Year Month Count Valid Min Max Mean Stdev Median 2007 01 598 592 19.704451 20.344774 20.098382 0.165247 20.139161 2007 02 598 592 18.5905 19.416214 19.125541 0.236419 19.216947 2007 03 598 592 19.570612 20.483904 20.078709 0.269355 20.113646 2007 04 598 592 21.945566 22.375834 22.134556 0.123827 22.1032 2007 05 598 592 25.172258 25.566484 25.349859 0.088675 25.329806 2007 06 598 592 27.310766 27.996532 27.592904 0.209012 27.4835 2007 07 598 592 27.886614 28.494741 28.18993 0.166127 28.157452 2007 08 598 592 29.068871 29.629227 29.392505 0.136016 29.406936 2007 09 598 592 29.249067 29.6842 29.509748 0.122649 29.530267 2007 10 598 592 27.548742 28.037323 27.706051 0.112745 27.673032 2007 11 598 592 23.432833 24.2635 23.917787 0.211026 23.983616 2007 12 598 592 20.012968 21.188227 20.634119 0.329936 20.659967 2008 01 598 592 19.004129 19.989225 19.633961 0.270258 19.763484 2008 02 598 592 19.327345 20.165758 19.790955 0.268739 19.829121 2008 03 598 592 19.129614 19.491323 19.259841 0.109066 19.226258 2008 04 598 592 22.313267 22.516966 22.398152 0.037367 22.394933 2008 05 598 592 25.442226 26.004999 25.752856 0.12863 25.724081 2008 06 598 592 27.084667 27.551001 27.305443 0.121442 27.288317 2008 07 598 592 26.713968 27.513678 27.31148 0.163024 27.372226 2008 08 598 592 28.315968 28.850807 28.571447 0.136562 28.536806 2008 09 598 592 27.767534 28.159166 28.070424 0.062713 28.084633 2008 10 598 592 25.578032 26.215065 25.957378 0.153109 25.989871 2008 11 598 592 22.705299 23.647667 23.136836 0.271507 23.161051 2008 12 598 592 21.016743 21.287483 21.185244 0.058009 21.196936 2009 01 598 592 19.977968 20.343128 20.164489 0.087836 20.176564 2009 02 598 592 18.923571 19.486607 19.265287 0.180819 19.310965 2009 03 598 592 19.521774 20.211323 19.862991 0.212131 19.812129 2009 04 598 592 22.093666 22.871834 22.515725 0.236248 22.504017 2009 05 598 592 25.70542 25.881483 25.803202 0.042332 25.80529 2009 06 598 592 27.638266 28.168667 27.902808 0.161054 27.84285 2009 07 598 592 28.131453 28.802387 28.502458 0.166655 28.512565 2009 08 598 592 28.361193 29.065453 28.778659 0.147908 28.752032 2009 09 598 592 29.143066 29.507799 29.383024 0.071062 29.390933 2009 10 598 592 26.680098 27.495323 27.190527 0.18419 27.119064 2009 11 598 592 21.856533 22.685034 22.38251 0.156422 22.410017 2009 12 598 592 20.213322 20.982355 20.682163 0.195148 20.726919 2010 01 598 592 17.230354 18.64329 18.081355 0.371171 18.124694 2010 02 598 592 15.246678 16.661535 15.987002 0.390156 15.986375 2010 03 598 592 16.764904 17.709194 17.280501 0.290982 17.269516 2010 04 598 592 21.475466 22.099934 21.816045 0.172626 21.756267 2010 05 598 592 25.427065 25.871258 25.673141 0.119135 25.676226 2010 06 598 592 27.978899 28.596834 28.372577 0.121238 28.392134 2010 07 598 592 29.145807 29.512291 29.305081 0.105728 29.272468 2010 08 598 592 29.508678 30.230162 29.882624 0.183076 29.889242 2010 09 598 592 28.996433 29.223133 29.125144 0.037056 29.120266 2010 10 598 592 26.745064 27.100613 26.901454 0.074344 26.905081 2010 11 598 592 23.068001 23.688734 23.461968 0.15419 23.494317 2010 12 598 592 19.649193 20.312096 20.11792 0.169002 20.19092 2011 01 598 592 18.087387 18.593033 18.384565 0.15171 18.39971 2011 02 598 592 16.198893 16.67625 16.443653 0.104781 16.440536 2011 03 598 592 19.732128 20.350065 19.992322 0.166448 19.9455 2011 04 598 592 23.151758 23.945587 23.55038 0.218954 23.544172 2011 05 598 592 25.300386 25.814419 25.529164 0.145596 25.477694 2011 06 598 592 26.878733 27.213934 27.060267 0.091509 27.070283 2011 07 598 592 27.996387 28.754677 28.541781 0.14735 28.554952 2011 08 598 592 28.472645 29.089193 28.88962 0.126445 28.896548 2011 09 598 592 29.249533 29.395567 29.334735 0.037864 29.346366 2011 10 598 592 26.549709 27.150581 26.795893 0.162441 26.743258 2011 11 598 592 22.588133 23.572834 23.218836 0.256044 23.34775 2011 12 598 592 18.247677 19.359161 18.74746 0.256931 18.72379 2012 01 598 592 16.997322 18.587257 17.726158 0.437287 17.686935 2012 02 598 592 17.152449 17.908552 17.554076 0.163109 17.561689 2012 03 598 592 19.824451 20.019323 19.913695 0.057634 19.904871 2012 04 598 592 23.904167 24.1656 24.051024 0.069805 24.074334 2012 05 598 592 25.377516 25.726 25.578518 0.102847 25.615565 2012 06 598 592 27.937933 28.185766 28.088829 0.049448 28.08995 2012 07 598 592 28.521452 28.935839 28.741034 0.110701 28.732355 2012 08 598 592 28.250195 28.951225 28.620688 0.178611 28.594887 2012 09 598 592 28.000067 28.440001 28.188338 0.140772 28.180533 2012 10 598 592 26.668516 27.345613 27.017792 0.14576 27.012678 2012 11 598 592 22.902334 24.028099 23.51776 0.294001 23.540116 2012 12 598 592 20.472033 21.524065 21.152499 0.239528 21.169258 2013 01 598 592 18.944098 20.019451 19.56768 0.277 19.616581 2013 02 598 592 18.056356 19.190607 18.807621 0.301498 18.845643 2013 03 598 592 18.427355 19.147032 18.916854 0.204125 19.024081 2013 04 598 592 20.604733 21.080799 20.882255 0.120411 20.841784 2013 05 598 592 23.401064 23.97913 23.709279 0.168881 23.712968 2013 06 598 592 27.396667 27.730566 27.581374 0.09296 27.571517 2013 07 598 592 27.475613 27.979193 27.7208 0.171732 27.715838 2013 08 598 592 27.977032 28.351549 28.182516 0.118085 28.194275 2013 09 598 592 29.119633 29.244267 29.188228 0.030588 29.193916 2013 10 598 592 27.208323 27.62571 27.414549 0.117169 27.378016 2013 11 598 592 22.497801 23.34 22.834171 0.212163 22.8042 2013 12 598 592 16.811871 17.71184 17.259824 0.201506 17.265903 2014 01 598 592 15.207 16.450516 15.755277 0.251769 15.725032 2014 02 598 592 14.154072 15.204322 14.63786 0.214924 14.621786 2014 03 598 592 15.915387 16.829903 16.3249 0.205577 16.296 2014 04 598 592 19.737467 20.120899 19.872103 0.082447 19.847266 2014 05 598 592 23.065193 23.457226 23.236699 0.107412 23.219903 2014 06 598 592 26.759233 27.130466 26.938085 0.094405 26.9191 2014 07 598 592 27.217806 27.778582 27.491378 0.16721 27.455855 2014 08 598 592 27.490065 27.995031 27.70914 0.142533 27.72258 2014 09 598 592 28.631866 29.064568 28.962787 0.078167 28.983434 2014 10 598 592 27.015354 27.598 27.322388 0.143134 27.294419 2014 11 598 592 23.210934 24.000834 23.682161 0.202267 23.728766 2014 12 598 592 19.463549 20.513355 20.178988 0.252546 20.267371 2015 01 598 592 19.323257 19.993225 19.785379 0.176654 19.872001 2015 02 598 592 17.722143 18.870285 18.38732 0.329145 18.477696 2015 03 598 592 18.24987 19.280451 18.829729 0.322045 18.890065 2015 04 598 592 21.859066 22.539366 22.089707 0.204599 22.04025 2015 05 598 592 25.352581 25.598742 25.509675 0.054304 25.517339 2015 06 598 592 28.3902 29.048367 28.836585 0.131496 28.845917 2015 07 598 592 26.775419 27.003775 26.890143 0.047701 26.894 2015 08 598 592 27.731806 28.071259 27.926504 0.049133 27.928016 2015 09 598 592 28.728233 29.154301 28.959997 0.096575 28.965366 2015 10 598 592 26.879129 27.605871 27.187055 0.161608 27.214016 2015 11 598 592 22.896101 23.967934 23.427046 0.29316 23.44645 2015 12 598 592 20.470419 21.753935 21.297051 0.308212 21.430839 2016 01 598 592 16.566097 18.162775 17.401841 0.394985 17.43679 2016 02 598 592 17.359482 18.484276 17.919851 0.330181 17.825397 2016 03 598 592 20.011032 20.467419 20.196839 0.119238 20.164388 2016 04 598 592 21.892567 22.585867 22.282638 0.16751 22.247884 2016 05 598 592 25.396257 25.831194 25.535142 0.089445 25.519968 2016 06 598 592 27.630066 27.946533 27.818575 0.08511 27.84825 2016 07 598 592 27.17429 27.554646 27.356559 0.10328 27.39771 2016 08 598 592 27.716322 28.063194 27.845525 0.067569 27.832516 2016 09 598 592 29.990267 30.340233 30.164939 0.104337 30.196567 2016 10 598 592 27.423935 28.108677 27.801891 0.135388 27.793259 2016 11 598 592 24.112034 24.919367 24.632497 0.171957 24.661433 2016 12 598 592 20.872709 21.874258 21.38365 0.2503 21.384307 2017 01 598 592 17.129677 18.523323 17.666444 0.354321 17.601807 2017 02 598 592 18.778 20.375393 19.637775 0.468414 19.593768 2017 03 598 592 20.204161 21.371807 20.822322 0.343534 20.815081 2017 04 598 592 23.641966 24.326534 23.979663 0.161612 23.9459 2017 05 598 592 25.60129 25.943258 25.767813 0.088686 25.748113 2017 06 598 592 28.226299 28.828434 28.569978 0.153522 28.581417 2017 07 598 592 28.397968 28.872644 28.739533 0.09992 28.772323 2017 08 598 592 27.910452 28.396097 28.206499 0.158679 28.26758 2017 09 598 592 28.012766 28.396933 28.233949 0.096081 28.217916 2017 10 598 592 26.91729 27.410774 27.128083 0.13401 27.130049 2017 11 598 592 24.027367 24.766834 24.421265 0.184689 24.452883 2017 12 598 592 19.692291 20.758581 20.308652 0.236081 20.301694 2018 01 598 592 15.947258 17.561419 16.759702 0.385852 16.742435 2018 02 598 592 16.398537 17.37425 16.807337 0.239668 16.76184 2018 03 598 592 20.163065 20.724903 20.46698 0.180645 20.521257 2018 04 598 592 22.3536 22.8517 22.63183 0.109755 22.597067 2018 05 598 592 25.69129 25.966904 25.841292 0.0685 25.828693 2018 06 598 592 26.955799 27.436501 27.22081 0.111661 27.210799 2018 07 598 592 27.538807 27.953936 27.740741 0.119298 27.731597 2018 08 598 592 28.016678 28.410872 28.237882 0.076309 28.242629 2018 09 598 592 28.805834 29.046101 28.948743 0.062912 28.963166 2018 10 598 592 27.276451 27.681484 27.502268 0.114683 27.490581 2018 11 598 592 22.964901 23.522734 23.310041 0.116525 23.311601 2018 12 598 592 18.057516 19.333549 18.896492 0.329622 19.008952 2019 01 598 592 16.731356 17.724096 17.482804 0.23547 17.591839 2019 02 598 592 16.267963 17.001106 16.742774 0.18224 16.770822 2019 03 598 592 18.839613 19.782322 19.401976 0.262422 19.462646 2019 04 598 592 21.376766 21.7547 21.550204 0.120173 21.491384 2019 05 598 592 24.994452 25.160484 25.077014 0.040149 25.078355 2019 06 598 592 28.1598 28.656366 28.429099 0.120245 28.397384 2019 07 598 592 27.851065 28.36058 28.173584 0.124313 28.167758 2019 08 598 592 28.350775 28.730709 28.533507 0.106808 28.540161 2019 09 598 592 29.329334 29.688866 29.502581 0.099535 29.497816 2019 10 598 592 27.06558 27.785192 27.457357 0.157198 27.503872 2019 11 598 592 21.463867 22.312834 21.990614 0.208302 22.029266 2019 12 598 592 17.955355 19.794935 18.986299 0.467735 19.065274 2020 01 598 592 17.666161 18.903645 18.358993 0.33346 18.441597 2020 02 598 592 17.129068 18.283344 17.781902 0.291592 17.844879 2020 03 598 592 20.178419 20.560387 20.327009 0.098087 20.299888 2020 04 598 592 24.342066 24.952299 24.646291 0.134578 24.6549 2020 05 598 592 26.36471 26.921322 26.703265 0.113248 26.722322 2020 06 598 592 28.4291 28.957399 28.737468 0.109398 28.732134 2020 07 598 592 28.219742 29.879354 29.165132 0.403347 29.05158 2020 08 598 592 29.251032 30.278452 29.768224 0.242567 29.69313 2020 09 598 592 28.558367 28.9182 28.751378 0.073753 28.758083 2020 10 598 592 26.750677 27.221548 27.041819 0.137115 27.087758 2020 11 598 592 23.298067 24.106867 23.826984 0.22252 23.877867 2020 12 598 592 19.110903 20.298903 19.765897 0.322115 19.838694 2021 01 598 592 17.202517 19.137774 18.373535 0.503791 18.547032 2021 02 598 592 17.939384 19.087654 18.626866 0.333743 18.6695 2021 03 598 592 17.79887 18.791323 18.124011 0.221437 18.078435 2021 04 598 592 22.173599 22.7833 22.427472 0.106557 22.426534 2021 05 598 592 25.630741 26.470839 26.084035 0.182234 26.103854 2021 06 598 592 28.135567 29.000566 28.668343 0.17186 28.66215 2021 07 598 592 28.458515 29.567999 29.096148 0.270856 29.006419 2021 08 598 592 29.337999 30.654741 30.123994 0.271087 30.059516 2021 09 598 592 29.555567 29.860968 29.766649 0.052455 29.767099 2021 10 598 592 27.590162 27.960773 27.831955 0.113468 27.883403 2021 11 598 592 23.341167 24.518333 24.022683 0.295539 24.105717 2021 12 598 592 21.546354 21.928839 21.792458 0.116109 21.842613 2022 01 598 592 20.097807 21.187645 20.820242 0.286153 20.918145 2022 02 598 592 14.38625 15.979143 15.400121 0.389177 15.512732 2022 03 598 592 16.084644 17.359291 16.798668 0.341317 16.840484 2022 04 598 592 22.0065 22.384132 22.150941 0.111245 22.12775 2022 05 598 592 25.963097 26.243547 26.093014 0.069806 26.071468 2022 06 598 592 27.5158 27.793833 27.66544 0.068517 27.670617 2022 07 598 592 28.188162 28.970581 28.656045 0.155769 28.617339 2022 08 598 592 28.644194 29.112516 28.951035 0.097921 28.95571 2022 09 598 592 29.429167 29.717466 29.609666 0.066668 29.610833 2022 10 598 592 27.106838 27.399775 27.255509 0.053079 27.260741 2022 11 598 592 23.492758 24.310621 24.035486 0.211615 24.087207 2022 12 598 592 18.697968 19.91342 19.463393 0.326283 19.512065 2023 01 598 592 16.420258 18.021065 17.35466 0.430016 17.434 2023 02 598 592 15.92875 16.999537 16.603236 0.247846 16.645858 2023 03 598 592 21.009258 21.364935 21.129099 0.075505 21.110387 2023 04 598 592 22.932827 23.616861 23.318189 0.183944 23.301534 2023 05 598 592 26.305515 26.514872 26.409579 0.041078 26.412387 2023 06 598 592 28.289633 29.464666 28.850304 0.313956 28.696767 2023 07 598 592 27.811323 28.83358 28.293401 0.220529 28.303242 2023 08 598 592 28.581741 29.651354 29.103279 0.283459 29.050114 2023 09 598 592 30.006634 30.5571 30.353759 0.125248 30.340117 2023 10 598 592 27.874033 28.243322 28.152089 0.075449 28.173741 2023 11 598 592 23.0273 23.4751 23.367126 0.092321 23.395284 2023 12 598 592 19.589666 19.8995 19.777327 0.065135 19.778851