% This file contains a station summary listing for a temperature % station in the Berkeley Earth database. This station is identified as: % % Berkeley ID#: 13211 % Primary Name: ANCON % Record Type: TAVG % Country: Ecuador % Latitude: -2.32000 +/- 0.00500 % Longitude: -80.85250 +/- 0.00500 % Elevation (m): 9.00 +/- 0.05 % # of Months: 239 % % IDs: ghcnm - 30684200001 % hadcru - 842960 % wmssc - 842960 % % Sources: Global Historical Climatology Network - Monthly v2 % Hadley Centre Data Release % World Monthly Surface Station Climatology % Global Historical Climatology Network - Monthly v3 % % Site Hash: 4b35642545becbea95a00c5dab19de0c % Raw Data Hash: 9c3ba23eee65788b81a2a3337c9db673 % Adj Data Hash: a44e6569b2e37b969821875879964e70 % % 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 1960 1 NaN NaN NaN NaN NaN NaN 24.544 -0.370 1960 2 NaN NaN NaN NaN NaN NaN 25.700 -0.344 1960 3 NaN NaN NaN NaN NaN NaN 25.963 -0.462 1960 4 NaN NaN NaN NaN NaN NaN 25.194 -0.436 1960 5 NaN NaN NaN NaN NaN NaN 23.818 -0.661 1960 6 NaN NaN NaN NaN NaN NaN 22.207 -0.700 1960 7 NaN NaN NaN NaN NaN NaN 21.109 -0.429 1960 8 NaN NaN NaN NaN NaN NaN 20.282 -0.521 1960 9 NaN NaN NaN NaN NaN NaN 20.648 -0.207 1960 10 NaN NaN NaN NaN NaN NaN 20.842 -0.386 1960 11 NaN NaN NaN NaN NaN NaN 21.908 -0.253 1960 12 NaN NaN NaN NaN NaN NaN 23.455 0.101 1961 1 25.900 0.649 0 0 25.912 0.661 25.618 0.705 1961 2 27.000 0.618 0 0 26.841 0.458 26.739 0.695 1961 3 26.200 -0.563 0 0 26.052 -0.711 26.228 -0.197 1961 4 25.700 -0.268 0 0 25.702 -0.266 25.398 -0.232 1961 5 24.000 -0.817 0 0 24.167 -0.651 24.068 -0.411 1961 6 22.800 -0.444 0 0 23.098 -0.147 22.630 -0.276 1961 7 20.800 -1.075 0 0 21.164 -0.711 20.862 -0.675 1961 8 19.300 -1.841 0 0 19.615 -1.526 19.679 -1.124 1961 9 21.200 0.007 0 0 21.404 0.212 20.755 -0.100 1961 10 21.700 0.134 0 0 21.874 0.309 21.425 0.197 1961 11 22.100 -0.399 0 0 22.330 -0.169 21.910 -0.251 1961 12 23.900 0.209 0 0 24.099 0.407 23.720 0.367 1962 1 25.900 0.649 0 0 25.912 0.661 25.351 0.438 1962 2 26.300 -0.082 0 0 26.141 -0.242 26.092 0.048 1962 3 25.600 -1.163 0 0 25.452 -1.311 25.666 -0.759 1962 4 26.100 0.132 0 0 26.102 0.134 25.374 -0.256 1962 5 23.700 -1.117 0 0 23.867 -0.951 23.889 -0.591 1962 6 21.400 -1.844 0 0 21.698 -1.547 21.613 -1.293 1962 7 20.900 -0.975 0 0 21.264 -0.611 21.111 -0.427 1962 8 20.500 -0.641 0 0 20.815 -0.326 20.313 -0.491 1962 9 21.000 -0.193 0 0 21.204 0.012 20.858 0.003 1962 10 21.500 -0.066 0 0 21.674 0.109 21.149 -0.079 1962 11 22.500 0.001 0 0 22.730 0.231 22.278 0.117 1962 12 23.700 0.009 0 0 23.899 0.207 23.464 0.111 1963 1 25.400 0.149 0 0 25.412 0.161 25.067 0.154 1963 2 26.400 0.018 0 0 26.241 -0.142 26.089 0.045 1963 3 26.600 -0.163 0 0 26.452 -0.311 26.335 -0.090 1963 4 24.900 -1.068 0 0 24.902 -1.066 24.782 -0.848 1963 5 24.100 -0.717 0 0 24.267 -0.551 24.117 -0.362 1963 6 22.000 -1.244 0 0 22.298 -0.947 22.093 -0.814 1963 7 21.500 -0.375 0 0 21.864 -0.011 21.435 -0.103 1963 8 21.800 0.659 0 0 22.115 0.974 21.338 0.535 1963 9 21.200 0.007 0 0 21.404 0.212 21.268 0.413 1963 10 21.700 0.134 0 0 21.874 0.309 21.599 0.372 1963 11 22.000 -0.499 0 0 22.230 -0.269 22.019 -0.142 1963 12 23.700 0.009 0 0 23.899 0.207 23.439 0.085 1964 1 25.200 -0.051 0 0 25.212 -0.039 24.899 -0.014 1964 2 26.000 -0.382 0 0 25.841 -0.542 25.658 -0.387 1964 3 27.100 0.337 0 0 26.952 0.189 26.856 0.431 1964 4 26.200 0.232 0 0 26.202 0.234 25.517 -0.114 1964 5 23.100 -1.717 0 0 23.267 -1.551 23.384 -1.096 1964 6 22.000 -1.244 0 0 22.298 -0.947 21.980 -0.926 1964 7 20.400 -1.475 0 0 20.764 -1.111 20.473 -1.064 1964 8 20.900 -0.241 0 0 21.215 0.074 20.368 -0.435 1964 9 21.000 -0.193 0 0 21.204 0.012 20.346 -0.509 1964 10 21.300 -0.266 0 0 21.474 -0.091 20.833 -0.395 1964 11 23.200 0.701 0 0 23.430 0.931 22.396 0.234 1964 12 23.200 -0.491 0 0 23.399 -0.293 22.789 -0.564 1965 1 26.500 1.249 0 0 26.512 1.261 25.479 0.566 1965 2 27.200 0.818 0 0 27.041 0.658 26.461 0.416 1965 3 27.100 0.337 0 0 26.952 0.189 26.784 0.359 1965 4 26.900 0.932 0 0 26.902 0.934 26.243 0.613 1965 5 26.400 1.583 0 0 26.567 1.749 25.714 1.234 1965 6 25.200 1.956 0 0 25.498 2.253 24.625 1.718 1965 7 25.600 3.725 0 0 25.964 4.089 23.030 1.492 1965 8 22.600 1.459 0 0 22.915 1.774 21.805 1.001 1965 9 22.000 0.807 0 0 22.204 1.012 21.511 0.656 1965 10 22.600 1.034 0 0 22.774 1.209 22.139 0.912 1965 11 22.600 0.101 0 0 22.830 0.331 22.481 0.320 1965 12 24.600 0.909 0 0 24.799 1.107 24.175 0.821 1966 1 25.900 0.649 0 0 25.912 0.661 25.872 0.959 1966 2 26.700 0.318 0 0 26.541 0.158 26.455 0.411 1966 3 26.400 -0.363 0 0 26.252 -0.511 26.421 -0.004 1966 4 25.800 -0.168 0 0 25.802 -0.166 25.532 -0.098 1966 5 24.300 -0.517 0 0 24.467 -0.351 24.369 -0.111 1966 6 22.200 -1.044 0 0 22.498 -0.747 22.253 -0.653 1966 7 21.000 -0.875 0 0 21.364 -0.511 21.406 -0.132 1966 8 21.800 0.659 0 0 22.115 0.974 21.197 0.394 1966 9 21.000 -0.193 0 0 21.204 0.012 21.044 0.189 1966 10 22.400 0.834 0 0 22.574 1.009 21.781 0.553 1966 11 22.600 0.101 0 0 22.830 0.331 22.277 0.115 1966 12 22.400 -1.291 0 0 22.599 -1.093 22.810 -0.543 1967 1 24.500 -0.751 0 0 24.512 -0.739 25.032 0.118 1967 2 26.500 0.118 0 0 26.341 -0.042 26.262 0.218 1967 3 25.800 -0.963 0 0 25.652 -1.111 25.930 -0.495 1967 4 25.200 -0.768 0 0 25.202 -0.766 25.361 -0.270 1967 5 24.400 -0.417 0 0 24.567 -0.251 24.570 0.091 1967 6 21.800 -1.444 0 0 22.098 -1.147 22.096 -0.811 1967 7 20.400 -1.475 0 0 20.764 -1.111 20.845 -0.693 1967 8 21.000 -0.141 0 0 21.315 0.174 20.621 -0.183 1967 9 20.600 -0.593 0 0 20.804 -0.388 20.300 -0.554 1967 10 20.800 -0.766 0 0 20.974 -0.591 20.942 -0.286 1967 11 20.800 -1.699 0 0 21.030 -1.469 21.049 -1.112 1967 12 22.000 -1.691 0 0 22.199 -1.493 22.459 -0.895 1968 1 23.700 -1.551 0 0 23.712 -1.539 24.369 -0.544 1968 2 25.500 -0.882 0 0 25.341 -1.042 25.421 -0.624 1968 3 26.600 -0.163 0 0 26.452 -0.311 25.870 -0.555 1968 4 26.000 0.032 0 0 26.002 0.034 24.961 -0.669 1968 5 24.500 -0.317 0 0 24.667 -0.151 23.322 -1.157 1968 6 22.700 -0.544 0 0 22.998 -0.247 22.093 -0.813 1968 7 21.600 -0.275 0 0 21.964 0.089 21.547 0.009 1968 8 21.000 -0.141 0 0 21.315 0.174 20.814 0.011 1968 9 21.300 0.107 0 0 21.504 0.312 21.239 0.384 1968 10 21.600 0.034 0 0 21.774 0.209 21.205 -0.022 1968 11 22.400 -0.099 0 0 22.630 0.131 22.319 0.158 1968 12 23.200 -0.491 0 0 23.399 -0.293 23.444 0.091 1969 1 24.800 -0.451 0 0 24.812 -0.439 25.022 0.108 1969 2 25.800 -0.582 0 4 25.718 -0.664 26.359 0.314 1969 3 27.700 0.937 0 0 27.561 0.798 27.412 0.987 1969 4 27.400 1.432 0 0 27.153 1.185 26.741 1.110 1969 5 26.800 1.983 0 0 26.456 1.639 26.006 1.527 1969 6 26.000 2.756 0 0 25.559 2.315 24.753 1.846 1969 7 25.900 4.025 0 0 25.413 3.538 22.622 1.084 1969 8 24.800 3.659 0 0 24.400 3.259 21.632 0.828 1969 9 21.600 0.407 0 0 21.348 0.155 21.349 0.494 1969 10 22.800 1.234 0 0 22.589 1.023 22.011 0.784 1969 11 23.600 1.101 0 0 23.330 0.831 22.836 0.674 1969 12 24.900 1.209 0 0 24.637 0.946 24.206 0.853 1970 1 25.700 0.449 0 0 25.549 0.298 25.295 0.381 1970 2 26.200 -0.182 0 0 26.118 -0.264 26.093 0.048 1970 3 26.200 -0.563 0 0 26.061 -0.702 26.208 -0.217 1970 4 25.600 -0.368 0 0 25.353 -0.615 25.627 -0.003 1970 5 25.400 0.583 0 0 25.056 0.239 24.500 0.021 1970 6 23.900 0.656 0 0 23.459 0.215 22.670 -0.237 1970 7 21.600 -0.275 0 0 21.113 -0.762 20.733 -0.804 1970 8 20.100 -1.041 0 0 19.700 -1.441 19.896 -0.907 1970 9 21.100 -0.093 0 0 20.848 -0.345 20.425 -0.430 1970 10 NaN NaN NaN NaN NaN NaN 21.334 0.106 1970 11 22.400 -0.099 0 0 22.130 -0.369 21.792 -0.369 1970 12 24.400 0.709 0 0 24.137 0.446 23.272 -0.081 1971 1 24.900 -0.351 0 0 24.749 -0.502 24.536 -0.378 1971 2 26.100 -0.282 0 0 26.018 -0.364 25.541 -0.503 1971 3 26.900 0.137 0 0 26.761 -0.002 26.189 -0.236 1971 4 25.600 -0.368 0 0 25.353 -0.615 24.818 -0.813 1971 5 23.000 -1.817 0 0 22.656 -2.161 22.798 -1.681 1971 6 22.000 -1.244 0 0 21.559 -1.685 21.901 -1.005 1971 7 20.800 -1.075 0 0 20.313 -1.562 20.776 -0.762 1971 8 20.400 -0.741 0 0 20.000 -1.141 20.083 -0.720 1971 9 21.000 -0.193 0 0 20.748 -0.445 20.378 -0.477 1971 10 20.900 -0.666 0 0 20.689 -0.877 20.577 -0.651 1971 11 22.400 -0.099 0 0 22.130 -0.369 21.675 -0.486 1971 12 23.400 -0.291 0 0 23.137 -0.554 23.064 -0.290 1972 1 25.600 0.349 0 0 25.449 0.198 25.027 0.113 1972 2 24.500 -1.882 0 0 24.418 -1.964 26.055 0.010 1972 3 27.400 0.637 0 0 27.261 0.498 26.865 0.440 1972 4 27.000 1.032 0 0 26.753 0.785 26.234 0.604 1972 5 26.100 1.283 0 0 25.756 0.939 25.320 0.840 1972 6 25.700 2.456 0 0 25.259 2.015 24.853 1.947 1972 7 25.800 3.925 0 0 25.313 3.438 24.179 2.642 1972 8 24.200 3.059 0 0 23.800 2.659 22.930 2.127 1972 9 23.600 2.407 0 0 23.348 2.155 22.447 1.592 1972 10 23.700 2.134 0 0 23.489 1.923 22.929 1.701 1972 11 24.200 1.701 0 0 23.930 1.431 23.444 1.283 1972 12 22.000 -1.691 0 0 21.737 -1.954 24.867 1.514 1973 1 27.100 1.849 0 0 26.949 1.698 26.395 1.481 1973 2 27.600 1.218 0 0 27.518 1.136 27.010 0.966 1973 3 27.900 1.137 0 0 27.761 0.998 27.254 0.829 1973 4 26.800 0.832 0 0 26.553 0.585 25.829 0.198 1973 5 24.900 0.083 0 0 24.556 -0.261 24.416 -0.064 1973 6 23.900 0.656 0 0 23.459 0.215 22.681 -0.226 1973 7 21.100 -0.775 0 0 20.613 -1.262 20.608 -0.930 1973 8 21.000 -0.141 0 0 20.600 -0.541 19.926 -0.878 1973 9 21.900 0.707 0 0 21.648 0.455 20.743 -0.111 1973 10 21.300 -0.266 0 0 21.089 -0.477 20.587 -0.641 1973 11 22.000 -0.499 0 0 21.730 -0.769 21.496 -0.666 1973 12 22.700 -0.991 0 0 22.437 -1.254 22.314 -1.039 1974 1 24.700 -0.551 0 0 24.549 -0.702 24.460 -0.454 1974 2 26.100 -0.282 0 0 26.018 -0.364 25.756 -0.289 1974 3 26.800 0.037 0 0 26.661 -0.102 26.084 -0.341 1974 4 26.300 0.332 0 0 26.053 0.085 25.526 -0.105 1974 5 25.700 0.883 0 0 25.356 0.539 24.635 0.156 1974 6 22.900 -0.344 0 0 22.459 -0.785 22.380 -0.527 1974 7 21.500 -0.375 0 0 21.013 -0.862 21.010 -0.528 1974 8 20.700 -0.441 0 0 20.300 -0.841 20.076 -0.728 1974 9 20.900 -0.293 0 0 20.648 -0.545 19.961 -0.894 1974 10 21.200 -0.366 0 0 20.989 -0.577 20.559 -0.669 1974 11 22.000 -0.499 0 0 21.730 -0.769 21.710 -0.452 1974 12 24.200 0.509 0 0 23.937 0.246 23.228 -0.125 1975 1 25.100 -0.151 0 0 24.949 -0.302 24.582 -0.331 1975 2 25.900 -0.482 0 0 25.818 -0.564 25.598 -0.446 1975 3 26.400 -0.363 0 0 26.261 -0.502 26.476 0.051 1975 4 25.700 -0.268 0 0 25.453 -0.515 25.491 -0.139 1975 5 24.300 -0.517 0 0 23.956 -0.861 23.777 -0.702 1975 6 23.000 -0.244 0 0 22.559 -0.685 22.537 -0.369 1975 7 21.800 -0.075 0 0 21.313 -0.562 20.668 -0.870 1975 8 20.800 -0.341 0 0 20.400 -0.741 19.847 -0.957 1975 9 21.100 -0.093 0 0 20.848 -0.345 20.198 -0.656 1975 10 21.500 -0.066 0 0 21.289 -0.277 20.629 -0.598 1975 11 22.200 -0.299 0 0 21.930 -0.569 21.097 -1.065 1975 12 23.300 -0.391 0 0 23.037 -0.654 22.505 -0.848 1976 1 24.600 -0.651 0 0 24.449 -0.802 24.412 -0.501 1976 2 25.400 -0.982 0 0 25.318 -1.064 25.605 -0.439 1976 3 26.400 -0.363 0 0 26.261 -0.502 26.505 0.080 1976 4 26.200 0.232 0 0 25.953 -0.015 25.855 0.225 1976 5 25.300 0.483 0 0 24.956 0.139 24.964 0.485 1976 6 24.400 1.156 0 0 23.959 0.715 24.054 1.147 1976 7 24.000 2.125 0 0 23.513 1.638 23.296 1.758 1976 8 22.500 1.359 0 0 22.100 0.959 21.959 1.155 1976 9 21.900 0.707 0 0 21.648 0.455 21.340 0.485 1976 10 22.200 0.634 0 0 21.989 0.423 21.620 0.393 1976 11 23.200 0.701 0 0 22.930 0.431 22.834 0.672 1976 12 24.700 1.009 0 0 24.437 0.746 24.320 0.967 1977 1 25.600 0.349 0 0 25.449 0.198 25.399 0.486 1977 2 26.600 0.218 0 0 26.518 0.136 26.223 0.178 1977 3 27.100 0.337 0 0 26.961 0.198 26.939 0.514 1977 4 25.500 -0.468 0 4 26.028 0.059 25.569 -0.062 1977 5 23.300 -1.517 0 0 23.681 -1.136 24.024 -0.456 1977 6 23.300 0.056 0 0 23.608 0.363 23.272 0.366 1977 7 21.500 -0.375 0 0 21.763 -0.112 21.490 -0.047 1977 8 20.800 -0.341 0 0 20.981 -0.160 20.663 -0.140 1977 9 20.800 -0.393 0 0 20.904 -0.289 20.691 -0.163 1977 10 21.500 -0.066 0 0 21.580 0.014 21.314 0.086 1977 11 22.500 0.001 0 0 22.587 0.088 22.268 0.106 1977 12 23.900 0.209 0 0 24.038 0.347 23.893 0.540 1978 1 25.800 0.549 0 0 26.099 0.848 25.366 0.453 1978 2 26.600 0.218 0 0 27.119 0.737 26.548 0.504 1978 3 25.800 -0.963 0 0 26.420 -0.343 26.206 -0.219 1978 4 25.700 -0.268 0 0 26.228 0.259 25.497 -0.133 1978 5 24.900 0.083 0 0 25.281 0.464 24.692 0.212 1978 6 22.600 -0.644 0 0 22.908 -0.337 22.476 -0.431 1978 7 20.800 -1.075 0 0 21.063 -0.812 21.033 -0.505 1978 8 20.100 -1.041 0 0 20.281 -0.860 20.057 -0.746 1978 9 20.700 -0.493 0 0 20.804 -0.389 20.476 -0.379 1978 10 21.400 -0.166 0 0 21.480 -0.086 21.068 -0.159 1978 11 23.300 0.801 0 0 23.387 0.888 22.910 0.749 1978 12 24.000 0.309 0 0 24.138 0.447 23.720 0.366 1979 1 25.800 0.549 0 0 26.099 0.848 25.404 0.491 1979 2 26.200 -0.182 0 0 26.719 0.337 26.255 0.211 1979 3 26.700 -0.063 0 0 27.320 0.557 26.791 0.366 1979 4 26.000 0.032 0 0 26.528 0.559 26.039 0.408 1979 5 24.700 -0.117 0 0 25.081 0.264 24.713 0.233 1979 6 23.300 0.056 0 0 23.608 0.363 23.326 0.420 1979 7 21.800 -0.075 0 0 22.063 0.188 21.418 -0.119 1979 8 21.000 -0.141 0 0 21.181 0.040 20.925 0.122 1979 9 21.100 -0.093 0 0 21.204 0.011 21.318 0.463 1979 10 22.600 1.034 0 0 22.680 1.114 21.965 0.738 1979 11 22.400 -0.099 0 0 22.487 -0.012 22.283 0.122 1979 12 23.800 0.109 0 0 23.938 0.247 23.698 0.345 1980 1 25.400 0.149 0 0 25.699 0.448 25.558 0.644 1980 2 26.200 -0.182 0 0 26.719 0.337 26.319 0.274 1980 3 27.100 0.337 0 0 27.720 0.957 27.008 0.583 1980 4 27.000 1.032 0 0 27.528 1.559 26.624 0.994 1980 5 25.700 0.883 0 0 26.081 1.264 25.329 0.850 1980 6 23.100 -0.144 0 0 23.408 0.163 23.512 0.606 1980 7 21.800 -0.075 0 0 22.063 0.188 21.320 -0.218 1980 8 20.800 -0.341 0 0 20.981 -0.160 20.613 -0.191 1980 9 21.300 0.107 0 0 21.404 0.211 20.793 -0.062 1980 10 21.500 -0.066 0 0 21.580 0.014 21.519 0.292 1980 11 22.200 -0.299 0 0 22.287 -0.212 22.070 -0.091 1980 12 23.300 -0.391 0 0 23.438 -0.253 23.472 0.119 1981 1 NaN NaN NaN NaN NaN NaN 24.617 -0.297 1981 2 NaN NaN NaN NaN NaN NaN 25.837 -0.207 1981 3 NaN NaN NaN NaN NaN NaN 26.672 0.247 1981 4 NaN NaN NaN NaN NaN NaN 25.855 0.225 1981 5 NaN NaN NaN NaN NaN NaN 23.749 -0.730 1981 6 NaN NaN NaN NaN NaN NaN 22.498 -0.408 1981 7 NaN NaN NaN NaN NaN NaN 21.471 -0.067 1981 8 NaN NaN NaN NaN NaN NaN 20.235 -0.569 1981 9 NaN NaN NaN NaN NaN NaN 21.028 0.173 1981 10 NaN NaN NaN NaN NaN NaN 21.076 -0.152 1981 11 NaN NaN NaN NaN NaN NaN 22.099 -0.063 1981 12 NaN NaN NaN NaN NaN NaN 23.868 0.514