Year Month Count Valid Min Max Mean Stdev Median 2007 01 526 485 17.102161 18.318323 17.719033 0.25854 17.702549 2007 02 526 485 17.213465 18.027035 17.70108 0.172685 17.710751 2007 03 526 485 19.165451 19.609194 19.417669 0.104632 19.412678 2007 04 526 485 21.272499 21.455101 21.345049 0.044002 21.334667 2007 05 526 485 24.981773 25.261936 25.09671 0.070275 25.087517 2007 06 526 485 28.205566 28.514067 28.349431 0.071252 28.3351 2007 07 526 485 28.122 28.290548 28.196332 0.038035 28.190098 2007 08 526 485 30.137386 30.439709 30.321622 0.074136 30.337582 2007 09 526 485 29.165501 29.510567 29.314924 0.060576 29.312866 2007 10 526 485 26.60387 27.104839 26.879793 0.104408 26.922129 2007 11 526 485 21.918734 22.493534 22.251362 0.110889 22.279867 2007 12 526 485 18.644484 19.511969 19.210229 0.189149 19.251677 2008 01 526 485 16.963646 18.174871 17.656543 0.242186 17.673935 2008 02 526 485 17.399965 18.150482 17.869912 0.18034 17.915552 2008 03 526 485 18.102161 18.690775 18.411462 0.118076 18.432806 2008 04 526 485 21.845966 22.2372 22.064816 0.073098 22.076834 2008 05 526 485 25.782806 25.919096 25.847888 0.029112 25.846806 2008 06 526 485 28.965334 29.200333 29.058938 0.055438 29.046534 2008 07 526 485 28.91 29.432613 29.257164 0.109174 29.261581 2008 08 526 485 28.554806 29.180775 28.954356 0.132489 28.967064 2008 09 526 485 27.9167 28.124866 28.011358 0.046865 28.009466 2008 10 526 485 24.646097 25.200903 24.935535 0.106996 24.94787 2008 11 526 485 21.177567 21.888533 21.513523 0.135521 21.5007 2008 12 526 485 18.974516 20.265709 19.687678 0.263302 19.691032 2009 01 526 485 17.66687 19.002613 18.351635 0.279189 18.335968 2009 02 526 485 17.033607 18.104679 17.572344 0.24726 17.556286 2009 03 526 485 18.535387 18.99258 18.83684 0.099945 18.854774 2009 04 526 485 21.0669 21.441833 21.322699 0.086185 21.339367 2009 05 526 485 25.949259 26.128193 26.035919 0.040624 26.036709 2009 06 526 485 28.554333 28.853001 28.764379 0.054786 28.772266 2009 07 526 485 28.202967 28.849581 28.639415 0.14139 28.668676 2009 08 526 485 29.735613 30.246807 30.10249 0.104415 30.144773 2009 09 526 485 28.741699 29.132 28.927967 0.092864 28.939034 2009 10 526 485 25.872322 26.404709 26.2306 0.124146 26.266613 2009 11 526 485 20.6357 21.326067 21.072489 0.164841 21.128033 2009 12 526 485 17.634356 18.848322 18.300561 0.24416 18.304386 2010 01 526 485 14.328838 15.418258 14.981021 0.217411 14.99671 2010 02 526 485 14.272357 15.19525 14.856137 0.180461 14.883393 2010 03 526 485 15.979806 16.34013 16.22851 0.085277 16.262678 2010 04 526 485 21.112034 21.389933 21.260584 0.052773 21.254267 2010 05 526 485 25.974258 26.190805 26.137642 0.048089 26.153645 2010 06 526 485 29.296801 29.542101 29.429902 0.051773 29.4203 2010 07 526 485 29.848806 29.997774 29.932034 0.039954 29.940323 2010 08 526 485 30.519451 30.948355 30.804094 0.070452 30.797709 2010 09 526 485 29.118299 29.380066 29.239876 0.057615 29.240299 2010 10 526 485 26.030323 26.481968 26.226415 0.098404 26.217194 2010 11 526 485 21.651367 22.2124 21.972856 0.114416 21.992466 2010 12 526 485 17.809162 18.794613 18.362571 0.197391 18.364515 2011 01 526 485 16.115355 17.601936 16.848719 0.323804 16.821451 2011 02 526 485 15.623821 16.724394 16.158675 0.233454 16.119608 2011 03 526 485 19.102903 19.37542 19.271185 0.073791 19.283773 2011 04 526 485 22.592827 23.005379 22.789852 0.115568 22.786621 2011 05 526 485 25.185387 25.468258 25.352462 0.073812 25.385515 2011 06 526 485 28.681833 29.151567 29.023794 0.095777 29.051733 2011 07 526 485 29.975775 30.581322 30.416438 0.10641 30.451193 2011 08 526 485 30.235258 30.811871 30.652595 0.101157 30.676516 2011 09 526 485 28.928699 29.273899 29.029866 0.067401 29.010967 2011 10 526 485 25.59013 25.962709 25.747096 0.063121 25.729807 2011 11 526 485 21.254101 21.872034 21.60765 0.122238 21.627966 2011 12 526 485 17.993484 19.261709 18.712713 0.254472 18.726484 2012 01 526 485 16.789612 17.70513 17.383425 0.193336 17.428064 2012 02 526 485 16.538828 17.329414 17.056426 0.170352 17.108208 2012 03 526 485 19.875935 20.352871 20.141928 0.128849 20.122549 2012 04 526 485 24.168966 24.337 24.226104 0.03374 24.2227 2012 05 526 485 26.504097 26.794388 26.610276 0.076526 26.575935 2012 06 526 485 28.977301 29.221167 29.09684 0.045415 29.089466 2012 07 526 485 29.396999 29.619644 29.478175 0.046659 29.472904 2012 08 526 485 29.945614 30.286581 30.102123 0.087679 30.094677 2012 09 526 485 28.465834 28.673666 28.568457 0.051435 28.572767 2012 10 526 485 25.654871 26.169483 25.871658 0.10528 25.835096 2012 11 526 485 21.401667 22.120367 21.826247 0.137888 21.849966 2012 12 526 485 18.974806 19.876032 19.570373 0.195647 19.626581 2013 01 526 485 17.206419 18.379839 17.881097 0.231111 17.903742 2013 02 526 485 16.394501 17.071072 16.878782 0.154419 16.928572 2013 03 526 485 17.049969 17.844936 17.417555 0.160456 17.416548 2013 04 526 485 20.0357 20.3314 20.219925 0.07773 20.241501 2013 05 526 485 23.608871 23.808323 23.710718 0.043193 23.707903 2013 06 526 485 28.5725 29.043266 28.888554 0.09684 28.920233 2013 07 526 485 28.774839 29.245935 29.050633 0.101759 29.067806 2013 08 526 485 29.056774 29.710581 29.403994 0.147496 29.417419 2013 09 526 485 29.143499 29.426733 29.245967 0.058699 29.233801 2013 10 526 485 25.784161 26.402096 26.030363 0.130068 26.001516 2013 11 526 485 21.893167 22.592466 22.314135 0.138863 22.332001 2013 12 526 485 18.415903 19.477741 19.143145 0.24733 19.22258 2014 01 526 485 16.366838 17.488581 17.0713 0.231189 17.114161 2014 02 526 485 16.20507 17.215857 16.859695 0.21085 16.893606 2014 03 526 485 16.592871 17.024258 16.910309 0.09357 16.944485 2014 04 526 485 20.295166 20.564466 20.484566 0.072693 20.510433 2014 05 526 485 23.436516 23.608969 23.493136 0.049205 23.473452 2014 06 526 485 27.8853 28.161467 28.015803 0.066106 28.008667 2014 07 526 485 29.053289 29.713678 29.424071 0.147123 29.453711 2014 08 526 485 29.068548 29.694839 29.46263 0.127557 29.487291 2014 09 526 485 28.688766 28.988966 28.854003 0.063481 28.861834 2014 10 526 485 25.919903 26.545485 26.200618 0.116715 26.18129 2014 11 526 485 20.692133 21.5881 21.137674 0.188732 21.1234 2014 12 526 485 17.260872 18.058807 17.733971 0.180221 17.788839 2015 01 526 485 17.345549 18.35113 17.969253 0.207374 18.006548 2015 02 526 485 16.011036 16.908571 16.491021 0.174824 16.484142 2015 03 526 485 17.366741 17.967871 17.766956 0.122722 17.800064 2015 04 526 485 21.891634 22.236866 22.105411 0.072085 22.116167 2015 05 526 485 25.527225 25.656548 25.608276 0.024371 25.609419 2015 06 526 485 29.042133 29.209499 29.134164 0.03463 29.135 2015 07 526 485 27.925419 28.767612 28.264965 0.183832 28.246677 2015 08 526 485 29.425871 30.132807 29.816043 0.18253 29.857548 2015 09 526 485 28.684534 28.920834 28.803663 0.055851 28.819099 2015 10 526 485 25.476677 26.214838 25.824919 0.149557 25.837517 2015 11 526 485 21.915466 22.7652 22.369983 0.164317 22.384132 2015 12 526 485 18.682259 19.567387 19.224155 0.202252 19.279194 2016 01 526 485 14.717936 16.128 15.518368 0.288573 15.561161 2016 02 526 485 16.058758 16.795551 16.555405 0.161572 16.614449 2016 03 526 485 19.075548 19.386484 19.285545 0.074616 19.308807 2016 04 526 485 22.2861 22.4951 22.417824 0.045844 22.4195 2016 05 526 485 25.656612 25.894291 25.795762 0.057172 25.810677 2016 06 526 485 28.799299 29.064966 28.911977 0.053227 28.901966 2016 07 526 485 29.210064 29.919613 29.568721 0.158721 29.561483 2016 08 526 485 29.982613 30.08671 30.038446 0.025194 30.03842 2016 09 526 485 29.913534 30.217867 30.091704 0.091154 30.114866 2016 10 526 485 26.723322 27.187677 26.932757 0.078669 26.937613 2016 11 526 485 22.7981 23.4494 23.178202 0.120165 23.184666 2016 12 526 485 19.284323 20.310516 19.895647 0.202337 19.926805 2017 01 526 485 17.425581 18.313999 18.035893 0.205821 18.101257 2017 02 526 485 18.009108 18.529285 18.383413 0.114026 18.419107 2017 03 526 485 19.836128 20.394129 20.164109 0.129382 20.158031 2017 04 526 485 23.318132 23.489201 23.396919 0.032686 23.395367 2017 05 526 485 25.212709 25.307032 25.261758 0.020163 25.262806 2017 06 526 485 28.744066 28.919666 28.812544 0.038049 28.806467 2017 07 526 485 30.122257 30.496645 30.341374 0.082465 30.339226 2017 08 526 485 29.626741 30.169743 29.976218 0.131303 29.989452 2017 09 526 485 28.076834 28.341633 28.192817 0.054584 28.1952 2017 10 526 485 26.463194 26.756388 26.579871 0.042749 26.578581 2017 11 526 485 22.286034 23.028767 22.693544 0.143657 22.7237 2017 12 526 485 17.539806 18.734936 18.223558 0.242702 18.262678 2018 01 526 485 14.595968 16.000517 15.557902 0.324974 15.656129 2018 02 526 485 17.751751 18.659714 18.389093 0.210564 18.4585 2018 03 526 485 19.959646 20.312033 20.221909 0.075461 20.244289 2018 04 526 485 21.769899 21.986967 21.852507 0.057446 21.831066 2018 05 526 485 26.461323 26.951677 26.767222 0.123374 26.799129 2018 06 526 485 28.424467 29.038334 28.821549 0.159942 28.860466 2018 07 526 485 28.434999 29.279097 28.840937 0.202267 28.823872 2018 08 526 485 29.02529 29.650354 29.405536 0.150768 29.41713 2018 09 526 485 29.044033 29.1714 29.084309 0.023121 29.081301 2018 10 526 485 26.062613 26.580936 26.322766 0.095773 26.328386 2018 11 526 485 20.754601 21.852467 21.290228 0.219815 21.2731 2018 12 526 485 16.281193 17.489548 17.049759 0.270967 17.129677 2019 01 526 485 14.236807 15.541742 14.937243 0.262227 14.959226 2019 02 526 485 15.404535 16.261393 16.007682 0.193053 16.069822 2019 03 526 485 17.76342 18.326902 18.1426 0.127034 18.18758 2019 04 526 485 21.223034 21.524233 21.408267 0.066051 21.4067 2019 05 526 485 25.605322 25.768517 25.666752 0.048576 25.652193 2019 06 526 485 29.363434 29.615334 29.533975 0.055546 29.547367 2019 07 526 485 29.404387 29.611387 29.518792 0.041403 29.530678 2019 08 526 485 29.969807 30.445162 30.264949 0.118763 30.28842 2019 09 526 485 29.761833 29.999199 29.850204 0.049913 29.842833 2019 10 526 485 26.196419 26.633581 26.414974 0.106732 26.437387 2019 11 526 485 18.957033 20.194599 19.686546 0.259589 19.744867 2019 12 526 485 16.458225 17.504644 17.141592 0.253328 17.232677 2020 01 526 485 16.00013 16.965258 16.585454 0.215697 16.649935 2020 02 526 485 14.762517 15.750724 15.361189 0.221612 15.415 2020 03 526 485 20.098839 20.446548 20.337561 0.091318 20.359161 2020 04 526 485 23.110067 23.422333 23.276645 0.07309 23.290501 2020 05 526 485 26.01758 26.490709 26.264042 0.097334 26.279161 2020 06 526 485 28.657633 28.830767 28.734432 0.030709 28.7306 2020 07 526 485 29.257517 29.941225 29.716559 0.143885 29.757387 2020 08 526 485 30.063194 30.376354 30.268639 0.057302 30.268484 2020 09 526 485 28.353399 28.732367 28.555244 0.088037 28.5742 2020 10 526 485 25.878193 26.130064 26.007213 0.059183 26.011032 2020 11 526 485 22.295601 22.680433 22.462594 0.078412 22.461933 2020 12 526 485 17.301775 18.323549 17.906066 0.201615 17.932871 2021 01 526 485 14.149516 15.529936 15.057998 0.327013 15.159225 2021 02 526 485 13.787885 14.650154 14.286386 0.207838 14.297462 2021 03 526 485 16.953419 17.889517 17.294018 0.182772 17.262774 2021 04 526 485 21.401066 22.230999 21.750482 0.206809 21.685833 2021 05 526 485 25.139162 25.69113 25.446897 0.124375 25.455452 2021 06 526 485 29.044933 29.319401 29.187848 0.049703 29.181101 2021 07 526 485 29.619452 29.917549 29.804113 0.074514 29.808355 2021 08 526 485 30.47216 30.728838 30.62809 0.043647 30.626259 2021 09 526 485 29.0313 29.182034 29.084987 0.032502 29.085367 2021 10 526 485 26.343323 26.653097 26.492501 0.074685 26.501741 2021 11 526 485 21.185667 22.020067 21.620913 0.164542 21.630867 2021 12 526 485 19.802645 20.503775 20.109984 0.164728 20.102259 2022 01 526 485 16.191162 17.571774 17.049696 0.287168 17.125065 2022 02 526 485 12.465322 13.340178 13.024047 0.200335 13.095393 2022 03 526 485 15.862806 16.560839 16.316935 0.160673 16.358032 2022 04 526 485 22.094166 22.2041 22.171315 0.027323 22.181299 2022 05 526 485 26.771322 27.074194 26.96944 0.048496 26.978065 2022 06 526 485 28.806801 29.173067 29.003048 0.089624 28.987167 2022 07 526 485 29.741386 30.201807 30.052249 0.087328 30.071323 2022 08 526 485 29.950291 30.162516 30.038267 0.039272 30.039064 2022 09 526 485 29.601 29.8543 29.729356 0.060923 29.713766 2022 10 526 485 25.700323 26.226065 25.944265 0.107081 25.937452 2022 11 526 485 21.88431 22.451138 22.198459 0.107561 22.206758 2022 12 526 485 16.33729 17.416515 17.02009 0.246975 17.097 2023 01 526 485 14.901452 16.122227 15.760308 0.287049 15.857323 2023 02 526 485 15.213036 15.70875 15.518718 0.114342 15.5475 2023 03 526 485 20.560968 21.224451 20.864784 0.152713 20.835354 2023 04 526 485 22.449656 22.823931 22.606773 0.083763 22.596207 2023 05 526 485 26.12429 26.579258 26.360914 0.109213 26.347193 2023 06 526 485 29.222166 29.9121 29.584481 0.172015 29.558968 2023 07 526 485 29.184387 30.516291 29.844672 0.339796 29.779484 2023 08 526 485 29.773806 30.663225 30.2654 0.221198 30.234968 2023 09 526 485 30.063066 30.512899 30.289623 0.103913 30.317667 2023 10 526 485 26.242451 26.622387 26.483595 0.088682 26.506451 2023 11 526 485 20.211134 21.110968 20.681485 0.199097 20.714067 2023 12 526 485 16.713966 17.857533 17.355795 0.227412 17.3787