% This file contains a station summary listing for a temperature % station in the Berkeley Earth database. This station is identified as: % % Berkeley ID#: 12754 % Primary Name: RAKAHANGA ATOLL % Record Type: TAVG % Country: Cook Islands [New Zealand] % Latitude: -10.05250 +/- 0.00500 % Longitude: -161.10000 +/- 0.00500 % Elevation (m): 3.27 +/- 1.77 % # of Months: 510 % % Alternate Names: RAKAHANGA % % IDs: ghcnm - 52591804000 % gsod - 918040-99999 % hadcru - 918040 % usaf - 918040 % wmo - 91804 % wmssc - 918040 % % Sources: Global Summary of the Day % Global Historical Climatology Network - Monthly v2 % Hadley Centre Data Release % World Monthly Surface Station Climatology % Global Historical Climatology Network - Monthly v3 % % Site Hash: 1f2675ac2300a1400af3b33a7a016582 % Raw Data Hash: 0942e8ad58086befff90f825e5269fc7 % Adj Data Hash: 39142cc58492aae63a84025a91224ad8 % % The data for this station is presented below in several columns and in % several forms. The temperature values are reported as "raw", % "adjusted", and "regional expectation". % % The "raw" values reflect the observations as originally ingested by % the Berkeley Earth system from one or more originating archive(s). % These "raw" values may reflect the merger of more than one temperature % time series if multiple archives reported values for this location. % Alongside the raw data we have also provided a flag indicating which % values failed initial quality control checks. A further column % dates at which the raw data may be subject to continuity "breaks" % due to documented station moves (denoted "1"), prolonged measurement % gaps (denoted "2"), documented time of observation changes (denoted "3") % and other empirically determined inhomogeneities (denoted "4"). % % In many cases, raw temperature data contains a number of artifacts, % caused by issues such as typographical errors, instrumentation changes, % station moves, and urban or agricultural development near the station. % The Berkeley Earth analysis process attempts to identify and estimate % the impact of various kinds of data quality problems by comparing each % time series to neighboring series. At the end of the analysis process, % the "adjusted" data is created as an estimate of what the weather at % this location might have looked like after removing apparent biases. % This "adjusted" data will generally to be free from quality control % issues and be regionally homogeneous. Some users may find this % "adjusted" data that attempts to remove apparent biases more % suitable for their needs, while other users may prefer to work % with raw values. % % Lastly, we have provided a "regional expectation" time series, based % on the Berkeley Earth expected temperatures in the neighborhood of the % station. This incorporates information from as many weather stations as % are available for the local region surrounding this location. Note % that the regional expectation may be a systematically a bit warmer or % colder than the weather stations by a few degrees due to differences % in mean elevation and other local characteristics. % % For each temperature time series, we have also included an "anomaly" % time series that removes both the seasonality and the long-term mean. % These anomalies may provide an easier way of seeing changes through % time. % % Reported temperatures are in Celsius and reflect monthly averages. As % these files are intended to be summaries for convenience, additional % information, including more detailed flagging and metadata, may be % available in our whole data set files. % % The Berkeley Earth analysis was run on 15-Nov-2013 19:55:48 % % Raw Data QC Continuity Adjusted Data Regional Expectation % Year, Month, Temperature, Anomaly, Failed, Breaks, Temperature, Anomaly, Temperature, Anomaly 1950 8 NaN NaN NaN NaN NaN NaN 27.548 0.035 1950 9 NaN NaN NaN NaN NaN NaN 27.548 -0.087 1950 10 NaN NaN NaN NaN NaN NaN 27.508 -0.065 1950 11 NaN NaN NaN NaN NaN NaN 27.615 -0.251 1950 12 NaN NaN NaN NaN NaN NaN 27.267 -0.502 1951 1 NaN NaN NaN NaN NaN NaN 27.659 -0.209 1951 2 NaN NaN NaN NaN NaN NaN 28.131 0.074 1951 3 NaN NaN NaN NaN NaN NaN 28.161 -0.151 1951 4 NaN NaN NaN NaN NaN NaN 28.040 -0.260 1951 5 NaN NaN NaN NaN NaN NaN 28.491 0.137 1951 6 NaN NaN NaN NaN NaN NaN 27.854 -0.085 1951 7 NaN NaN NaN NaN NaN NaN 27.157 -0.485 1951 8 28.100 0.535 0 0 28.617 1.051 28.248 0.735 1951 9 28.300 0.613 0 0 28.796 1.109 28.476 0.841 1951 10 27.800 0.175 0 0 28.320 0.695 27.856 0.283 1951 11 27.900 -0.018 0 0 28.441 0.522 28.115 0.248 1951 12 28.000 0.179 0 0 28.521 0.700 28.207 0.438 1952 1 28.100 0.179 0 0 28.585 0.665 28.567 0.699 1952 2 28.700 0.591 0 0 29.161 1.051 29.110 1.052 1952 3 28.300 -0.064 0 0 28.742 0.379 28.881 0.569 1952 4 28.600 0.248 0 0 29.040 0.688 28.843 0.543 1952 5 28.700 0.294 0 0 29.178 0.773 29.059 0.705 1952 6 27.800 -0.191 0 0 28.336 0.345 28.279 0.340 1952 7 27.600 -0.094 0 0 28.151 0.457 27.880 0.238 1952 8 27.600 0.035 0 0 28.117 0.551 27.890 0.377 1952 9 27.900 0.213 0 0 28.396 0.709 28.221 0.586 1952 10 27.300 -0.325 0 0 27.820 0.195 27.649 0.076 1952 11 27.300 -0.618 0 0 27.841 -0.078 28.020 0.153 1952 12 27.600 -0.221 0 0 28.121 0.300 28.106 0.337 1953 1 27.700 -0.221 0 0 28.185 0.265 28.255 0.386 1953 2 28.100 -0.009 0 0 28.561 0.451 28.550 0.493 1953 3 28.300 -0.064 0 0 28.742 0.379 28.905 0.594 1953 4 28.300 -0.052 0 0 28.740 0.388 28.720 0.421 1953 5 27.800 -0.606 0 0 28.278 -0.127 28.196 -0.157 1953 6 28.000 0.009 0 0 28.536 0.545 28.409 0.470 1953 7 27.200 -0.494 0 0 27.751 0.057 27.725 0.083 1953 8 27.500 -0.065 0 0 28.017 0.451 27.659 0.145 1953 9 27.400 -0.287 0 0 27.896 0.209 27.816 0.181 1953 10 27.600 -0.025 0 0 28.120 0.495 27.918 0.344 1953 11 27.900 -0.018 0 0 28.441 0.522 28.378 0.512 1953 12 27.300 -0.521 0 0 27.821 0.000 27.873 0.105 1954 1 27.700 -0.221 0 0 28.185 0.265 28.262 0.393 1954 2 27.400 -0.709 0 0 27.861 -0.249 28.058 0.001 1954 3 28.200 -0.164 0 0 28.642 0.279 28.822 0.510 1954 4 28.000 -0.352 0 0 28.440 0.088 28.378 0.078 1954 5 27.000 -1.406 0 0 27.478 -0.927 27.835 -0.518 1954 6 27.400 -0.591 0 0 27.936 -0.055 27.915 -0.024 1954 7 27.400 -0.294 0 0 27.951 0.257 27.770 0.128 1954 8 27.300 -0.265 0 0 27.817 0.251 27.764 0.251 1954 9 26.900 -0.787 0 0 27.396 -0.291 27.441 -0.193 1954 10 26.700 -0.925 0 0 27.220 -0.405 27.263 -0.310 1954 11 27.200 -0.718 0 0 27.741 -0.178 27.658 -0.209 1954 12 26.800 -1.021 0 0 27.321 -0.500 27.407 -0.362 1955 1 26.500 -1.421 0 0 26.985 -0.935 27.154 -0.715 1955 2 26.900 -1.209 0 0 27.361 -0.749 27.660 -0.397 1955 3 27.400 -0.964 0 0 27.842 -0.521 27.949 -0.363 1955 4 27.000 -1.352 0 0 27.440 -0.912 27.527 -0.773 1955 5 26.900 -1.506 0 0 27.378 -1.027 27.566 -0.788 1955 6 26.900 -1.091 0 0 27.436 -0.555 27.505 -0.434 1955 7 27.000 -0.694 0 0 27.551 -0.143 27.582 -0.060 1955 8 27.100 -0.465 0 0 27.617 0.051 27.442 -0.071 1955 9 26.700 -0.987 0 0 27.196 -0.491 27.240 -0.394 1955 10 26.600 -1.025 0 0 27.120 -0.505 27.036 -0.537 1955 11 26.600 -1.318 0 0 27.141 -0.778 27.232 -0.634 1955 12 27.100 -0.721 0 0 27.621 -0.200 27.401 -0.368 1956 1 26.900 -1.021 0 0 27.385 -0.535 27.343 -0.525 1956 2 27.100 -1.009 0 0 27.561 -0.549 27.641 -0.416 1956 3 27.400 -0.964 0 0 27.842 -0.521 27.929 -0.382 1956 4 27.800 -0.552 0 0 28.240 -0.112 28.041 -0.259 1956 5 27.400 -1.006 0 0 27.878 -0.527 27.786 -0.567 1956 6 27.300 -0.691 0 0 27.836 -0.155 27.501 -0.438 1956 7 27.200 -0.494 0 4 27.007 -0.687 27.052 -0.590 1956 8 27.500 -0.065 0 0 27.273 -0.292 27.224 -0.289 1956 9 27.600 -0.087 0 0 27.353 -0.334 27.234 -0.401 1956 10 27.200 -0.425 0 0 26.976 -0.649 26.948 -0.625 1956 11 27.400 -0.518 0 0 27.197 -0.721 27.285 -0.582 1956 12 27.700 -0.121 0 0 27.478 -0.343 27.301 -0.468 1957 1 27.800 -0.121 0 0 27.542 -0.379 27.708 -0.160 1957 2 28.300 0.191 0 0 28.017 -0.093 28.033 -0.024 1957 3 28.100 -0.264 0 0 27.799 -0.565 28.021 -0.291 1957 4 28.600 0.248 0 0 28.296 -0.056 28.252 -0.047 1957 5 28.900 0.494 0 0 28.635 0.229 28.534 0.180 1957 6 28.400 0.409 0 0 28.193 0.201 28.029 0.090 1957 7 28.600 0.906 0 0 28.407 0.713 28.067 0.425 1957 8 27.900 0.335 0 0 27.673 0.108 27.596 0.083 1957 9 28.000 0.313 0 0 27.753 0.066 27.615 -0.019 1957 10 28.300 0.675 0 0 28.076 0.451 27.724 0.151 1957 11 28.700 0.782 0 0 28.497 0.579 28.325 0.459 1957 12 29.100 1.279 0 0 28.878 1.057 28.589 0.821 1958 1 28.600 0.679 0 0 28.342 0.421 28.169 0.301 1958 2 28.400 0.291 0 0 28.117 0.007 28.265 0.208 1958 3 28.700 0.336 0 0 28.399 0.035 28.600 0.289 1958 4 29.300 0.948 0 0 28.996 0.644 28.932 0.632 1958 5 28.700 0.294 0 0 28.435 0.029 28.645 0.291 1958 6 28.800 0.809 0 0 28.593 0.601 28.302 0.363 1958 7 28.200 0.506 0 0 28.007 0.313 27.943 0.301 1958 8 27.800 0.235 0 0 27.573 0.008 27.257 -0.257 1958 9 27.900 0.213 0 0 27.653 -0.034 27.546 -0.089 1958 10 28.300 0.675 0 0 28.076 0.451 27.680 0.107 1958 11 28.500 0.582 0 0 28.297 0.379 28.135 0.269 1958 12 27.800 -0.021 0 0 27.578 -0.243 27.521 -0.247 1959 1 28.400 0.479 0 0 28.142 0.221 28.061 0.193 1959 2 28.400 0.291 0 0 28.117 0.007 28.161 0.104 1959 3 29.200 0.836 0 0 28.899 0.535 28.960 0.649 1959 4 29.300 0.948 0 0 28.996 0.644 28.953 0.653 1959 5 29.300 0.894 0 0 29.035 0.629 29.025 0.671 1959 6 28.600 0.609 0 0 28.393 0.401 28.374 0.435 1959 7 28.100 0.406 0 0 27.907 0.213 27.716 0.074 1959 8 27.700 0.135 0 0 27.473 -0.092 27.392 -0.121 1959 9 28.100 0.413 0 0 27.853 0.166 27.709 0.074 1959 10 28.000 0.375 0 0 27.776 0.151 27.538 -0.035 1959 11 28.400 0.482 0 0 28.197 0.279 27.950 0.084 1959 12 28.200 0.379 0 0 27.978 0.157 27.800 0.031 1960 1 28.200 0.279 0 0 27.942 0.021 27.811 -0.058 1960 2 28.200 0.091 0 0 27.917 -0.193 27.937 -0.121 1960 3 NaN NaN NaN NaN NaN NaN 28.189 -0.123 1960 4 28.600 0.248 0 0 28.296 -0.056 28.393 0.093 1960 5 28.700 0.294 0 0 28.435 0.029 28.604 0.251 1960 6 27.900 -0.091 0 0 27.693 -0.299 27.701 -0.238 1960 7 27.900 0.206 0 0 27.707 0.013 27.632 -0.010 1960 8 27.800 0.235 0 0 27.573 0.008 27.518 0.005 1960 9 27.900 0.213 0 0 27.653 -0.034 27.627 -0.008 1960 10 27.800 0.175 0 0 27.576 -0.049 27.384 -0.190 1960 11 28.100 0.182 0 0 27.897 -0.021 27.878 0.012 1960 12 28.600 0.779 0 0 28.378 0.557 28.209 0.440 1961 1 28.100 0.179 0 0 27.842 -0.079 28.053 0.184 1961 2 27.400 -0.709 0 4 27.868 -0.241 27.902 -0.155 1961 3 27.400 -0.964 0 0 27.716 -0.648 27.802 -0.509 1961 4 28.400 0.048 0 0 28.801 0.449 28.728 0.428 1961 5 28.600 0.194 0 0 29.140 0.735 29.103 0.749 1961 6 27.700 -0.291 0 0 28.167 0.176 28.024 0.085 1961 7 27.600 -0.094 0 0 27.952 0.258 27.853 0.211 1961 8 27.000 -0.565 0 0 27.447 -0.119 27.537 0.024 1961 9 26.700 -0.987 0 0 27.277 -0.410 27.359 -0.276 1961 10 27.400 -0.225 0 0 27.897 0.272 27.538 -0.035 1961 11 27.000 -0.918 0 0 27.385 -0.533 27.415 -0.452 1961 12 26.600 -1.221 0 0 27.081 -0.740 27.337 -0.432 1962 1 26.900 -1.021 0 0 27.490 -0.430 27.765 -0.103 1962 2 27.300 -0.809 0 0 27.768 -0.341 27.955 -0.102 1962 3 27.400 -0.964 0 0 27.716 -0.648 28.154 -0.157 1962 4 27.300 -1.052 0 0 27.701 -0.651 27.967 -0.333 1962 5 26.800 -1.606 0 0 27.340 -1.065 27.763 -0.590 1962 6 NaN NaN NaN NaN NaN NaN 27.811 -0.128 1962 7 NaN NaN NaN NaN NaN NaN 27.496 -0.145 1962 8 25.400 -2.165 0 0 25.847 -1.719 26.401 -1.112 1962 9 26.100 -1.587 0 0 26.677 -1.010 27.072 -0.563 1962 10 26.400 -1.225 0 0 26.897 -0.728 26.926 -0.647 1962 11 26.700 -1.218 0 0 27.085 -0.833 27.273 -0.594 1962 12 27.800 -0.021 0 0 28.281 0.460 27.907 0.138 1963 1 27.200 -0.721 0 0 27.790 -0.130 27.839 -0.029 1963 2 28.100 -0.009 0 0 28.568 0.459 28.536 0.479 1963 3 28.600 0.236 0 0 28.916 0.552 28.893 0.582 1963 4 27.000 -1.352 0 0 27.401 -0.951 27.693 -0.607 1963 5 28.700 0.294 0 0 29.240 0.835 28.962 0.608 1963 6 27.400 -0.591 0 0 27.867 -0.124 27.742 -0.197 1963 7 27.600 -0.094 0 0 27.952 0.258 27.673 0.031 1963 8 27.400 -0.165 0 0 27.847 0.281 27.632 0.119 1963 9 27.700 0.013 0 0 28.277 0.590 27.938 0.304 1963 10 NaN NaN NaN NaN NaN NaN 27.921 0.348 1963 11 27.900 -0.018 0 0 28.285 0.367 28.048 0.182 1963 12 27.900 0.079 0 0 28.381 0.560 28.163 0.395 1964 1 27.800 -0.121 0 0 28.390 0.470 28.228 0.359 1964 2 28.000 -0.109 0 0 28.468 0.359 28.473 0.416 1964 3 28.600 0.236 0 0 28.916 0.552 28.794 0.483 1964 4 28.200 -0.152 0 0 28.601 0.249 28.494 0.194 1964 5 28.100 -0.306 0 0 28.640 0.235 28.412 0.058 1964 6 27.200 -0.791 0 0 27.667 -0.324 27.532 -0.407 1964 7 27.100 -0.594 0 0 27.452 -0.242 27.253 -0.389 1964 8 27.100 -0.465 0 0 27.547 -0.019 27.233 -0.280 1964 9 27.100 -0.587 0 0 27.677 -0.010 27.492 -0.143 1964 10 26.900 -0.725 0 0 27.397 -0.228 27.173 -0.400 1964 11 27.700 -0.218 0 0 28.085 0.167 27.753 -0.114 1964 12 27.200 -0.621 0 0 27.681 -0.140 27.287 -0.482 1965 1 26.100 -1.821 0 0 26.690 -1.230 26.958 -0.911 1965 2 26.300 -1.809 0 0 26.768 -1.341 27.263 -0.794 1965 3 26.600 -1.764 0 0 26.916 -1.448 27.459 -0.852 1965 4 27.100 -1.252 0 0 27.501 -0.851 27.768 -0.532 1965 5 27.200 -1.206 0 0 27.740 -0.665 28.031 -0.322 1965 6 26.900 -1.091 0 0 27.367 -0.624 27.419 -0.520 1965 7 27.000 -0.694 0 0 27.352 -0.342 27.278 -0.364 1965 8 25.900 -1.665 0 0 26.347 -1.219 26.602 -0.911 1965 9 26.600 -1.087 0 0 27.177 -0.510 27.132 -0.503 1965 10 26.700 -0.925 0 0 27.197 -0.428 27.237 -0.336 1965 11 NaN NaN NaN NaN NaN NaN 28.123 0.257 1965 12 NaN NaN NaN NaN NaN NaN 28.056 0.287 1966 1 27.400 -0.521 0 0 27.990 0.070 28.071 0.202 1966 2 27.700 -0.409 0 0 28.168 0.059 28.400 0.342 1966 3 28.400 0.036 0 0 28.716 0.352 28.796 0.484 1966 4 28.600 0.248 0 0 29.001 0.649 28.788 0.488 1966 5 28.400 -0.006 0 0 28.940 0.535 28.925 0.572 1966 6 27.700 -0.291 0 0 28.167 0.176 27.930 -0.009 1966 7 27.400 -0.294 0 0 27.752 0.058 27.728 0.086 1966 8 27.800 0.235 0 0 28.247 0.681 27.900 0.387 1966 9 27.600 -0.087 0 0 28.177 0.490 27.783 0.149 1966 10 28.100 0.475 0 0 28.597 0.972 28.069 0.496 1966 11 28.100 0.182 0 0 28.485 0.567 28.313 0.447 1966 12 27.200 -0.621 0 0 27.681 -0.140 27.561 -0.208 1967 1 28.100 0.179 0 0 28.690 0.770 28.489 0.621 1967 2 27.300 -0.809 0 0 27.768 -0.341 27.750 -0.307 1967 3 27.600 -0.764 0 0 27.916 -0.448 28.050 -0.261 1967 4 27.400 -0.952 0 0 27.801 -0.551 27.772 -0.528 1967 5 27.600 -0.806 0 0 28.140 -0.265 28.206 -0.148 1967 6 27.600 -0.391 0 0 28.067 0.076 27.875 -0.064 1967 7 27.100 -0.594 0 0 27.452 -0.242 27.266 -0.376 1967 8 26.900 -0.665 0 0 27.347 -0.219 27.074 -0.440 1967 9 26.900 -0.787 0 0 27.477 -0.210 27.286 -0.349 1967 10 27.400 -0.225 0 0 27.897 0.272 27.518 -0.055 1967 11 27.600 -0.318 0 0 27.985 0.067 27.710 -0.157 1967 12 27.200 -0.621 0 0 27.681 -0.140 27.367 -0.402 1968 1 27.400 -0.521 0 0 27.990 0.070 27.852 -0.016 1968 2 27.800 -0.309 0 0 28.268 0.159 28.023 -0.034 1968 3 27.700 -0.664 0 0 28.016 -0.348 28.056 -0.255 1968 4 27.600 -0.752 0 0 28.001 -0.351 27.843 -0.457 1968 5 27.200 -1.206 0 0 27.740 -0.665 27.858 -0.495 1968 6 27.200 -0.791 0 0 27.667 -0.324 27.452 -0.487 1968 7 27.100 -0.594 0 0 27.452 -0.242 27.299 -0.343 1968 8 27.300 -0.265 0 0 27.747 0.181 27.473 -0.040 1968 9 27.100 -0.587 0 0 27.677 -0.010 27.603 -0.032 1968 10 27.200 -0.425 0 0 27.697 0.072 27.483 -0.090 1968 11 27.800 -0.118 0 0 28.185 0.267 27.969 0.103 1968 12 27.900 0.079 0 0 28.381 0.560 28.232 0.464 1969 1 28.200 0.279 0 0 28.790 0.870 28.746 0.878 1969 2 28.100 -0.009 0 0 28.568 0.459 28.637 0.579 1969 3 28.500 0.136 0 0 28.816 0.452 28.925 0.613 1969 4 28.900 0.548 0 0 29.301 0.949 29.152 0.852 1969 5 28.700 0.294 0 0 29.240 0.835 29.031 0.678 1969 6 27.900 -0.091 0 0 28.367 0.376 28.447 0.508 1969 7 27.800 0.106 0 0 28.152 0.458 28.049 0.407 1969 8 27.600 0.035 0 0 28.047 0.481 27.682 0.169 1969 9 27.600 -0.087 0 0 28.177 0.490 27.890 0.255 1969 10 28.200 0.575 0 0 28.697 1.072 28.235 0.662 1969 11 28.200 0.282 0 0 28.585 0.667 28.421 0.555 1969 12 28.300 0.479 0 0 28.781 0.960 28.462 0.693 1970 1 28.200 0.279 0 0 28.790 0.870 28.675 0.806 1970 2 27.900 -0.209 0 0 28.368 0.259 28.509 0.452 1970 3 27.800 -0.564 0 0 28.116 -0.248 28.233 -0.078 1970 4 27.900 -0.452 0 0 28.301 -0.051 28.359 0.059 1970 5 27.800 -0.606 0 0 28.340 -0.065 28.533 0.179 1970 6 27.100 -0.891 0 0 27.567 -0.424 27.814 -0.125 1970 7 26.700 -0.994 0 0 27.052 -0.642 27.233 -0.409 1970 8 26.800 -0.765 0 0 27.247 -0.319 27.193 -0.320 1970 9 26.600 -1.087 0 0 27.177 -0.510 27.169 -0.466 1970 10 26.500 -1.125 0 0 26.997 -0.628 27.033 -0.540 1970 11 26.700 -1.218 0 0 27.085 -0.833 27.211 -0.655 1970 12 26.600 -1.221 0 0 27.081 -0.740 27.084 -0.685 1971 1 NaN NaN NaN NaN NaN NaN 27.767 -0.102 1971 2 NaN NaN NaN NaN NaN NaN 27.173 -0.884 1971 3 NaN NaN NaN NaN NaN NaN 27.936 -0.375 1971 4 NaN NaN NaN NaN NaN NaN 27.905 -0.395 1971 5 NaN NaN NaN NaN NaN NaN 27.760 -0.593 1971 6 NaN NaN NaN NaN NaN NaN 27.372 -0.567 1971 7 NaN NaN NaN NaN NaN NaN 27.139 -0.503 1971 8 NaN NaN NaN NaN NaN NaN 26.902 -0.611 1971 9 NaN NaN NaN NaN NaN NaN 27.171 -0.463 1971 10 NaN NaN NaN NaN NaN NaN 27.272 -0.301 1971 11 NaN NaN NaN NaN NaN NaN 27.515 -0.351 1971 12 NaN NaN NaN NaN NaN NaN 26.814 -0.955 1972 1 NaN NaN NaN NaN NaN NaN 27.517 -0.351 1972 2 NaN NaN NaN NaN NaN NaN 28.061 0.004 1972 3 NaN NaN NaN NaN NaN NaN 28.157 -0.154 1972 4 NaN NaN NaN NaN NaN NaN 28.457 0.157 1972 5 NaN NaN NaN NaN NaN NaN 28.622 0.268 1972 6 NaN NaN NaN NaN NaN NaN 28.120 0.181 1972 7 NaN NaN NaN NaN NaN NaN 27.632 -0.010 1972 8 NaN NaN NaN NaN NaN NaN 27.715 0.202 1972 9 NaN NaN NaN NaN NaN NaN 27.715 0.080 1972 10 NaN NaN NaN NaN NaN NaN 27.801 0.228 1972 11 NaN NaN NaN NaN NaN NaN 28.200 0.333 1972 12 NaN NaN NaN NaN NaN NaN 28.799 1.030 1973 1 28.647 0.726 0 2 28.339 0.419 28.461 0.593 1973 2 29.041 0.932 0 0 28.709 0.599 28.898 0.841 1973 3 29.898 1.534 1 0 NaN NaN 29.544 1.233 1973 4 NaN NaN NaN NaN NaN NaN 29.259 0.959 1973 5 29.439 1.033 1 0 NaN NaN 28.699 0.345 1973 6 28.443 0.452 0 0 28.186 0.195 28.152 0.213 1973 7 27.461 -0.233 1 0 NaN NaN 28.100 0.458 1973 8 27.898 0.333 0 0 27.622 0.056 27.620 0.106 1973 9 28.381 0.694 0 0 28.084 0.398 27.995 0.360 1973 10 28.420 0.795 0 0 28.147 0.522 27.734 0.160 1973 11 28.264 0.346 0 0 28.012 0.093 27.868 0.001 1973 12 27.716 -0.105 0 0 27.444 -0.377 27.268 -0.500 1974 1 27.691 -0.230 0 0 27.383 -0.537 27.357 -0.512 1974 2 28.162 0.053 0 0 27.830 -0.280 27.806 -0.252 1974 3 27.611 -0.753 0 0 27.261 -1.103 27.646 -0.665 1974 4 28.357 0.005 0 0 28.004 -0.348 28.119 -0.181 1974 5 28.210 -0.196 0 0 27.896 -0.510 28.109 -0.245 1974 6 27.881 -0.110 0 0 27.624 -0.367 27.633 -0.306 1974 7 27.897 0.203 0 0 27.655 -0.039 27.639 -0.003 1974 8 27.427 -0.138 0 0 27.151 -0.415 27.148 -0.365 1974 9 27.301 -0.386 0 0 27.004 -0.682 27.188 -0.446 1974 10 27.578 -0.047 1 0 NaN NaN 27.252 -0.321 1974 11 27.927 0.009 0 0 27.675 -0.244 27.660 -0.207 1974 12 28.231 0.410 0 0 27.959 0.138 27.665 -0.104 1975 1 27.585 -0.336 0 0 27.277 -0.643 27.429 -0.440 1975 2 28.233 0.124 0 0 27.901 -0.209 28.113 0.056 1975 3 28.384 0.020 0 0 28.034 -0.330 28.269 -0.043 1975 4 28.615 0.263 0 0 28.262 -0.090 28.212 -0.088 1975 5 27.972 -0.434 0 0 27.658 -0.748 27.835 -0.519 1975 6 28.387 0.396 0 0 28.130 0.139 27.942 0.003 1975 7 27.623 -0.071 0 0 27.381 -0.313 27.281 -0.361 1975 8 27.452 -0.113 0 0 27.176 -0.390 27.030 -0.483 1975 9 27.730 0.043 0 0 27.433 -0.253 27.305 -0.329 1975 10 27.439 -0.186 0 0 27.166 -0.459 26.852 -0.721 1975 11 27.844 -0.074 0 0 27.592 -0.327 27.412 -0.454 1975 12 27.935 0.114 0 0 27.663 -0.158 27.327 -0.441 1976 1 27.539 -0.382 0 0 27.231 -0.689 27.029 -0.840 1976 2 27.609 -0.500 0 0 27.277 -0.833 27.235 -0.822 1976 3 28.124 -0.240 0 0 27.774 -0.590 27.932 -0.379 1976 4 28.207 -0.145 0 0 27.854 -0.498 27.808 -0.492 1976 5 28.299 -0.107 0 0 27.985 -0.421 27.967 -0.387 1976 6 28.028 0.037 1 0 NaN NaN 27.610 -0.329 1976 7 27.843 0.149 1 0 NaN NaN 27.372 -0.270 1976 8 27.746 0.181 0 4 27.301 -0.265 27.335 -0.178 1976 9 28.037 0.350 0 0 27.571 -0.115 27.615 -0.020 1976 10 28.335 0.710 0 0 27.893 0.268 27.780 0.207 1976 11 28.595 0.677 0 0 28.174 0.255 28.208 0.341 1976 12 28.586 0.765 0 0 28.145 0.324 27.893 0.124 1977 1 28.722 0.801 0 0 28.245 0.325 28.262 0.394 1977 2 29.155 1.046 0 0 28.654 0.544 28.810 0.753 1977 3 29.004 0.640 0 0 28.485 0.121 28.581 0.270 1977 4 29.128 0.776 0 0 28.606 0.254 28.637 0.337 1977 5 28.919 0.513 0 0 28.436 0.030 28.460 0.107 1977 6 28.122 0.131 0 0 27.696 -0.295 27.630 -0.309 1977 7 28.035 0.341 0 0 27.624 -0.070 27.551 -0.091 1977 8 27.833 0.268 0 0 27.388 -0.178 27.276 -0.237 1977 9 28.346 0.659 0 0 27.880 0.194 27.707 0.072 1977 10 29.004 1.379 0 0 28.562 0.937 28.061 0.487 1977 11 28.502 0.584 0 0 28.081 0.162 28.000 0.134 1977 12 28.477 0.656 0 0 28.036 0.215 27.839 0.070 1978 1 28.494 0.573 0 0 28.017 0.097 28.075 0.206 1978 2 27.874 -0.235 0 0 27.373 -0.737 27.797 -0.260 1978 3 28.823 0.459 0 0 28.304 -0.060 28.386 0.075 1978 4 28.808 0.456 0 0 28.286 -0.066 28.282 -0.018 1978 5 29.109 0.703 0 0 28.626 0.220 28.563 0.210 1978 6 28.509 0.518 0 0 28.083 0.092 27.912 -0.027 1978 7 27.982 0.288 0 0 27.571 -0.123 27.337 -0.305 1978 8 28.020 0.455 0 0 27.575 0.009 27.389 -0.124 1978 9 28.167 0.480 0 0 27.701 0.015 27.488 -0.147 1978 10 28.181 0.556 0 0 27.739 0.114 27.434 -0.139 1978 11 28.074 0.156 0 0 27.653 -0.266 27.681 -0.186 1978 12 28.181 0.360 0 0 27.740 -0.081 27.662 -0.107 1979 1 28.244 0.323 0 0 27.767 -0.153 27.609 -0.260 1979 2 28.685 0.576 0 0 28.184 0.074 28.268 0.211 1979 3 29.151 0.787 0 0 28.632 0.268 28.676 0.364 1979 4 29.375 1.023 0 0 28.853 0.501 28.719 0.419 1979 5 29.122 0.716 0 0 28.639 0.233 28.729 0.376 1979 6 28.531 0.540 0 4 28.281 0.290 28.249 0.310 1979 7 28.433 0.739 0 0 28.235 0.541 27.990 0.348 1979 8 27.716 0.151 0 0 27.496 -0.069 27.561 0.048 1979 9 28.194 0.507 0 0 27.918 0.231 27.853 0.218 1979 10 28.048 0.423 0 0 27.796 0.171 27.507 -0.066 1979 11 28.818 0.900 0 0 28.611 0.692 28.427 0.561 1979 12 28.756 0.935 0 0 28.512 0.691 28.111 0.342 1980 1 28.556 0.635 0 0 28.282 0.362 28.321 0.453 1980 2 28.583 0.474 0 0 28.402 0.292 28.530 0.473 1980 3 28.756 0.392 0 0 28.678 0.315 28.901 0.589 1980 4 28.741 0.389 0 0 28.617 0.265 28.629 0.329 1980 5 28.918 0.512 0 0 28.679 0.273 28.634 0.280 1980 6 28.845 0.854 1 0 NaN NaN 28.169 0.230 1980 7 28.530 0.836 0 0 28.332 0.638 28.136 0.494 1980 8 28.331 0.766 0 0 28.111 0.546 27.897 0.384 1980 9 28.148 0.461 0 0 27.872 0.185 27.880 0.245 1980 10 27.978 0.353 0 0 27.726 0.101 27.530 -0.043 1980 11 28.149 0.231 0 0 27.942 0.023 27.993 0.127 1980 12 28.032 0.211 0 0 27.788 -0.033 27.969 0.201 1981 1 27.800 -0.121 0 0 27.526 -0.394 27.713 -0.156 1981 2 27.800 -0.309 0 0 27.619 -0.491 27.635 -0.423 1981 3 27.800 -0.564 0 0 27.722 -0.641 27.814 -0.498 1981 4 28.300 -0.052 0 0 28.176 -0.176 28.293 -0.007 1981 5 28.300 -0.106 0 0 28.061 -0.345 28.219 -0.134 1981 6 28.100 0.109 0 0 27.850 -0.141 27.791 -0.148 1981 7 28.100 0.406 0 0 27.902 0.208 27.729 0.087 1981 8 27.500 -0.065 0 0 27.280 -0.285 27.333 -0.180 1981 9 28.100 0.413 0 0 27.824 0.137 27.820 0.185 1981 10 27.800 0.175 0 0 27.548 -0.077 27.462 -0.111 1981 11 27.600 -0.318 0 0 27.393 -0.526 27.684 -0.182 1981 12 28.000 0.179 0 0 27.756 -0.065 27.714 -0.055 1982 1 28.597 0.676 0 0 28.323 0.403 28.386 0.518 1982 2 28.317 0.208 0 0 28.136 0.026 28.208 0.150 1982 3 28.985 0.621 0 0 28.907 0.544 29.073 0.762 1982 4 28.753 0.401 0 0 28.629 0.277 28.735 0.435 1982 5 28.891 0.485 0 0 28.652 0.246 28.773 0.419 1982 6 28.450 0.459 0 0 28.200 0.209 28.163 0.224 1982 7 28.283 0.589 0 0 28.085 0.391 28.057 0.415 1982 8 28.333 0.768 0 0 28.113 0.548 27.973 0.460 1982 9 28.027 0.340 0 0 27.751 0.064 27.685 0.051 1982 10 28.344 0.719 0 0 28.092 0.467 27.921 0.348 1982 11 28.344 0.426 0 0 28.137 0.218 28.010 0.144 1982 12 28.763 0.942 0 0 28.519 0.698 28.334 0.565 1983 1 28.647 0.726 0 0 28.373 0.453 28.310 0.441 1983 2 28.972 0.863 0 0 28.791 0.681 28.943 0.886 1983 3 28.688 0.324 0 0 28.610 0.247 28.814 0.502 1983 4 28.354 0.002 0 0 28.230 -0.122 28.280 -0.020 1983 5 28.780 0.374 0 0 28.541 0.135 28.672 0.318 1983 6 28.024 0.033 0 0 27.774 -0.217 27.766 -0.173 1983 7 27.532 -0.162 0 0 27.334 -0.360 27.287 -0.355 1983 8 27.496 -0.069 0 0 27.276 -0.289 27.242 -0.272 1983 9 27.998 0.311 0 0 27.722 0.035 27.676 0.041 1983 10 28.496 0.871 0 0 28.244 0.619 27.938 0.365 1983 11 27.959 0.041 0 0 27.752 -0.167 27.770 -0.096 1983 12 28.747 0.926 0 0 28.503 0.682 28.276 0.507 1984 1 28.330 0.409 0 0 28.056 0.136 28.071 0.203 1984 2 28.659 0.550 0 0 28.478 0.368 28.579 0.521 1984 3 28.367 0.003 0 0 28.289 -0.074 28.392 0.080 1984 4 28.363 0.011 0 0 28.239 -0.113 28.421 0.121 1984 5 28.685 0.279 0 0 28.446 0.040 28.511 0.157 1984 6 28.072 0.081 0 0 27.822 -0.169 27.724 -0.215 1984 7 27.342 -0.352 0 0 27.144 -0.550 27.042 -0.599 1984 8 27.477 -0.088 0 0 27.257 -0.308 27.157 -0.357 1984 9 28.180 0.493 0 0 27.904 0.217 27.747 0.112 1984 10 28.240 0.615 0 0 27.988 0.363 27.695 0.122 1984 11 28.146 0.228 0 0 27.939 0.020 27.759 -0.108 1984 12 28.414 0.593 0 0 28.170 0.349 27.888 0.119 1985 1 27.824 -0.097 0 0 27.550 -0.370 27.572 -0.297 1985 2 27.724 -0.385 0 0 27.543 -0.567 27.740 -0.318 1985 3 28.050 -0.314 0 0 27.972 -0.391 28.296 -0.016 1985 4 27.950 -0.402 0 0 27.826 -0.526 28.001 -0.299 1985 5 28.163 -0.243 0 0 27.924 -0.482 28.170 -0.184 1985 6 27.974 -0.017 0 0 27.724 -0.267 27.705 -0.234 1985 7 27.780 0.086 0 0 27.582 -0.112 27.477 -0.165 1985 8 27.917 0.352 0 0 27.697 0.132 27.564 0.051 1985 9 28.217 0.530 0 0 27.941 0.254 27.808 0.174 1985 10 28.416 0.791 0 0 28.164 0.539 27.826 0.253 1985 11 28.278 0.360 0 0 28.071 0.152 27.957 0.091 1985 12 28.084 0.263 0 0 27.840 0.019 27.824 0.055 1986 1 28.405 0.484 0 0 28.131 0.211 28.085 0.216 1986 2 28.514 0.405 0 0 28.333 0.223 28.305 0.247 1986 3 28.475 0.111 0 0 28.397 0.034 28.523 0.212 1986 4 28.443 0.091 0 0 28.319 -0.033 28.367 0.067 1986 5 28.776 0.370 0 0 28.537 0.131 28.515 0.162 1986 6 28.624 0.633 0 0 28.374 0.383 28.266 0.327 1986 7 27.998 0.304 0 0 27.800 0.106 27.747 0.105 1986 8 27.821 0.256 0 0 27.601 0.036 27.464 -0.049 1986 9 28.591 0.904 0 0 28.315 0.628 28.202 0.568 1986 10 28.661 1.036 0 0 28.409 0.784 27.975 0.402 1986 11 29.236 1.318 0 0 29.029 1.110 28.737 0.870 1986 12 28.543 0.722 0 0 28.299 0.478 28.063 0.295 1987 1 29.135 1.214 0 0 28.861 0.941 28.640 0.772 1987 2 28.987 0.878 0 0 28.806 0.696 28.900 0.842 1987 3 29.172 0.808 0 0 29.094 0.731 29.210 0.899 1987 4 28.741 0.389 0 0 28.617 0.265 28.634 0.334 1987 5 29.129 0.723 0 0 28.890 0.484 28.851 0.497 1987 6 28.769 0.778 0 0 28.519 0.528 28.275 0.336 1987 7 28.161 0.467 0 0 27.963 0.269 27.681 0.039 1987 8 28.235 0.670 0 0 28.015 0.450 27.619 0.106 1987 9 28.994 1.307 0 0 28.718 1.031 28.293 0.658 1987 10 28.102 0.477 0 0 27.850 0.225 27.595 0.022 1987 11 29.144 1.226 0 0 28.937 1.018 28.725 0.859 1987 12 28.855 1.034 0 0 28.611 0.790 28.350 0.581 1988 1 28.582 0.661 0 0 28.308 0.388 28.251 0.383 1988 2 28.335 0.226 0 0 28.154 0.044 28.257 0.199 1988 3 28.697 0.333 0 0 28.619 0.256 28.909 0.597 1988 4 28.688 0.336 0 0 28.564 0.212 28.534 0.234 1988 5 28.665 0.259 0 0 28.426 0.020 28.576 0.223 1988 6 28.274 0.283 0 0 28.024 0.033 27.998 0.059 1988 7 27.715 0.021 0 0 27.517 -0.177 27.453 -0.189 1988 8 27.846 0.281 0 0 27.626 0.061 27.564 0.051 1988 9 28.000 0.313 0 0 27.724 0.037 27.661 0.026 1988 10 27.676 0.051 0 0 27.424 -0.201 27.256 -0.318 1988 11 27.887 -0.031 0 0 27.680 -0.239 27.587 -0.279 1988 12 27.803 -0.018 0 0 27.559 -0.262 27.417 -0.352 1989 1 28.011 0.090 0 0 27.737 -0.183 27.627 -0.241 1989 2 27.952 -0.157 0 0 27.771 -0.339 27.945 -0.112 1989 3 27.952 -0.412 0 0 27.874 -0.489 28.084 -0.227 1989 4 28.131 -0.221 0 0 28.007 -0.345 28.092 -0.208 1989 5 28.729 0.323 0 0 28.490 0.084 28.473 0.119 1989 6 28.044 0.053 0 0 27.794 -0.197 27.763 -0.176 1989 7 27.799 0.105 0 0 27.601 -0.093 27.546 -0.096 1989 8 27.925 0.360 0 0 27.705 0.140 27.643 0.130 1989 9 28.085 0.398 0 0 27.809 0.122 27.801 0.166 1989 10 28.076 0.451 0 0 27.824 0.199 27.628 0.055 1989 11 28.477 0.559 0 0 28.270 0.351 28.020 0.154 1989 12 28.177 0.356 0 0 27.933 0.112 27.714 -0.054 1990 1 28.665 0.744 0 0 28.391 0.471 28.255 0.386 1990 2 28.652 0.543 1 0 NaN NaN 28.010 -0.047 1990 3 27.693 -0.671 1 0 NaN NaN 28.489 0.178 1990 4 29.259 0.907 0 0 29.135 0.783 28.928 0.628 1990 5 29.063 0.657 0 0 28.824 0.418 28.843 0.489 1990 6 28.559 0.568 0 0 28.309 0.318 28.226 0.287 1990 7 28.326 0.632 0 0 28.128 0.434 27.954 0.312 1990 8 28.186 0.621 0 0 27.966 0.401 27.796 0.283 1990 9 28.411 0.724 0 0 28.135 0.448 28.179 0.545 1990 10 28.647 1.022 0 0 28.395 0.770 28.128 0.555 1990 11 28.367 0.449 0 0 28.160 0.241 28.029 0.162 1990 12 28.398 0.577 0 0 28.154 0.333 27.952 0.183 1991 1 29.014 1.093 0 0 28.740 0.820 28.714 0.845 1991 2 28.990 0.881 0 0 28.809 0.699 28.816 0.759 1991 3 29.303 0.939 0 0 29.225 0.862 29.313 1.002 1991 4 29.681 1.329 0 0 29.557 1.205 29.366 1.066 1991 5 29.587 1.181 0 0 29.348 0.942 29.163 0.810 1991 6 28.974 0.983 0 0 28.724 0.733 28.614 0.675 1991 7 28.685 0.991 0 0 28.487 0.793 28.321 0.679 1991 8 28.544 0.979 0 0 28.324 0.759 28.220 0.707 1991 9 28.391 0.704 0 0 28.115 0.428 28.010 0.375 1991 10 28.792 1.167 0 0 28.540 0.915 28.178 0.605 1991 11 28.471 0.553 0 0 28.264 0.345 28.303 0.437 1991 12 28.400 0.579 0 0 28.156 0.335 28.134 0.365 1992 1 29.308 1.387 0 0 29.034 1.114 28.851 0.983 1992 2 29.107 0.998 0 0 28.926 0.816 28.908 0.851 1992 3 28.998 0.634 0 0 28.920 0.557 28.925 0.614 1992 4 29.580 1.228 0 0 29.456 1.104 29.244 0.944 1992 5 29.150 0.744 0 0 28.911 0.505 28.963 0.609 1992 6 29.101 1.110 0 0 28.851 0.860 28.600 0.661 1992 7 28.838 1.144 1 0 NaN NaN 28.198 0.556 1992 8 28.415 0.850 0 0 28.195 0.630 28.073 0.560 1992 9 28.235 0.548 0 0 27.959 0.272 27.981 0.346 1992 10 29.261 1.636 0 0 29.009 1.384 28.511 0.937 1992 11 28.921 1.003 0 0 28.714 0.795 28.428 0.562 1992 12 28.330 0.509 0 0 28.086 0.265 28.025 0.256 1993 1 28.455 0.534 0 0 28.181 0.261 28.246 0.377 1993 2 28.131 0.022 0 0 27.950 -0.160 28.045 -0.013 1993 3 28.771 0.407 0 0 28.693 0.330 28.840 0.528 1993 4 28.935 0.583 0 0 28.811 0.459 28.782 0.482 1993 5 28.828 0.422 0 0 28.589 0.183 28.648 0.294 1993 6 28.370 0.379 0 0 28.120 0.129 28.095 0.156 1993 7 27.894 0.200 0 0 27.696 0.002 27.648 0.006 1993 8 28.193 0.628 0 0 27.973 0.408 27.948 0.435 1993 9 28.183 0.496 0 0 27.907 0.220 27.950 0.315 1993 10 28.188 0.563 0 0 27.936 0.311 27.786 0.213 1993 11 28.256 0.338 0 0 28.049 0.130 28.125 0.259 1993 12 28.566 0.745 0 0 28.322 0.501 28.298 0.529 1994 1 28.907 0.986 0 0 28.633 0.713 28.554 0.685 1994 2 28.765 0.656 0 0 28.584 0.474 28.737 0.680 1994 3 28.527 0.163 0 0 28.449 0.086 28.626 0.315 1994 4 29.028 0.676 0 0 28.904 0.552 28.775 0.475 1994 5 29.052 0.646 0 0 28.813 0.407 28.754 0.400 1994 6 28.984 0.993 0 0 28.734 0.743 28.498 0.559 1994 7 28.550 0.856 0 0 28.352 0.658 28.168 0.526 1994 8 27.905 0.340 0 0 27.685 0.120 27.518 0.005 1994 9 28.749 1.062 0 0 28.473 0.786 28.190 0.556 1994 10 28.636 1.011 0 0 28.384 0.759 28.172 0.599 1994 11 28.513 0.595 0 0 28.306 0.387 28.155 0.289 1994 12 29.034 1.213 0 0 28.790 0.969 28.526 0.757 1995 1 28.731 0.810 0 0 28.457 0.537 28.412 0.544 1995 2 28.877 0.768 0 0 28.696 0.586 28.805 0.748 1995 3 29.180 0.816 0 0 29.102 0.739 29.217 0.906 1995 4 29.476 1.124 0 0 29.352 1.000 29.125 0.825 1995 5 28.724 0.318 0 0 28.485 0.079 28.633 0.280 1995 6 28.754 0.763 0 0 28.504 0.513 28.453 0.514 1995 7 28.180 0.486 0 0 27.982 0.288 28.051 0.409 1995 8 28.177 0.612 0 0 27.957 0.392 27.924 0.410 1995 9 28.300 0.613 0 0 28.024 0.337 28.016 0.381 1995 10 28.280 0.655 0 0 28.028 0.403 27.711 0.138 1995 11 28.625 0.707 0 0 28.418 0.499 28.193 0.327 1995 12 28.442 0.621 0 0 28.198 0.377 27.931 0.162 1996 1 28.399 0.478 0 0 28.125 0.205 28.187 0.319 1996 2 28.102 -0.007 0 0 27.921 -0.189 28.343 0.286 1996 3 28.331 -0.033 0 0 28.253 -0.110 28.460 0.148 1996 4 28.598 0.246 0 0 28.474 0.122 28.466 0.166 1996 5 28.877 0.471 1 0 NaN NaN 28.811 0.458 1996 6 28.426 0.435 0 0 28.176 0.185 28.180 0.241 1996 7 28.231 0.537 1 0 NaN NaN 27.873 0.231 1996 8 27.423 -0.142 1 0 NaN NaN 27.888 0.375 1996 9 NaN NaN NaN NaN NaN NaN 27.504 -0.130 1996 10 NaN NaN NaN NaN NaN NaN 27.598 0.025 1996 11 NaN NaN NaN NaN NaN NaN 28.392 0.526 1996 12 NaN NaN NaN NaN NaN NaN 27.962 0.193 1997 1 NaN NaN NaN NaN NaN NaN 27.730 -0.138 1997 2 NaN NaN NaN NaN NaN NaN 28.252 0.194 1997 3 NaN NaN NaN NaN NaN NaN 27.985 -0.327 1997 4 NaN NaN NaN NaN NaN NaN 28.634 0.334 1997 5 NaN NaN NaN NaN NaN NaN 28.573 0.219 1997 6 NaN NaN NaN NaN NaN NaN 27.473 -0.466 1997 7 NaN NaN NaN NaN NaN NaN 27.916 0.274 1997 8 NaN NaN NaN NaN NaN NaN 27.772 0.259