YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.88654e+01 4.16173e-01 173 2000 3 2.06323e+01 1.43031e+00 617 2000 4 2.11721e+01 1.64806e+00 477 2000 5 2.57697e+01 1.96388e+00 521 2000 6 2.76876e+01 1.50129e+00 420 2000 7 2.85989e+01 1.35137e+00 389 2000 8 2.96824e+01 7.62742e-01 192 2000 9 2.71165e+01 1.31288e+00 275 2000 10 2.32008e+01 2.04795e+00 557 2000 11 2.31104e+01 5.65990e-01 184 2000 12 1.72246e+01 2.39928e+00 113 2001 1 1.22100e+01 9.00002e-02 4 2001 2 1.83386e+01 2.09588e+00 320 2001 3 1.57458e+01 1.55560e+00 275 2001 4 2.12594e+01 2.19332e+00 668 2001 5 2.56043e+01 1.12042e+00 517 2001 6 2.76149e+01 1.05040e+00 149 2001 7 2.88841e+01 1.38494e+00 241 2001 8 2.99918e+01 1.30858e+00 345 2001 9 2.67022e+01 1.62874e+00 165 2001 10 2.31400e+01 2.30302e+00 241 2001 11 1.97977e+01 1.33524e+00 629 2001 12 1.85347e+01 2.97732e+00 428 2002 1 1.76463e+01 2.28487e+00 193 2002 2 1.57644e+01 3.00515e+00 417 2002 3 2.05565e+01 1.25414e+00 241 2002 4 2.47904e+01 2.29106e+00 400 2002 5 2.57818e+01 2.02468e+00 760 2002 6 2.81363e+01 1.15157e+00 503 2002 7 2.91756e+01 1.50015e+00 1238 2002 8 2.85684e+01 1.55204e+00 1645 2002 9 2.83670e+01 1.50052e+00 1389 2002 10 2.66278e+01 2.48742e+00 2420 2002 11 1.97784e+01 2.38224e+00 1080 2002 12 1.41255e+01 9.18494e-01 382 2003 1 1.15067e+01 1.73037e+00 684 2003 2 1.50799e+01 1.96142e+00 1207 2003 3 2.07518e+01 1.79052e+00 1405 2003 4 2.18138e+01 2.50604e+00 2366 2003 5 2.72523e+01 1.51784e+00 2627 2003 6 2.83860e+01 1.44980e+00 1507 2003 7 2.94071e+01 1.77775e+00 1133 2003 8 2.85898e+01 1.28548e+00 2058 2003 9 2.71911e+01 1.46600e+00 1841 2003 10 2.40719e+01 1.31353e+00 2402 2003 11 2.15018e+01 2.20600e+00 2657 2003 12 1.32760e+01 1.09170e+00 205 2004 1 1.38868e+01 1.71938e+00 1256 2004 2 1.36392e+01 1.75920e+00 590 2004 3 1.89652e+01 2.02230e+00 2433 2004 4 2.05801e+01 2.36340e+00 2327 2004 5 2.63931e+01 1.95444e+00 3290 2004 6 2.99047e+01 1.45868e+00 1682 2004 7 3.00807e+01 1.51378e+00 1931 2004 8 2.94692e+01 1.49127e+00 1874 2004 9 2.66381e+01 2.09114e+00 1666 2004 10 2.46163e+01 2.18248e+00 2429 2004 11 2.12835e+01 2.94384e+00 2065 2004 12 1.67776e+01 1.56909e+00 774 2005 1 1.46731e+01 2.60868e+00 938 2005 2 1.52335e+01 1.81514e+00 1169 2005 3 1.68385e+01 2.31449e+00 1588 2005 4 2.02331e+01 1.24687e+00 2450 2005 5 2.53556e+01 2.06475e+00 2642 2005 6 2.80269e+01 1.86126e+00 1804 2005 7 3.05455e+01 1.86764e+00 2168 2005 8 3.09054e+01 2.02450e+00 1963 2005 9 2.79902e+01 1.41495e+00 2399 2005 10 2.59849e+01 1.77208e+00 1651 2005 11 2.07071e+01 1.81952e+00 1506 2005 12 1.45605e+01 1.33345e+00 908 2006 1 1.52512e+01 2.49407e+00 1373 2006 2 1.43475e+01 1.78079e+00 1256 2006 3 1.88546e+01 2.08544e+00 2728 2006 4 2.30130e+01 2.41711e+00 2881 2006 5 2.53070e+01 2.32278e+00 2850 2006 6 2.81459e+01 1.55847e+00 2771 2006 7 2.99536e+01 1.59776e+00 2482 2006 8 3.00987e+01 1.32197e+00 2235 2006 9 2.83471e+01 1.82685e+00 2459 2006 10 2.36064e+01 2.41762e+00 2355 2006 11 1.86396e+01 2.13109e+00 1073 2006 12 1.62999e+01 1.72842e+00 739 2007 1 1.50163e+01 2.66488e+00 991 2007 2 1.44657e+01 1.94848e+00 1311 2007 3 1.93686e+01 2.33760e+00 2540 2007 4 2.10565e+01 2.27195e+00 1914 2007 5 2.41630e+01 1.59802e+00 2632 2007 6 2.80263e+01 1.72905e+00 2144 2007 7 3.05030e+01 1.48583e+00 1695 2007 8 3.06397e+01 1.22839e+00 2026 2007 9 2.79190e+01 1.46992e+00 1789 2007 10 2.57937e+01 1.33968e+00 1393 2007 11 1.85914e+01 1.79048e+00 2174 2007 12 1.79528e+01 2.18302e+00 1522 2008 1 1.41344e+01 2.70493e+00 571 2008 2 1.66605e+01 2.19701e+00 1668 2008 3 1.76714e+01 2.59511e+00 2004 2008 4 2.18544e+01 2.09360e+00 2194 2008 5 2.50684e+01 1.77301e+00 2409 2008 6 2.92035e+01 1.24663e+00 2382 2008 7 2.99576e+01 1.51316e+00 1694 2008 8 2.88800e+01 1.77277e+00 1558 2008 9 2.72629e+01 2.27384e+00 2185 2008 10 2.30472e+01 2.83747e+00 2315 2008 11 1.64721e+01 3.10234e+00 1826 2008 12 1.62707e+01 2.09765e+00 1598 2009 1 1.52922e+01 2.25756e+00 1334 2009 2 1.41847e+01 2.53319e+00 1434 2009 3 1.87429e+01 3.13389e+00 2340 2009 4 2.17912e+01 2.27901e+00 2049 2009 5 2.61526e+01 1.71184e+00 2292 2009 6 2.89084e+01 1.85470e+00 2138 2009 7 2.91477e+01 1.46400e+00 1892 2009 8 2.95853e+01 1.97843e+00 2033 2009 9 2.85311e+01 1.41080e+00 2000 2009 10 2.63985e+01 2.80663e+00 2459 2009 11 1.91979e+01 1.91769e+00 1388 2009 12 1.43099e+01 3.08198e+00 376 2010 1 1.31973e+01 2.78965e+00 803 2010 2 1.11978e+01 1.62668e+00 1384 2010 3 1.56921e+01 2.54448e+00 1814 2010 4 2.18273e+01 1.74815e+00 2077 2010 5 2.68888e+01 1.81043e+00 3344 2010 6 3.05055e+01 1.33122e+00 2494 2010 7 2.99634e+01 1.74379e+00 2649 2010 8 3.03533e+01 1.98095e+00 1044 2010 9 2.89065e+01 1.88366e+00 2317 2010 10 2.44225e+01 1.56915e+00 3394 2010 11 1.96169e+01 2.01717e+00 2256 2010 12 1.33604e+01 2.68657e+00 834 2011 1 1.18053e+01 1.95230e+00 1138 2011 2 1.67234e+01 3.25938e+00 1391 2011 3 1.97548e+01 2.24100e+00 2407 2011 4 2.39852e+01 1.99837e+00 3281 2011 5 2.61924e+01 2.25528e+00 3816 2011 6 2.94091e+01 1.54732e+00 2368 2011 7 2.96547e+01 1.52194e+00 2020 2011 8 3.00079e+01 1.85726e+00 2717 2011 9 2.81689e+01 1.21394e+00 2770 2011 10 2.25094e+01 2.70103e+00 2022 2011 11 1.87067e+01 2.01664e+00 1913 2011 12 1.60112e+01 1.56313e+00 1516 2012 1 1.53419e+01 2.04025e+00 1577 2012 2 1.78157e+01 1.85940e+00 516 2012 3 2.19051e+01 2.35719e+00 2576 2012 4 2.31699e+01 2.09620e+00 2815 2012 5 2.71204e+01 9.87308e-01 2926 2012 6 2.78347e+01 1.53436e+00 1605 2012 7 2.97973e+01 1.92395e+00 2228 2012 8 2.94036e+01 1.68158e+00 1921 2012 9 2.81576e+01 1.47161e+00 2170 2012 10 2.43175e+01 1.80407e+00 1836 2012 11 1.76892e+01 1.52497e+00 1883 2012 12 1.70974e+01 2.09804e+00 1592 2013 1 1.64468e+01 2.14984e+00 1359 2013 2 1.52086e+01 2.11370e+00 1210 2013 3 1.57295e+01 2.07718e+00 2254 2013 4 2.13383e+01 2.39421e+00 2016 2013 5 2.51290e+01 2.47277e+00 2690 2013 6 2.85042e+01 1.69465e+00 2069 2013 7 2.83644e+01 2.02192e+00 1032 2013 8 3.00809e+01 1.91270e+00 2210 2013 9 2.89498e+01 1.86702e+00 2129 2013 10 2.43831e+01 2.71542e+00 2354 2013 11 1.99387e+01 2.40639e+00 715 2013 12 1.77247e+01 2.30740e+00 1348 2014 1 1.28776e+01 1.39191e+00 746 2014 2 1.48634e+01 2.27161e+00 1092 2014 3 1.77225e+01 1.71174e+00 1955 2014 4 2.19311e+01 2.45429e+00 2225 2014 5 2.50881e+01 2.02325e+00 2311 2014 6 2.88007e+01 1.74343e+00 1872 2014 7 3.01758e+01 1.87587e+00 1878 2014 8 2.94498e+01 1.63283e+00 2239 2014 9 2.76274e+01 1.73517e+00 1158 2014 10 2.47603e+01 2.24382e+00 2843 2014 11 1.66129e+01 2.33798e+00 1268 2014 12 1.63492e+01 1.75168e+00 1780 2015 1 1.43773e+01 1.60935e+00 1360 2015 2 1.31420e+01 1.97351e+00 1430 2015 3 1.97550e+01 2.58061e+00 1599 2015 4 2.41112e+01 2.01626e+00 1328 2015 5 2.68396e+01 2.38227e+00 3497 2015 6 3.00691e+01 1.50103e+00 2072 2015 7 2.92891e+01 1.62949e+00 1327 2015 8 3.00626e+01 1.69535e+00 1863 2015 9 2.71706e+01 2.06777e+00 1366 2015 10 2.36523e+01 1.76236e+00 1749 2015 11 2.21747e+01 3.76442e+00 2092 2015 12 1.85371e+01 2.63477e+00 893 2016 1 1.34841e+01 1.54966e+00 1140 2016 2 1.47016e+01 2.15517e+00 1763 2016 3 1.90751e+01 2.45692e+00 1157 2016 4 2.24761e+01 2.24268e+00 2029 2016 5 2.59644e+01 2.07792e+00 2723 2016 6 2.97273e+01 1.86687e+00 2661 2016 7 3.14894e+01 1.36495e+00 2793 2016 8 3.02835e+01 1.20335e+00 1817 2016 9 2.90441e+01 1.49133e+00 2292 2016 10 2.46357e+01 1.72539e+00 2425 2016 11 1.98700e+01 2.66004e+00 2069 2016 12 1.82651e+01 1.89101e+00 1629 2017 1 1.55530e+01 2.40140e+00 1235 2017 2 1.83763e+01 1.88887e+00 2275 2017 3 1.93774e+01 3.01435e+00 2480 2017 4 2.32072e+01 2.18671e+00 2399 2017 5 2.53145e+01 2.27846e+00 2185 2017 6 2.86129e+01 2.36539e+00 1315 2017 7 3.00847e+01 1.57699e+00 1579 2017 8 3.01100e+01 1.55318e+00 1988 2017 9 2.81566e+01 1.49510e+00 2290 2017 10 2.47416e+01 3.31674e+00 2592 2017 11 1.95495e+01 1.51718e+00 2352 2017 12 1.78274e+01 2.96754e+00 1079 2018 1 1.23018e+01 1.90942e+00 910 2018 2 2.10213e+01 3.15101e+00 1731 2018 3 1.77766e+01 2.65111e+00 2571 2018 4 2.16122e+01 1.63763e+00 2325 2018 5 2.54466e+01 1.96451e+00 1693 2018 6 2.93496e+01 1.82389e+00 1887 2018 7 2.93116e+01 1.63328e+00 1747 2018 8 3.04875e+01 1.49567e+00 1542 2018 9 2.99658e+01 1.38728e+00 2805 2018 10 2.62817e+01 2.66078e+00 2508 2018 11 1.87114e+01 3.21365e+00 1216 2018 12 1.59596e+01 2.21473e+00 1142 2019 1 1.48276e+01 2.50729e+00 1342 2019 2 1.91825e+01 2.81974e+00 1082 2019 3 1.90095e+01 2.04552e+00 2285 2019 4 2.24701e+01 2.16849e+00 2166 2019 5 2.80061e+01 1.97879e+00 3168 2019 6 2.91027e+01 1.53656e+00 1904 2019 7 2.94555e+01 1.77014e+00 1589 2019 8 3.02376e+01 1.27037e+00 2005 2019 9 2.90778e+01 1.59959e+00 2884 2019 10 2.56702e+01 1.81605e+00 2008 2019 11 1.87296e+01 2.29468e+00 2081 2019 12 1.65769e+01 1.95267e+00 1737 2020 1 1.60170e+01 2.37015e+00 1951 2020 2 1.54123e+01 2.01996e+00 1597 2020 3 2.25916e+01 3.79819e+00 2664 2020 4 2.36897e+01 1.18791e+00 1634 2020 5 2.48680e+01 2.15826e+00 2921 2020 6 2.96209e+01 1.73888e+00 2167 2020 7 3.00669e+01 1.34607e+00 1528 2020 8 3.15597e+01 1.23205e+00 1328 2020 9 2.87502e+01 2.32431e+00 1252 2020 10 2.56986e+01 1.40962e+00 2225 2020 11 2.07599e+01 2.11531e+00 2334 2020 12 1.44844e+01 1.62847e+00 2149 2021 1 1.49881e+01 2.39213e+00 1661 2021 2 1.70324e+01 3.03845e+00 1881 2021 3 1.97239e+01 2.67258e+00 2371 2021 4 2.22884e+01 2.71446e+00 2485 2021 5 2.56019e+01 2.00526e+00 2345 2021 6 2.83610e+01 1.47188e+00 1175 2021 7 2.95607e+01 1.25174e+00 1332 2021 8 2.98483e+01 1.63921e+00 1696 2021 9 2.83203e+01 1.36021e+00 2108 2021 10 2.58754e+01 2.09078e+00 2114 2021 11 1.77242e+01 1.83702e+00 2342 2021 12 1.81908e+01 2.01904e+00 2639 2022 1 1.49233e+01 2.99989e+00 2404 2022 2 1.67965e+01 3.62505e+00 2456 2022 3 2.02195e+01 1.61300e+00 2663 2022 4 2.30578e+01 2.21917e+00 1803 2022 5 2.70019e+01 1.68458e+00 2918 2022 6 2.92750e+01 1.48199e+00 2553 2022 7 3.07462e+01 1.36451e+00 1881 2022 8 3.08693e+01 1.45013e+00 1616 2022 9 2.84113e+01 2.25622e+00 1624 2022 10 2.29641e+01 2.38240e+00 2924 2022 11 2.18579e+01 2.37182e+00 1681 2022 12 1.83996e+01 3.34394e+00 2430 2023 1 1.53787e+01 2.12644e+00 2575 2023 2 1.77352e+01 2.34473e+00 1940 2023 3 2.09954e+01 2.52757e+00 2665 2023 4 2.40624e+01 1.44072e+00 1521 2023 5 2.54619e+01 2.01821e+00 2311 2023 6 2.80191e+01 1.78546e+00 2172 2023 7 3.11387e+01 1.36397e+00 2494 2023 8 3.09931e+01 1.26095e+00 2714 2023 9 2.89651e+01 1.61941e+00 2322 2023 10 2.32513e+01 1.85064e+00 2319 2023 11 2.01674e+01 2.14940e+00 1693 2023 12 1.44931e+01 1.48786e+00 1189 2024 1 1.40163e+01 1.79695e+00 1217 2024 2 1.59308e+01 1.42525e+00 1820 2024 3 2.05362e+01 1.98936e+00 1830 2024 4 2.18828e+01 4.88912e-01 195