Year Month Count Valid Min Max Mean Stdev Median 2007 01 310 302 18.875935 19.629354 19.214792 0.213552 19.177032 2007 02 310 302 18.016607 18.481857 18.208387 0.163495 18.129231 2007 03 310 302 19.326645 19.542549 19.424265 0.066052 19.432113 2007 04 310 302 21.705833 22.056101 21.89349 0.10258 21.922983 2007 05 310 302 25.249096 25.463709 25.383644 0.054386 25.391323 2007 06 310 302 27.302534 27.905333 27.610655 0.140548 27.629833 2007 07 310 302 27.858322 28.47913 28.207288 0.160089 28.21563 2007 08 310 302 29.229645 30.014517 29.67437 0.234248 29.688452 2007 09 310 302 29.437067 29.756233 29.600003 0.078268 29.61065 2007 10 310 302 27.213676 27.819742 27.432545 0.157023 27.419743 2007 11 310 302 22.704332 23.581066 23.066577 0.207195 23.013634 2007 12 310 302 19.83758 20.10387 19.952758 0.068314 19.945274 2008 01 310 302 18.460451 18.972065 18.700324 0.116858 18.687258 2008 02 310 302 18.375034 19.162794 18.782959 0.221943 18.766896 2008 03 310 302 18.661968 19.190226 18.895964 0.150042 18.869403 2008 04 310 302 22.201534 22.648466 22.421349 0.145857 22.4136 2008 05 310 302 25.407227 25.812128 25.663761 0.098642 25.68621 2008 06 310 302 27.250267 28.4884 27.903142 0.326365 27.947817 2008 07 310 302 27.204355 28.418806 27.917648 0.355929 27.953081 2008 08 310 302 28.034452 28.691517 28.364716 0.16033 28.386032 2008 09 310 302 27.8624 28.102301 27.986268 0.060563 27.987333 2008 10 310 302 25.366161 25.871902 25.594392 0.145567 25.575483 2008 11 310 302 22.2122 22.722366 22.447536 0.124632 22.478001 2008 12 310 302 20.710484 21.067614 20.891368 0.085791 20.88179 2009 01 310 302 19.666677 20.065613 19.885754 0.098568 19.883855 2009 02 310 302 18.616714 19.044607 18.866583 0.10344 18.877464 2009 03 310 302 19.087322 19.404871 19.22132 0.079901 19.193291 2009 04 310 302 21.634966 21.862066 21.717915 0.056038 21.716717 2009 05 310 302 25.688129 26.128387 25.924986 0.152228 25.942694 2009 06 310 302 27.601633 28.224266 27.85528 0.159594 27.8144 2009 07 310 302 27.914646 28.451742 28.166154 0.118873 28.146436 2009 08 310 302 28.389872 29.458162 28.896537 0.269666 28.878484 2009 09 310 302 29.031334 29.256599 29.148601 0.05246 29.1548 2009 10 310 302 26.557129 26.78871 26.662329 0.049583 26.66137 2009 11 310 302 21.432966 22.006001 21.670151 0.170315 21.605133 2009 12 310 302 19.451872 20.187485 19.786594 0.198813 19.759274 2010 01 310 302 15.905581 17.032032 16.399119 0.320572 16.344774 2010 02 310 302 15.073357 15.336893 15.176376 0.062539 15.161018 2010 03 310 302 16.520548 16.67384 16.601954 0.024326 16.594338 2010 04 310 302 21.283733 21.5532 21.40057 0.041006 21.401383 2010 05 310 302 25.498096 26.067291 25.79996 0.16936 25.837532 2010 06 310 302 28.093134 29.136267 28.560794 0.281615 28.551333 2010 07 310 302 29.538742 29.868032 29.760658 0.092488 29.790129 2010 08 310 302 29.324516 30.363386 29.853987 0.26578 29.854516 2010 09 310 302 29.219833 29.386967 29.31371 0.030262 29.31605 2010 10 310 302 26.699354 27.07729 26.932018 0.089091 26.931387 2010 11 310 302 22.507467 23.021034 22.711693 0.145517 22.63645 2010 12 310 302 19.268484 19.713741 19.494031 0.112306 19.491565 2011 01 310 302 18.208645 18.428549 18.32393 0.051301 18.327435 2011 02 310 302 16.800964 17.530464 17.228473 0.212726 17.307839 2011 03 310 302 19.402678 19.582064 19.471619 0.0497 19.448339 2011 04 310 302 22.987518 23.257206 23.139462 0.05937 23.137448 2011 05 310 302 25.394064 25.531775 25.467916 0.031481 25.471725 2011 06 310 302 27.2111 28.419834 27.9233 0.325339 27.985983 2011 07 310 302 28.67342 29.773806 29.176046 0.303361 29.147226 2011 08 310 302 28.933483 30.086065 29.451823 0.311822 29.408258 2011 09 310 302 29.390566 29.590834 29.510965 0.042756 29.518451 2011 10 310 302 26.196678 26.696581 26.447081 0.128135 26.448467 2011 11 310 302 22.2255 22.646767 22.37931 0.115383 22.32685 2011 12 310 302 18.744354 19.82 19.289579 0.301206 19.3325 2012 01 310 302 17.434807 17.93087 17.700221 0.101061 17.713678 2012 02 310 302 17.055206 17.426517 17.203526 0.083557 17.192897 2012 03 310 302 19.933128 20.13913 20.014399 0.04951 20.002467 2012 04 310 302 24.054134 24.295033 24.213911 0.048413 24.221983 2012 05 310 302 25.927872 26.274355 26.049851 0.077443 26.028403 2012 06 310 302 28.200367 29.016834 28.671121 0.236716 28.706467 2012 07 310 302 28.696548 29.309547 29.057915 0.142225 29.081 2012 08 310 302 28.352226 29.407904 28.87625 0.286364 28.875064 2012 09 310 302 28.032999 28.631067 28.366497 0.179852 28.388 2012 10 310 302 26.312065 26.761614 26.532712 0.101368 26.542161 2012 11 310 302 22.359667 23.117399 22.687351 0.194755 22.633117 2012 12 310 302 19.998032 20.708902 20.325751 0.212958 20.270709 2013 01 310 302 18.753967 18.938419 18.838904 0.037789 18.83358 2013 02 310 302 17.417572 17.835285 17.558841 0.123275 17.515518 2013 03 310 302 18.021645 18.355162 18.213306 0.07499 18.223516 2013 04 310 302 20.294867 20.555433 20.430154 0.063824 20.431067 2013 05 310 302 23.472677 23.681871 23.550357 0.047717 23.545791 2013 06 310 302 27.363033 28.246733 27.730332 0.257433 27.639267 2013 07 310 302 27.644386 28.536903 28.049582 0.288032 28.030532 2013 08 310 302 28.065033 28.723387 28.316668 0.172589 28.269194 2013 09 310 302 29.275034 29.453833 29.389598 0.029796 29.389266 2013 10 310 302 26.635612 27.29529 26.981634 0.149976 27.002113 2013 11 310 302 22.772034 22.945499 22.882204 0.032224 22.886201 2013 12 310 302 18.13142 19.644064 19.004402 0.402952 19.120161 2014 01 310 302 16.493645 17.662903 17.203421 0.295061 17.301645 2014 02 310 302 15.292607 16.782143 16.156871 0.431535 16.281197 2014 03 310 302 16.277258 16.813419 16.503239 0.15011 16.471855 2014 04 310 302 19.900366 20.3529 20.122847 0.115103 20.08365 2014 05 310 302 23.141356 23.561516 23.323346 0.110323 23.35071 2014 06 310 302 26.975599 27.776667 27.350918 0.223489 27.304733 2014 07 310 302 27.192936 28.338581 27.628672 0.336969 27.534226 2014 08 310 302 27.552097 28.383484 27.836198 0.242436 27.717516 2014 09 310 302 28.7894 29.134033 28.978566 0.09302 28.979816 2014 10 310 302 26.648226 27.019936 26.85762 0.093839 26.837049 2014 11 310 302 22.273466 23.112 22.663045 0.238649 22.624934 2014 12 310 302 18.51729 19.495451 18.913716 0.275945 18.845033 2015 01 310 302 18.534452 19.249388 18.83484 0.197111 18.788918 2015 02 310 302 17.315393 17.796215 17.520913 0.127121 17.481572 2015 03 310 302 18.055967 18.236612 18.144192 0.046608 18.144693 2015 04 310 302 21.884567 22.105667 21.979266 0.067375 21.951966 2015 05 310 302 25.257904 25.66258 25.539186 0.088969 25.569129 2015 06 310 302 28.5672 29.180267 28.921956 0.187869 28.976917 2015 07 310 302 26.912258 27.304483 27.040099 0.099737 27.020759 2015 08 310 302 28.213354 29.151711 28.623126 0.281555 28.537193 2015 09 310 302 28.971399 29.234867 29.138272 0.066799 29.1529 2015 10 310 302 26.579096 27.158773 26.834746 0.143918 26.795241 2015 11 310 302 22.932034 23.2481 23.073544 0.069544 23.07095 2015 12 310 302 19.449839 20.499548 19.87495 0.307923 19.7825 2016 01 310 302 16.422678 16.784 16.641102 0.066943 16.642403 2016 02 310 302 17.23431 17.691311 17.439832 0.124506 17.4165 2016 03 310 302 19.697548 19.981773 19.820163 0.089769 19.809887 2016 04 310 302 21.9632 22.339733 22.130739 0.104228 22.10975 2016 05 310 302 25.565001 26.094517 25.937218 0.134634 25.922758 2016 06 310 302 27.902834 28.527933 28.25664 0.176777 28.253817 2016 07 310 302 27.242838 28.278257 27.723532 0.337946 27.698049 2016 08 310 302 28.217064 29.542967 28.896632 0.414225 28.876226 2016 09 310 302 30.099367 30.377434 30.274208 0.082068 30.285967 2016 10 310 302 27.190645 27.740419 27.512412 0.114339 27.511532 2016 11 310 302 23.757799 24.296101 23.969846 0.137949 23.921516 2016 12 310 302 20.295872 20.835773 20.501712 0.14247 20.451016 2017 01 310 302 17.537291 18.156162 17.828136 0.157918 17.85392 2017 02 310 302 18.653929 18.993071 18.808134 0.084193 18.798553 2017 03 310 302 20.131935 20.342096 20.252618 0.047582 20.255806 2017 04 310 302 23.406633 23.5798 23.487384 0.063466 23.455167 2017 05 310 302 25.286226 25.522709 25.387176 0.065485 25.385452 2017 06 310 302 28.2817 29.018368 28.747357 0.181833 28.800716 2017 07 310 302 28.759903 29.632839 29.23258 0.250771 29.237339 2017 08 310 302 28.057646 29.048645 28.529285 0.289053 28.474597 2017 09 310 302 28.192066 28.448133 28.329861 0.055334 28.3305 2017 10 310 302 26.85387 27.16 26.992004 0.077092 26.968404 2017 11 310 302 23.336201 24.181166 23.746924 0.219731 23.729533 2017 12 310 302 19.205097 19.86442 19.502778 0.159635 19.473984 2018 01 310 302 15.788129 16.327257 16.018816 0.116028 16.001984 2018 02 310 302 17.020679 18.176107 17.636346 0.320824 17.722018 2018 03 310 302 20.162645 20.507387 20.328984 0.104193 20.355194 2018 04 310 302 22.032667 22.407999 22.22664 0.111257 22.195316 2018 05 310 302 25.849548 26.529968 26.211934 0.181699 26.259081 2018 06 310 302 27.152166 27.920534 27.489032 0.232327 27.422067 2018 07 310 302 27.445032 27.803871 27.548905 0.09772 27.511081 2018 08 310 302 28.025614 28.449064 28.204156 0.095261 28.194742 2018 09 310 302 29.148067 29.382433 29.258877 0.05971 29.245033 2018 10 310 302 26.742388 27.267485 27.053461 0.133616 27.096323 2018 11 310 302 22.510866 23.222334 22.913743 0.180271 22.906051 2018 12 310 302 17.541388 18.228678 17.856085 0.173737 17.801517 2019 01 310 302 15.931774 16.727386 16.305429 0.216615 16.272275 2019 02 310 302 16.106108 16.371857 16.232879 0.056896 16.227696 2019 03 310 302 18.531935 18.818968 18.64328 0.060385 18.633225 2019 04 310 302 21.567333 21.738966 21.650637 0.047332 21.632333 2019 05 310 302 25.154484 25.533484 25.400454 0.086946 25.427306 2019 06 310 302 28.673334 29.406 29.166982 0.189197 29.247867 2019 07 310 302 28.213581 29.222225 28.70632 0.30294 28.684484 2019 08 310 302 28.598387 29.316257 28.920314 0.178863 28.893048 2019 09 310 302 29.593334 29.920033 29.715349 0.052596 29.715533 2019 10 310 302 26.758419 27.222677 26.969038 0.128239 26.938097 2019 11 310 302 20.856434 21.567966 21.297731 0.200298 21.349833 2019 12 310 302 17.813032 18.249613 18.053132 0.089826 18.059146 2020 01 310 302 17.264225 17.849743 17.515492 0.13786 17.494048 2020 02 310 302 16.320276 17.164345 16.728011 0.215709 16.731982 2020 03 310 302 20.053162 20.282904 20.141624 0.045751 20.142661 2020 04 310 302 23.477533 24.1378 23.833201 0.190571 23.834599 2020 05 310 302 26.12771 26.651258 26.39876 0.121869 26.369307 2020 06 310 302 28.650801 28.930799 28.77961 0.065798 28.767833 2020 07 310 302 29.235903 29.723097 29.511791 0.087751 29.507887 2020 08 310 302 29.370935 30.144548 29.823451 0.195967 29.871516 2020 09 310 302 28.7006 28.947433 28.848025 0.050606 28.8561 2020 10 310 302 26.339613 26.741226 26.533255 0.129497 26.491178 2020 11 310 302 22.997433 23.402767 23.233362 0.121769 23.208384 2020 12 310 302 18.800064 19.307549 19.035671 0.106957 19.031274 2021 01 310 302 15.936807 17.125225 16.507294 0.291162 16.487886 2021 02 310 302 15.633654 17.729038 16.669344 0.654256 16.655539 2021 03 310 302 17.783226 19.067677 18.597085 0.347121 18.718274 2021 04 310 302 21.837 22.813499 22.450735 0.244467 22.51895 2021 05 310 302 25.491741 26.305548 25.981182 0.186397 25.998129 2021 06 310 302 28.645901 29.1709 28.921663 0.116603 28.925016 2021 07 310 302 29.233032 29.676805 29.49369 0.096308 29.505145 2021 08 310 302 29.936935 30.655193 30.394492 0.172508 30.437371 2021 09 310 302 29.208366 29.487734 29.36457 0.090148 29.400283 2021 10 310 302 26.93429 27.583902 27.239054 0.176298 27.193888 2021 11 310 302 22.454166 23.431334 22.865075 0.243248 22.796834 2021 12 310 302 20.738806 21.362741 21.107081 0.173052 21.118258 2022 01 310 302 18.481451 20.017225 19.249798 0.4524 19.213144 2022 02 310 302 13.701357 14.675428 14.093667 0.228858 14.044714 2022 03 310 302 16.109646 16.448065 16.255087 0.078558 16.244387 2022 04 310 302 22.013933 22.285233 22.151229 0.084488 22.162367 2022 05 310 302 26.038677 26.73929 26.393783 0.198994 26.401758 2022 06 310 302 27.776001 28.416367 28.128113 0.170857 28.128284 2022 07 310 302 28.559225 29.506193 29.06659 0.25017 29.109565 2022 08 310 302 29.011032 29.856903 29.44435 0.232971 29.432791 2022 09 310 302 29.561501 29.740067 29.636923 0.040355 29.632684 2022 10 310 302 26.536581 27.122162 26.878505 0.176942 26.905726 2022 11 310 302 22.720793 23.492001 23.00695 0.219937 22.901397 2022 12 310 302 17.736517 18.705097 18.161009 0.243536 18.100435 2023 01 310 302 16.214096 16.64271 16.384431 0.095678 16.369951 2023 02 310 302 15.810286 16.236464 15.969263 0.098228 15.952928 2023 03 310 302 20.754904 21.321354 21.086497 0.145395 21.122984 2023 04 310 302 22.818518 23.50507 23.252479 0.155372 23.280845 2023 05 310 302 26.266001 26.495193 26.396926 0.056191 26.407032 2023 06 310 302 29.174101 29.768232 29.567237 0.145254 29.606183 2023 07 310 302 28.423967 29.520161 28.882303 0.250133 28.845887 2023 08 310 302 29.337872 30.115162 29.748604 0.181213 29.77029 2023 09 310 302 30.193899 30.501801 30.408189 0.068092 30.431684 2023 10 310 302 26.825356 27.642548 27.245576 0.223896 27.198709 2023 11 310 302 21.826468 22.927366 22.280601 0.312109 22.191366 2023 12 310 302 18.788668 19.721899 19.291185 0.237191 19.267568