Year Month Count Valid Min Max Mean Stdev Median 2007 01 919 837 20.339581 21.232775 20.931312 0.214617 20.966387 2007 02 919 837 17.779465 18.625143 18.350243 0.192808 18.365749 2007 03 919 837 19.789614 20.900871 20.500482 0.149167 20.510485 2007 04 919 837 22.0581 23.044033 22.758969 0.12177 22.779934 2007 05 919 837 24.64258 25.533386 25.15935 0.142707 25.144871 2007 06 919 837 27.469 28.374933 28.040905 0.164467 28.019966 2007 07 919 837 30.244774 30.925032 30.623523 0.215499 30.67013 2007 08 919 837 30.425613 30.903162 30.707574 0.124347 30.742968 2007 09 919 837 29.423134 29.970766 29.717819 0.125087 29.730433 2007 10 919 837 27.387129 27.899097 27.721564 0.115044 27.750162 2007 11 919 837 22.448433 23.065933 22.880204 0.155473 22.919067 2007 12 919 837 21.618387 22.52042 22.207348 0.214619 22.204935 2008 01 919 837 19.150806 19.713161 19.460574 0.128516 19.472097 2008 02 919 837 20.074034 21.192896 20.708228 0.208674 20.722103 2008 03 919 837 20.344936 21.342968 20.928367 0.130333 20.924162 2008 04 919 837 23.051634 23.799101 23.490801 0.150127 23.494267 2008 05 919 837 26.314161 26.886354 26.541943 0.112627 26.523418 2008 06 919 837 29.237434 29.627634 29.447381 0.108037 29.469534 2008 07 919 837 29.277065 29.878775 29.609492 0.133899 29.621485 2008 08 919 837 29.474773 30.027258 29.802791 0.110884 29.794483 2008 09 919 837 28.368433 28.884834 28.647354 0.103583 28.663166 2008 10 919 837 25.984936 26.540903 26.314338 0.116466 26.329645 2008 11 919 837 21.168633 21.823133 21.61527 0.156163 21.6409 2008 12 919 837 19.212999 20.006453 19.742711 0.173166 19.750839 2009 01 919 837 18.237741 19.279613 18.904913 0.207919 18.885775 2009 02 919 837 16.545107 17.499357 17.175585 0.2288 17.210392 2009 03 919 837 18.942806 20.050741 19.592738 0.182561 19.574709 2009 04 919 837 22.869833 23.653366 23.209315 0.161667 23.195499 2009 05 919 837 26.667807 27.05629 26.864661 0.09686 26.889612 2009 06 919 837 29.080133 29.578466 29.318966 0.106499 29.3606 2009 07 919 837 29.964226 30.476322 30.227556 0.123437 30.253033 2009 08 919 837 30.219999 30.708 30.465342 0.123198 30.473742 2009 09 919 837 29.722099 30.300167 30.046192 0.150149 30.094967 2009 10 919 837 28.074549 28.682259 28.416949 0.18435 28.419033 2009 11 919 837 23.457867 24.108566 23.860571 0.156651 23.874567 2009 12 919 837 20.704775 21.502581 21.091048 0.218483 21.078161 2010 01 919 837 17.539259 18.487162 18.123566 0.184472 18.126451 2010 02 919 837 15.739285 16.876179 16.391726 0.242251 16.386929 2010 03 919 837 15.858613 16.873741 16.403966 0.222926 16.410387 2010 04 919 837 21.259333 22.352467 22.014891 0.189441 22.049168 2010 05 919 837 26.606323 27.378033 27.096728 0.158671 27.09058 2010 06 919 837 29.979433 30.3501 30.221348 0.078694 30.216101 2010 07 919 837 29.484516 29.729097 29.635946 0.042284 29.644775 2010 08 919 837 30.447063 30.750967 30.619213 0.069641 30.613806 2010 09 919 837 29.063101 29.584 29.306586 0.128599 29.307833 2010 10 919 837 25.421936 25.87929 25.680898 0.09902 25.685354 2010 11 919 837 22.616333 23.170467 22.988409 0.129316 23.011734 2010 12 919 837 17.745193 18.571001 18.232381 0.198142 18.253807 2011 01 919 837 15.394871 16.855162 16.354966 0.257856 16.356968 2011 02 919 837 17.448107 18.642929 18.137957 0.176695 18.13518 2011 03 919 837 20.640839 21.673903 21.237766 0.17583 21.247677 2011 04 919 837 25.501104 26.352379 25.893847 0.163015 25.858862 2011 05 919 837 27.326902 27.864967 27.63802 0.139126 27.680677 2011 06 919 837 29.293667 29.798967 29.563691 0.131973 29.588966 2011 07 919 837 30.018 30.435354 30.195621 0.092706 30.195904 2011 08 919 837 30.373096 30.889774 30.649313 0.119793 30.651581 2011 09 919 837 29.427166 29.818399 29.645003 0.104037 29.648666 2011 10 919 837 25.345161 26.120646 25.788823 0.167365 25.806581 2011 11 919 837 21.929333 22.690567 22.3637 0.154115 22.333233 2011 12 919 837 20.229807 21.119936 20.819103 0.214253 20.823097 2012 01 919 837 18.712677 19.444677 19.202734 0.200239 19.242355 2012 02 919 837 19.743656 20.711275 20.307322 0.235809 20.278103 2012 03 919 837 22.980419 23.636322 23.419772 0.126126 23.468515 2012 04 919 837 24.382799 24.851799 24.620938 0.118956 24.641634 2012 05 919 837 26.939678 27.699741 27.496962 0.141544 27.531452 2012 06 919 837 28.3589 28.815533 28.678248 0.099512 28.657934 2012 07 919 837 29.75713 30.206291 30.014342 0.118643 30.018064 2012 08 919 837 30.199162 30.607903 30.456509 0.101127 30.492838 2012 09 919 837 28.729933 29.339067 29.014466 0.177604 28.986334 2012 10 919 837 26.582678 27.150999 26.943638 0.124724 26.970839 2012 11 919 837 21.091333 21.711466 21.480339 0.132669 21.515966 2012 12 919 837 20.433678 21.061838 20.827554 0.149179 20.810452 2013 01 919 837 20.134129 21.110291 20.789288 0.229821 20.80829 2013 02 919 837 19.329857 20.412285 19.977878 0.243776 20.030071 2013 03 919 837 18.31987 19.369581 18.913699 0.182473 18.946194 2013 04 919 837 22.923567 24.053534 23.696139 0.172334 23.709 2013 05 919 837 25.959614 26.534388 26.25491 0.082298 26.245613 2013 06 919 837 28.528866 29.029266 28.853473 0.139526 28.910067 2013 07 919 837 29.154419 29.483259 29.350854 0.075496 29.365194 2013 08 919 837 30.035709 30.474419 30.246968 0.111137 30.242483 2013 09 919 837 29.0716 29.612133 29.296129 0.113636 29.282299 2013 10 919 837 26.889065 27.594194 27.267576 0.155502 27.290323 2013 11 919 837 23.191334 24.016033 23.738401 0.207076 23.756933 2013 12 919 837 21.045517 21.942741 21.593974 0.222416 21.609419 2014 01 919 837 18.188969 19.329613 18.72278 0.264603 18.711452 2014 02 919 837 18.905001 20.594572 19.856586 0.304477 19.864607 2014 03 919 837 20.859259 22.133774 21.522159 0.243154 21.498806 2014 04 919 837 23.030367 23.815666 23.563062 0.117831 23.5721 2014 05 919 837 26.493387 27.035645 26.840849 0.088932 26.845322 2014 06 919 837 28.789368 29.133966 28.986886 0.113682 29.008133 2014 07 919 837 30.332773 31.022774 30.715868 0.185564 30.747322 2014 08 919 837 30.552355 31.239935 30.940837 0.165193 30.97171 2014 09 919 837 29.375366 29.9093 29.620885 0.112154 29.618767 2014 10 919 837 26.33358 27.067839 26.75305 0.156304 26.752064 2014 11 919 837 21.052834 21.950899 21.645238 0.197485 21.684534 2014 12 919 837 18.703259 19.569258 19.31449 0.189688 19.318258 2015 01 919 837 19.013678 19.975548 19.586403 0.205513 19.606419 2015 02 919 837 16.573429 17.629536 17.187783 0.221874 17.184715 2015 03 919 837 21.834259 23.268452 22.741376 0.244388 22.774065 2015 04 919 837 25.512699 26.414066 26.133064 0.15219 26.138901 2015 05 919 837 27.415258 27.814259 27.637874 0.108926 27.676613 2015 06 919 837 29.546432 29.845699 29.741885 0.057275 29.747232 2015 07 919 837 29.964355 30.502871 30.261423 0.086368 30.266903 2015 08 919 837 30.062902 30.721806 30.393118 0.174769 30.373774 2015 09 919 837 29.547434 29.9834 29.750497 0.106553 29.743433 2015 10 919 837 26.469097 27.164677 26.847265 0.135539 26.841516 2015 11 919 837 24.948534 25.844 25.468162 0.192059 25.501034 2015 12 919 837 22.380711 23.135902 22.87781 0.192148 22.920225 2016 01 919 837 18.766001 19.975677 19.484736 0.281473 19.512548 2016 02 919 837 17.201483 18.128241 17.882076 0.196599 17.95562 2016 03 919 837 20.298677 21.380806 20.809308 0.221859 20.778162 2016 04 919 837 23.8302 24.717733 24.338538 0.157487 24.330633 2016 05 919 837 26.392355 27.195936 26.821097 0.113354 26.817097 2016 06 919 837 29.234699 29.567533 29.393219 0.085231 29.4006 2016 07 919 837 30.710646 31.047806 30.868415 0.075092 30.861 2016 08 919 837 30.071032 30.458162 30.289982 0.110325 30.321419 2016 09 919 837 29.556601 29.875566 29.757458 0.082318 29.787001 2016 10 919 837 26.068743 26.524225 26.313156 0.073333 26.312935 2016 11 919 837 21.810133 22.576967 22.343982 0.146883 22.373867 2016 12 919 837 21.202097 22.275129 21.899743 0.255174 21.903774 2017 01 919 837 19.313452 20.238903 19.946056 0.202638 19.989452 2017 02 919 837 20.019501 21.016857 20.590618 0.222043 20.608999 2017 03 919 837 20.875677 21.654936 21.304729 0.189608 21.288162 2017 04 919 837 23.496134 23.956133 23.759009 0.068208 23.7423 2017 05 919 837 26.572548 27.06642 26.881833 0.125493 26.870356 2017 06 919 837 28.708967 29.071966 28.945195 0.079936 28.974199 2017 07 919 837 30.161226 30.747999 30.5215 0.151247 30.562 2017 08 919 837 30.48942 31.043259 30.804418 0.157608 30.843225 2017 09 919 837 29.042433 29.560301 29.320119 0.14609 29.324467 2017 10 919 837 26.957355 27.539968 27.271485 0.120064 27.275227 2017 11 919 837 22.436167 23.258934 22.976136 0.179501 22.9741 2017 12 919 837 20.909742 22.014065 21.648841 0.267187 21.659098 2018 01 919 837 16.078903 17.608065 17.089074 0.379107 17.180193 2018 02 919 837 20.324179 21.237679 20.814506 0.177999 20.818287 2018 03 919 837 20.671968 21.257484 20.881069 0.11187 20.845226 2018 04 919 837 23.813633 24.998466 24.529171 0.186341 24.523933 2018 05 919 837 25.333452 26.188225 25.798453 0.175848 25.736258 2018 06 919 837 29.505001 29.787567 29.641753 0.085086 29.641533 2018 07 919 837 30.267807 30.784742 30.567334 0.121481 30.585773 2018 08 919 837 30.024452 30.624548 30.206611 0.112906 30.196419 2018 09 919 837 29.6901 29.9862 29.851089 0.067223 29.858734 2018 10 919 837 27.715935 28.037775 27.827933 0.073068 27.803709 2018 11 919 837 24.085766 24.908934 24.608146 0.207355 24.631933 2018 12 919 837 18.842129 20.172451 19.757948 0.279977 19.82984 2019 01 919 837 17.957388 19.094967 18.705166 0.283777 18.730806 2019 02 919 837 19.634285 20.878357 20.376937 0.279299 20.425358 2019 03 919 837 21.735096 22.683935 22.195958 0.15613 22.150549 2019 04 919 837 24.174868 24.837 24.609968 0.105449 24.596067 2019 05 919 837 27.476807 27.94758 27.742055 0.083154 27.750355 2019 06 919 837 29.794533 30.376467 30.153897 0.134997 30.1567 2019 07 919 837 29.704742 30.184807 30.040387 0.111192 30.07342 2019 08 919 837 29.740644 30.306452 30.12024 0.140586 30.163807 2019 09 919 837 29.1521 29.5931 29.40074 0.092877 29.401634 2019 10 919 837 27.563581 28.230452 27.959819 0.149559 27.96829 2019 11 919 837 23.610634 24.906534 24.466124 0.274854 24.541666 2019 12 919 837 20.417967 21.578838 21.164907 0.261992 21.175323 2020 01 919 837 19.517645 20.305548 20.045135 0.182162 20.085838 2020 02 919 837 19.46431 20.643448 20.173442 0.248157 20.193138 2020 03 919 837 22.144871 23.500452 22.969496 0.202091 22.964258 2020 04 919 837 26.1061 27.256701 26.672627 0.153133 26.641701 2020 05 919 837 26.191065 26.944485 26.622178 0.109507 26.617128 2020 06 919 837 29.533867 30.071899 29.946956 0.093243 29.966534 2020 07 919 837 30.804033 31.041033 30.916401 0.046554 30.917999 2020 08 919 837 30.673935 30.829967 30.765512 0.034353 30.769451 2020 09 919 837 29.448767 29.946066 29.713349 0.125531 29.725567 2020 10 919 837 27.869549 28.203838 28.05347 0.093312 28.06584 2020 11 919 837 24.254333 24.7834 24.615424 0.131035 24.642 2020 12 919 837 19.466032 20.256323 19.902035 0.168692 19.935289 2021 01 919 837 17.743065 19.056322 18.415128 0.214345 18.405128 2021 02 919 837 19.614346 20.931923 20.3766 0.219071 20.349962 2021 03 919 837 21.756226 23.381483 22.447056 0.236045 22.426516 2021 04 919 837 24.446466 25.816133 24.985504 0.190641 24.961634 2021 05 919 837 27.244581 27.785032 27.426102 0.108001 27.411709 2021 06 919 837 28.878599 29.4601 29.165842 0.090135 29.1581 2021 07 919 837 29.57929 29.961258 29.735541 0.117127 29.681129 2021 08 919 837 30.296227 30.605516 30.42609 0.064098 30.428968 2021 09 919 837 29.699133 30.143133 29.86389 0.109228 29.865667 2021 10 919 837 27.771097 28.324322 28.001283 0.118496 27.996065 2021 11 919 837 21.914867 22.8981 22.483249 0.220188 22.525267 2021 12 919 837 21.385872 22.666807 22.113821 0.221671 22.114096 2022 01 919 837 19.421064 20.330677 19.906753 0.21142 19.92 2022 02 919 837 18.029249 20.196678 19.23833 0.368673 19.23982 2022 03 919 837 21.76729 23.055387 22.535508 0.207903 22.563419 2022 04 919 837 24.1047 24.784901 24.433039 0.113099 24.388166 2022 05 919 837 27.399548 27.958355 27.677546 0.106163 27.65258 2022 06 919 837 29.339333 29.670834 29.530434 0.087905 29.549166 2022 07 919 837 30.595194 31.056644 30.799676 0.079836 30.785774 2022 08 919 837 30.033903 30.749033 30.42332 0.172505 30.454807 2022 09 919 837 29.843067 30.6 30.17394 0.173216 30.191067 2022 10 919 837 25.446451 26.249453 25.906617 0.171725 25.933935 2022 11 919 837 24.055897 24.890759 24.593379 0.216896 24.63238 2022 12 919 837 21.23671 21.992903 21.653023 0.192326 21.655743 2023 01 919 837 18.985291 19.827644 19.482043 0.208049 19.463419 2023 02 919 837 21.088751 22.868 22.122168 0.277453 22.135357 2023 03 919 837 23.530226 24.674259 24.15468 0.167711 24.144516 2023 04 919 837 25.845242 26.98938 26.412674 0.163803 26.395449 2023 05 919 837 27.368387 28.239902 27.802692 0.139302 27.793194 2023 06 919 837 29.504866 30.2174 29.804035 0.174953 29.8524 2023 07 919 837 31.278162 31.919226 31.530862 0.162628 31.501324 2023 08 919 837 31.245483 31.48 31.362203 0.049851 31.363323 2023 09 919 837 29.563299 30.203934 29.865644 0.138583 29.886999 2023 10 919 837 26.138065 27.030096 26.656192 0.188544 26.693548 2023 11 919 837 23.0529 24.012367 23.649694 0.223921 23.6691 2023 12 919 837 18.967466 20.0112 19.536907 0.256211 19.573833