YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 nan nan 0 2000 3 3.46958e+00 7.07793e-01 177 2000 4 5.82797e+00 1.03202e-01 64 2000 5 8.69429e+00 1.61611e+00 255 2000 6 1.30179e+01 1.70571e+00 126 2000 7 1.81673e+01 1.58039e+00 611 2000 8 1.91026e+01 1.60037e+00 384 2000 9 1.84015e+01 1.09012e+00 429 2000 10 1.34943e+01 7.63760e-01 405 2000 11 9.98029e+00 7.27920e-01 442 2000 12 7.13395e+00 1.91813e+00 385 2001 1 4.01818e+00 5.63171e-01 294 2001 2 3.24423e+00 2.48296e-01 320 2001 3 3.00568e+00 7.89002e-01 338 2001 4 5.03595e+00 1.18793e+00 391 2001 5 1.13846e+01 8.83558e-01 348 2001 6 1.51448e+01 8.97470e-01 147 2001 7 1.80856e+01 1.24396e+00 567 2001 8 1.94000e+01 1.28541e+00 348 2001 9 1.69468e+01 1.12639e+00 714 2001 10 1.21178e+01 5.62149e-01 433 2001 11 9.89514e+00 7.13680e-01 356 2001 12 8.28591e+00 8.52425e-01 438 2002 1 5.80450e+00 7.71511e-01 448 2002 2 4.02717e+00 7.52513e-01 300 2002 3 4.54269e+00 4.38997e-01 288 2002 4 7.08732e+00 1.36230e+00 340 2002 5 8.85288e+00 1.25641e+00 375 2002 6 1.32306e+01 4.91039e-01 256 2002 7 1.93174e+01 1.42655e+00 2091 2002 8 1.98342e+01 1.45003e+00 2011 2002 9 1.77189e+01 1.14854e+00 1455 2002 10 1.40838e+01 2.07389e+00 1870 2002 11 1.05490e+01 1.00674e+00 1735 2002 12 6.56791e+00 1.06545e+00 2127 2003 1 3.45948e+00 1.18943e+00 790 2003 2 1.64118e+00 1.02272e+00 433 2003 3 1.44530e+00 6.47559e-01 417 2003 4 3.49980e+00 1.32179e+00 685 2003 5 9.14153e+00 2.63331e+00 546 2003 6 1.42449e+01 2.79185e+00 695 2003 7 1.82969e+01 1.62411e+00 2014 2003 8 1.90143e+01 1.24929e+00 1388 2003 9 1.80769e+01 8.94080e-01 2106 2003 10 1.47857e+01 2.36309e+00 1767 2003 11 9.66037e+00 1.17368e+00 1257 2003 12 6.43971e+00 9.48676e-01 1549 2004 1 3.42542e+00 1.44261e+00 648 2004 2 1.19185e+00 4.88829e-01 629 2004 3 2.07682e+00 2.96514e-01 512 2004 4 4.65882e+00 1.48206e+00 786 2004 5 9.25977e+00 2.10013e+00 617 2004 6 1.42228e+01 2.31892e+00 1408 2004 7 1.74374e+01 1.63826e+00 1238 2004 8 1.83413e+01 1.44198e+00 1821 2004 9 1.65448e+01 1.69203e+00 1664 2004 10 1.39835e+01 1.19547e+00 1404 2004 11 1.04633e+01 1.20930e+00 2056 2004 12 7.63570e+00 1.03704e+00 1297 2005 1 4.16065e+00 1.76473e+00 453 2005 2 1.99018e+00 9.28940e-01 551 2005 3 2.03551e+00 6.46271e-01 1070 2005 4 6.08900e+00 1.42831e+00 1533 2005 5 8.07740e+00 1.55067e+00 599 2005 6 1.41063e+01 3.14627e+00 280 2005 7 1.87283e+01 1.53787e+00 1433 2005 8 1.95437e+01 1.75428e+00 1988 2005 9 1.79345e+01 1.63569e+00 2229 2005 10 1.27664e+01 1.73521e+00 1062 2005 11 1.01033e+01 9.73668e-01 1611 2005 12 6.83425e+00 1.25024e+00 1552 2006 1 4.68127e+00 7.36006e-01 1244 2006 2 3.42939e+00 1.12056e+00 672 2006 3 2.72543e+00 9.82320e-01 932 2006 4 5.76478e+00 1.41794e+00 1509 2006 5 9.73993e+00 2.05212e+00 823 2006 6 1.48434e+01 2.16506e+00 554 2006 7 1.83392e+01 1.79283e+00 975 2006 8 1.92493e+01 1.67308e+00 2409 2006 9 1.73352e+01 5.74043e-01 2153 2006 10 1.32604e+01 1.46256e+00 1854 2006 11 1.01432e+01 1.61311e+00 1166 2006 12 8.43781e+00 1.51497e+00 2007 2007 1 5.96633e+00 1.20180e+00 1010 2007 2 2.74422e+00 1.20623e+00 995 2007 3 3.08594e+00 9.76250e-01 1237 2007 4 4.33113e+00 1.42815e+00 978 2007 5 9.87582e+00 2.90662e+00 1508 2007 6 1.50702e+01 2.25241e+00 1341 2007 7 1.81415e+01 1.42486e+00 2064 2007 8 1.84503e+01 1.59998e+00 2251 2007 9 1.69984e+01 1.24437e+00 1849 2007 10 1.37725e+01 1.12335e+00 1694 2007 11 9.83149e+00 1.58751e+00 1237 2007 12 6.50308e+00 1.68917e+00 1264 2008 1 4.68333e+00 7.10858e-01 1279 2008 2 3.26538e+00 3.87900e-01 1011 2008 3 3.42053e+00 3.91705e-01 1198 2008 4 6.83300e+00 1.67792e+00 1216 2008 5 1.02981e+01 2.13292e+00 1381 2008 6 1.70201e+01 1.65545e+00 1332 2008 7 1.85105e+01 1.49512e+00 1747 2008 8 1.98370e+01 1.03103e+00 3492 2008 9 1.80308e+01 1.42266e+00 1813 2008 10 1.36729e+01 1.53735e+00 1667 2008 11 1.00985e+01 1.33636e+00 1445 2008 12 6.83470e+00 1.62401e+00 1270 2009 1 3.94722e+00 9.64088e-01 1370 2009 2 2.28068e+00 4.74653e-01 891 2009 3 2.34894e+00 1.26490e+00 967 2009 4 5.11899e+00 1.38136e+00 1338 2009 5 1.00539e+01 1.46184e+00 798 2009 6 1.33113e+01 1.77018e+00 566 2009 7 1.70581e+01 1.35735e+00 1958 2009 8 2.05411e+01 1.56676e+00 2009 2009 9 1.69816e+01 9.68233e-01 2361 2009 10 1.36616e+01 1.24540e+00 1482 2009 11 1.07576e+01 8.66429e-01 1420 2009 12 8.08710e+00 1.55360e+00 1785 2010 1 3.58086e+00 8.39711e-01 1093 2010 2 2.72167e+00 3.53774e-01 669 2010 3 3.40538e+00 9.69559e-01 1000 2010 4 7.92788e+00 7.88553e-01 1353 2010 5 1.24625e+01 2.78462e+00 1454 2010 6 1.61191e+01 2.22772e+00 1364 2010 7 2.04592e+01 1.79164e+00 2781 2010 8 1.90766e+01 1.40481e+00 1905 2010 9 1.75514e+01 1.26105e+00 2015 2010 10 1.37671e+01 1.38978e+00 2317 2010 11 1.02969e+01 8.76394e-01 1186 2010 12 6.87194e+00 1.35049e+00 1614 2011 1 4.98878e+00 8.21276e-01 1210 2011 2 3.07674e+00 9.49546e-01 1233 2011 3 3.30852e+00 5.56395e-01 1335 2011 4 4.65644e+00 7.40754e-01 814 2011 5 9.58101e+00 1.81050e+00 784 2011 6 1.56629e+01 1.94196e+00 1555 2011 7 2.01502e+01 1.41959e+00 2432 2011 8 1.96447e+01 1.24917e+00 1970 2011 9 1.62398e+01 1.12894e+00 1824 2011 10 1.49234e+01 1.28438e+00 1754 2011 11 1.10055e+01 1.25796e+00 1434 2011 12 8.63054e+00 1.29846e+00 1645 2012 1 6.44792e+00 7.86691e-01 1394 2012 2 4.61628e+00 9.82150e-01 1719 2012 3 4.53282e+00 1.48321e+00 606 2012 4 7.41016e+00 1.54659e+00 1994 2012 5 1.22776e+01 2.95680e+00 943 2012 6 1.63799e+01 1.84171e+00 1072 2012 7 2.09677e+01 1.23210e+00 2671 2012 8 2.10451e+01 1.20774e+00 2681 2012 9 1.79386e+01 1.51762e+00 2375 2012 10 1.38742e+01 9.54157e-01 2076 2012 11 1.04634e+01 1.42069e+00 1506 2012 12 8.56926e+00 7.87602e-01 1218 2013 1 5.84914e+00 8.29149e-01 1345 2013 2 3.64860e+00 7.28455e-01 1089 2013 3 4.03222e+00 4.48737e-01 1001 2013 4 6.24017e+00 2.39650e+00 1560 2013 5 1.11445e+01 1.70860e+00 1505 2013 6 1.57425e+01 2.87666e+00 1343 2013 7 2.14237e+01 2.07016e+00 1670 2013 8 2.00841e+01 1.57801e+00 2340 2013 9 1.64796e+01 1.36925e+00 1849 2013 10 1.45600e+01 1.45782e+00 2095 2013 11 1.01894e+01 1.26211e+00 1532 2013 12 6.81609e+00 1.27809e+00 1091 2014 1 4.31021e+00 1.07796e+00 956 2014 2 2.51243e+00 9.71473e-01 649 2014 3 3.01740e+00 3.43812e-01 583 2014 4 4.91880e+00 8.17622e-01 1459 2014 5 1.07262e+01 1.89374e+00 1076 2014 6 1.59667e+01 1.85385e+00 2003 2014 7 1.77611e+01 1.55415e+00 1764 2014 8 1.88322e+01 1.04525e+00 3022 2014 9 1.83603e+01 1.77704e+00 2167 2014 10 1.47307e+01 1.39224e+00 1526 2014 11 1.08983e+01 1.25682e+00 1195 2014 12 7.27007e+00 1.90542e+00 958 2015 1 5.13955e+00 1.30225e+00 1336 2015 2 2.18762e+00 1.12697e+00 399 2015 3 2.05213e+00 5.04396e-01 748 2015 4 4.41666e+00 1.36885e+00 906 2015 5 1.05682e+01 1.31745e+00 606 2015 6 1.42773e+01 2.18930e+00 908 2015 7 1.96029e+01 1.80573e+00 1939 2015 8 2.13143e+01 1.13123e+00 3124 2015 9 1.90303e+01 1.59497e+00 2067 2015 10 1.37368e+01 1.69131e+00 2102 2015 11 1.14606e+01 1.04010e+00 1588 2015 12 9.40352e+00 1.18911e+00 805 2016 1 7.17866e+00 1.65841e+00 1789 2016 2 4.48070e+00 1.15539e+00 847 2016 3 5.04737e+00 7.68942e-01 1092 2016 4 6.39961e+00 1.06738e+00 1980 2016 5 9.50551e+00 1.45377e+00 1120 2016 6 1.58107e+01 1.93557e+00 1811 2016 7 1.97861e+01 1.77520e+00 2243 2016 8 2.09513e+01 1.19909e+00 3187 2016 9 1.86749e+01 1.36665e+00 1824 2016 10 1.54300e+01 1.22845e+00 1670 2016 11 1.16732e+01 1.95075e+00 1439 2016 12 8.49175e+00 1.30119e+00 1973 2017 1 5.76293e+00 9.59458e-01 1340 2017 2 4.25878e+00 1.03090e+00 839 2017 3 3.97265e+00 4.45686e-01 1510 2017 4 5.99438e+00 1.52571e+00 947 2017 5 1.03264e+01 2.27501e+00 868 2017 6 1.32522e+01 2.42236e+00 738 2017 7 1.83792e+01 1.68558e+00 1882 2017 8 1.93819e+01 1.24975e+00 3113 2017 9 1.69670e+01 1.19943e+00 1259 2017 10 1.54724e+01 1.17040e+00 2043 2017 11 1.07347e+01 1.18641e+00 2109 2017 12 7.09936e+00 1.66811e+00 1113 2018 1 2.88176e+00 5.33455e-01 847 2018 2 2.83632e+00 5.10862e-01 742 2018 3 3.65244e+00 5.91659e-01 999 2018 4 4.50299e+00 1.52646e+00 1224 2018 5 1.08574e+01 2.61278e+00 482 2018 6 1.59975e+01 2.55572e+00 1157 2018 7 1.94899e+01 1.20917e+00 2087 2018 8 2.08265e+01 1.48621e+00 2460 2018 9 1.97383e+01 1.99867e+00 1919 2018 10 1.46898e+01 1.81916e+00 1509 2018 11 1.10854e+01 1.73888e+00 1418 2018 12 6.44602e+00 1.30962e+00 1633 2019 1 4.48825e+00 1.45090e+00 1591 2019 2 3.28347e+00 5.88522e-01 1176 2019 3 3.04516e+00 5.89155e-01 1381 2019 4 5.48045e+00 1.33164e+00 996 2019 5 9.90624e+00 2.24374e+00 862 2019 6 1.40638e+01 1.28812e+00 778 2019 7 2.09866e+01 1.63403e+00 2603 2019 8 2.01532e+01 1.45384e+00 2641 2019 9 1.78136e+01 8.94585e-01 3459 2019 10 1.37138e+01 6.79227e-01 1683 2019 11 1.13466e+01 1.55346e+00 1870 2019 12 6.36745e+00 1.03068e+00 1574 2020 1 5.09427e+00 6.86806e-01 1913 2020 2 4.56890e+00 3.89840e-01 1995 2020 3 5.01476e+00 5.53702e-01 1698 2020 4 6.19598e+00 7.72459e-01 1710 2020 5 9.59379e+00 2.10055e+00 2300 2020 6 1.64089e+01 1.95311e+00 1995 2020 7 2.02945e+01 1.65355e+00 2112 2020 8 2.00208e+01 1.55849e+00 1410 2020 9 1.76725e+01 1.71945e+00 2779 2020 10 1.49775e+01 1.27652e+00 2602 2020 11 1.16078e+01 1.10752e+00 1827 2020 12 8.47064e+00 1.11017e+00 1844 2021 1 5.65748e+00 6.41528e-01 1589 2021 2 3.58120e+00 4.10932e-01 1505 2021 3 3.97349e+00 1.02080e+00 2443 2021 4 6.89262e+00 1.30819e+00 2047 2021 5 1.14499e+01 2.15492e+00 2432 2021 6 1.69313e+01 2.21570e+00 1913 2021 7 1.97295e+01 1.59834e+00 2166 2021 8 2.12388e+01 1.42314e+00 1734 2021 9 1.88409e+01 8.78558e-01 2243 2021 10 1.63947e+01 1.19070e+00 1858 2021 11 1.24718e+01 1.12222e+00 2475 2021 12 9.39286e+00 7.23309e-01 1272 2022 1 6.06424e+00 1.23536e+00 1427 2022 2 4.10578e+00 4.99601e-01 1777 2022 3 4.47925e+00 6.63676e-01 1661 2022 4 7.08267e+00 6.47237e-01 1100 2022 5 1.11806e+01 2.86601e+00 1454 2022 6 1.63089e+01 1.77620e+00 2636 2022 7 2.00190e+01 2.07336e+00 3047 2022 8 2.00900e+01 1.39496e+00 2636 2022 9 1.87702e+01 1.84130e+00 2856 2022 10 1.49163e+01 8.00443e-01 2376 2022 11 1.25681e+01 1.35148e+00 3206 2022 12 8.84220e+00 1.21178e+00 1981 2023 1 5.93652e+00 7.17923e-01 1020 2023 2 5.07512e+00 4.56145e-01 1274 2023 3 4.99228e+00 7.71719e-01 2214 2023 4 7.10819e+00 1.41068e+00 1533 2023 5 1.20957e+01 1.82587e+00 3463 2023 6 1.58135e+01 2.07099e+00 1813 2023 7 2.01683e+01 1.45739e+00 2431 2023 8 1.85179e+01 7.45137e-01 2403 2023 9 1.86944e+01 1.58868e+00 2120 2023 10 1.59861e+01 1.27144e+00 2340 2023 11 1.16984e+01 1.36482e+00 2512 2023 12 8.57272e+00 6.00400e-01 2021 2024 1 6.53069e+00 1.09712e+00 2165 2024 2 3.91794e+00 6.67517e-01 2351 2024 3 4.56503e+00 7.80786e-01 1318 2024 4 5.57016e+00 4.39812e-02 64