YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.83393e+01 2.35547e-01 128 2000 3 2.07522e+01 1.53550e+00 772 2000 4 2.22218e+01 8.90024e-01 640 2000 5 2.56642e+01 1.79279e+00 831 2000 6 2.78949e+01 9.43659e-01 476 2000 7 2.86622e+01 5.89026e-01 457 2000 8 2.96804e+01 4.09757e-01 256 2000 9 2.71309e+01 1.56525e+00 399 2000 10 2.30495e+01 1.61630e+00 938 2000 11 2.17392e+01 2.09182e+00 410 2000 12 1.64489e+01 1.73792e+00 158 2001 1 1.21218e+01 4.96580e-02 64 2001 2 1.85753e+01 1.72425e+00 334 2001 3 1.65176e+01 1.47006e+00 491 2001 4 2.12555e+01 2.14602e+00 718 2001 5 2.56751e+01 9.41288e-01 768 2001 6 2.81129e+01 1.62868e+00 261 2001 7 2.87536e+01 7.72947e-01 213 2001 8 2.85689e+01 2.31234e+00 531 2001 9 2.65030e+01 1.55277e+00 479 2001 10 2.22660e+01 2.69067e+00 501 2001 11 1.95851e+01 9.44215e-01 808 2001 12 1.94021e+01 2.37499e+00 554 2002 1 1.45733e+01 2.15380e+00 109 2002 2 1.61262e+01 1.78900e+00 363 2002 3 1.80404e+01 2.38135e+00 204 2002 4 2.44762e+01 2.00909e+00 520 2002 5 2.63277e+01 1.88355e+00 727 2002 6 2.85529e+01 5.37737e-01 512 2002 7 2.92221e+01 1.32278e+00 1739 2002 8 2.89430e+01 9.83519e-01 1885 2002 9 2.86924e+01 1.21063e+00 1961 2002 10 2.68152e+01 1.95103e+00 2907 2002 11 2.00912e+01 2.79214e+00 2250 2002 12 1.43571e+01 1.00974e+00 1124 2003 1 1.19039e+01 1.32668e+00 1443 2003 2 1.54694e+01 2.16551e+00 727 2003 3 2.11834e+01 1.55775e+00 1384 2003 4 2.19259e+01 1.96343e+00 2641 2003 5 2.71939e+01 1.37632e+00 2759 2003 6 2.85287e+01 1.47352e+00 1751 2003 7 2.94232e+01 1.57620e+00 1212 2003 8 2.88794e+01 1.38437e+00 2202 2003 9 2.79196e+01 1.34420e+00 2214 2003 10 2.41232e+01 1.24416e+00 2378 2003 11 2.16313e+01 1.64950e+00 2650 2003 12 1.44376e+01 1.42331e+00 1095 2004 1 1.35867e+01 1.20512e+00 1633 2004 2 1.36258e+01 8.21249e-01 784 2004 3 1.87874e+01 1.64724e+00 2866 2004 4 2.05558e+01 1.61037e+00 2390 2004 5 2.63404e+01 1.80270e+00 3563 2004 6 2.95477e+01 1.46312e+00 2186 2004 7 3.00744e+01 1.27219e+00 2172 2004 8 2.97096e+01 1.35685e+00 2263 2004 9 2.70491e+01 1.81763e+00 1951 2004 10 2.50702e+01 1.91822e+00 2849 2004 11 2.17868e+01 2.60694e+00 1908 2004 12 1.65528e+01 2.22696e+00 1347 2005 1 1.45669e+01 2.15561e+00 1059 2005 2 1.45316e+01 1.12232e+00 1168 2005 3 1.68083e+01 1.87325e+00 1699 2005 4 2.06451e+01 8.35825e-01 3072 2005 5 2.49485e+01 2.08914e+00 3096 2005 6 2.85030e+01 1.39046e+00 1894 2005 7 3.04499e+01 1.67177e+00 2282 2005 8 3.03342e+01 2.00300e+00 1829 2005 9 2.80098e+01 1.35839e+00 2554 2005 10 2.48174e+01 3.00144e+00 2749 2005 11 1.98425e+01 1.86166e+00 2048 2005 12 1.48225e+01 2.08389e+00 1334 2006 1 1.51137e+01 1.22899e+00 1568 2006 2 1.46784e+01 1.46329e+00 1536 2006 3 1.88550e+01 1.22899e+00 2840 2006 4 2.27370e+01 2.43174e+00 2779 2006 5 2.53535e+01 1.64865e+00 3303 2006 6 2.83884e+01 1.19625e+00 3214 2006 7 3.01244e+01 1.28611e+00 2712 2006 8 3.03391e+01 1.07650e+00 2559 2006 9 2.84681e+01 1.74832e+00 2662 2006 10 2.42233e+01 2.12998e+00 2827 2006 11 1.84892e+01 1.51908e+00 1387 2006 12 1.62921e+01 1.18192e+00 588 2007 1 1.49780e+01 1.28019e+00 1040 2007 2 1.38776e+01 1.09511e+00 1249 2007 3 1.92504e+01 1.83323e+00 3120 2007 4 2.11295e+01 1.86123e+00 2362 2007 5 2.45374e+01 9.79348e-01 3269 2007 6 2.80869e+01 1.36430e+00 2367 2007 7 3.01117e+01 1.55322e+00 1757 2007 8 3.05470e+01 1.21983e+00 2364 2007 9 2.87426e+01 1.36716e+00 2070 2007 10 2.62838e+01 1.07787e+00 1783 2007 11 1.91360e+01 1.59565e+00 2782 2007 12 1.78272e+01 1.60459e+00 1699 2008 1 1.35047e+01 2.50162e+00 651 2008 2 1.66326e+01 1.47006e+00 1664 2008 3 1.79566e+01 1.88149e+00 2544 2008 4 2.21256e+01 1.55010e+00 2701 2008 5 2.51911e+01 1.56929e+00 2989 2008 6 2.89133e+01 1.42606e+00 2504 2008 7 2.96905e+01 1.62502e+00 1615 2008 8 2.83769e+01 1.66227e+00 1599 2008 9 2.76575e+01 1.88308e+00 2711 2008 10 2.34757e+01 2.33151e+00 3133 2008 11 1.72315e+01 2.17825e+00 2137 2008 12 1.57191e+01 1.45486e+00 1375 2009 1 1.46894e+01 2.22972e+00 1792 2009 2 1.40931e+01 1.38899e+00 1924 2009 3 1.81739e+01 2.93591e+00 2285 2009 4 2.21756e+01 1.57157e+00 2484 2009 5 2.63324e+01 1.41967e+00 2526 2009 6 2.88502e+01 1.14535e+00 2610 2009 7 2.92014e+01 1.20076e+00 1917 2009 8 2.98230e+01 1.77040e+00 2228 2009 9 2.85563e+01 1.08339e+00 2377 2009 10 2.57752e+01 2.83506e+00 2950 2009 11 1.94465e+01 1.39578e+00 1774 2009 12 1.37387e+01 1.94767e+00 569 2010 1 1.17115e+01 3.04469e+00 1179 2010 2 1.21649e+01 1.03265e+00 1492 2010 3 1.54124e+01 2.05875e+00 2137 2010 4 2.16019e+01 1.39613e+00 2241 2010 5 2.68512e+01 1.82193e+00 3315 2010 6 3.04975e+01 1.40818e+00 2606 2010 7 2.98765e+01 1.66192e+00 2413 2010 8 2.99615e+01 1.55358e+00 1437 2010 9 2.92337e+01 1.58053e+00 2576 2010 10 2.44480e+01 1.04283e+00 4150 2010 11 1.98975e+01 1.55753e+00 2674 2010 12 1.42432e+01 2.95046e+00 1469 2011 1 1.14225e+01 1.05454e+00 1441 2011 2 1.49907e+01 2.59014e+00 935 2011 3 1.96495e+01 1.46179e+00 2229 2011 4 2.39081e+01 1.61156e+00 3723 2011 5 2.60900e+01 1.65781e+00 4041 2011 6 2.95382e+01 1.40180e+00 2455 2011 7 2.95710e+01 1.11641e+00 1970 2011 8 3.05423e+01 1.27380e+00 2812 2011 9 2.82511e+01 1.06944e+00 2757 2011 10 2.36692e+01 1.98158e+00 2309 2011 11 1.87451e+01 1.04583e+00 1963 2011 12 1.62489e+01 7.64096e-01 1294 2012 1 1.52407e+01 1.80258e+00 2172 2012 2 1.61857e+01 1.84195e+00 740 2012 3 2.16110e+01 2.20369e+00 2849 2012 4 2.35181e+01 1.22836e+00 3332 2012 5 2.69403e+01 1.06423e+00 3019 2012 6 2.73795e+01 1.57308e+00 1934 2012 7 2.98478e+01 1.89313e+00 2364 2012 8 2.92042e+01 1.60401e+00 1889 2012 9 2.82062e+01 1.55504e+00 2215 2012 10 2.45372e+01 2.30831e+00 2475 2012 11 1.83155e+01 9.80588e-01 2251 2012 12 1.71101e+01 1.86409e+00 1691 2013 1 1.56406e+01 1.33038e+00 1298 2013 2 1.62867e+01 1.58778e+00 1654 2013 3 1.61136e+01 1.54265e+00 2857 2013 4 2.12583e+01 2.01034e+00 2403 2013 5 2.48691e+01 2.29126e+00 2934 2013 6 2.82745e+01 1.80222e+00 2584 2013 7 2.86847e+01 1.51889e+00 1294 2013 8 3.00792e+01 1.86149e+00 2203 2013 9 2.96323e+01 1.71814e+00 2682 2013 10 2.50451e+01 1.93347e+00 2839 2013 11 1.92858e+01 2.46575e+00 1488 2013 12 1.70028e+01 1.48876e+00 847 2014 1 1.26868e+01 8.40042e-01 804 2014 2 1.48431e+01 2.24372e+00 1188 2014 3 1.73949e+01 1.51181e+00 1941 2014 4 2.13855e+01 2.08518e+00 2268 2014 5 2.52507e+01 1.59639e+00 2421 2014 6 2.87362e+01 1.71156e+00 2314 2014 7 3.01998e+01 1.83001e+00 2111 2014 8 2.98621e+01 1.20181e+00 2517 2014 9 2.84090e+01 1.36953e+00 1114 2014 10 2.50955e+01 1.77272e+00 3317 2014 11 1.74130e+01 2.06283e+00 1718 2014 12 1.62824e+01 1.08007e+00 1394 2015 1 1.47829e+01 1.19555e+00 1893 2015 2 1.35857e+01 1.31057e+00 1607 2015 3 1.95607e+01 1.79549e+00 1675 2015 4 2.35680e+01 1.83236e+00 1119 2015 5 2.69286e+01 1.90412e+00 3920 2015 6 3.00709e+01 1.45549e+00 2168 2015 7 2.93920e+01 1.60108e+00 1831 2015 8 3.02422e+01 1.59462e+00 2084 2015 9 2.76582e+01 2.14371e+00 1360 2015 10 2.40338e+01 1.45054e+00 2274 2015 11 2.24524e+01 3.01534e+00 2234 2015 12 1.87626e+01 1.20384e+00 982 2016 1 1.46207e+01 1.80255e+00 1323 2016 2 1.42967e+01 1.46679e+00 1398 2016 3 1.86005e+01 2.10406e+00 1363 2016 4 2.24472e+01 2.00303e+00 2218 2016 5 2.61847e+01 1.69991e+00 3236 2016 6 2.96840e+01 1.04943e+00 2756 2016 7 3.11901e+01 1.32021e+00 2974 2016 8 3.04659e+01 1.17656e+00 2079 2016 9 2.93353e+01 1.41089e+00 2819 2016 10 2.51713e+01 1.74483e+00 2959 2016 11 2.03570e+01 2.37788e+00 2546 2016 12 1.80948e+01 1.74833e+00 1435 2017 1 1.59403e+01 1.55078e+00 1370 2017 2 1.79928e+01 1.74586e+00 2131 2017 3 1.91880e+01 2.19495e+00 2849 2017 4 2.34049e+01 1.37741e+00 3006 2017 5 2.52438e+01 1.40852e+00 2462 2017 6 2.86500e+01 1.63427e+00 1513 2017 7 3.03149e+01 1.44646e+00 1326 2017 8 3.02306e+01 1.47232e+00 1868 2017 9 2.81931e+01 1.47239e+00 2708 2017 10 2.51326e+01 2.58008e+00 2810 2017 11 1.98907e+01 1.21445e+00 2779 2017 12 1.72391e+01 2.46811e+00 1056 2018 1 1.13905e+01 1.89310e+00 1336 2018 2 2.01656e+01 3.20346e+00 1433 2018 3 1.83251e+01 1.89247e+00 2990 2018 4 2.16022e+01 1.26553e+00 2564 2018 5 2.51239e+01 1.75492e+00 2099 2018 6 2.94831e+01 1.55449e+00 1991 2018 7 3.00414e+01 1.40449e+00 1787 2018 8 3.02425e+01 1.28946e+00 1935 2018 9 3.03741e+01 1.19748e+00 3075 2018 10 2.67969e+01 2.33711e+00 3140 2018 11 1.90314e+01 2.37821e+00 1231 2018 12 1.55204e+01 1.66219e+00 1268 2019 1 1.49874e+01 2.00731e+00 1558 2019 2 1.82781e+01 2.86440e+00 1301 2019 3 1.91113e+01 1.29949e+00 2142 2019 4 2.25112e+01 1.71680e+00 2021 2019 5 2.77564e+01 1.77745e+00 3323 2019 6 2.95616e+01 1.13854e+00 1879 2019 7 2.96378e+01 1.51018e+00 1654 2019 8 2.98493e+01 1.30276e+00 2126 2019 9 2.90872e+01 1.11220e+00 3453 2019 10 2.61466e+01 1.89377e+00 2346 2019 11 1.88888e+01 2.55622e+00 2013 2019 12 1.67275e+01 1.54320e+00 1722 2020 1 1.60275e+01 1.78621e+00 2317 2020 2 1.57600e+01 1.28064e+00 1705 2020 3 2.14355e+01 3.55634e+00 2609 2020 4 2.42039e+01 7.65446e-01 1739 2020 5 2.48337e+01 1.56460e+00 3207 2020 6 2.95914e+01 1.41964e+00 2141 2020 7 3.02119e+01 1.21384e+00 1672 2020 8 3.13301e+01 1.44383e+00 1238 2020 9 2.81746e+01 2.08605e+00 1342 2020 10 2.57996e+01 9.90108e-01 2441 2020 11 2.12579e+01 2.07711e+00 2727 2020 12 1.49102e+01 1.42816e+00 2773 2021 1 1.44689e+01 1.58388e+00 1570 2021 2 1.67544e+01 2.42369e+00 1733 2021 3 1.91592e+01 1.84012e+00 2377 2021 4 2.19772e+01 1.77367e+00 2544 2021 5 2.58746e+01 1.36859e+00 2610 2021 6 2.83644e+01 1.38511e+00 1279 2021 7 2.94831e+01 1.20320e+00 1317 2021 8 3.01785e+01 1.38939e+00 1816 2021 9 2.85298e+01 1.36186e+00 2184 2021 10 2.60997e+01 1.64660e+00 1871 2021 11 1.87134e+01 1.54565e+00 2688 2021 12 1.78748e+01 1.38743e+00 2459 2022 1 1.57849e+01 2.41563e+00 2626 2022 2 1.60097e+01 2.83002e+00 2449 2022 3 1.95556e+01 1.14738e+00 2780 2022 4 2.33164e+01 1.15146e+00 2048 2022 5 2.68736e+01 1.27453e+00 2980 2022 6 2.98012e+01 1.13319e+00 2426 2022 7 3.08575e+01 1.05338e+00 2080 2022 8 3.09694e+01 1.24559e+00 1813 2022 9 2.85974e+01 1.70592e+00 1993 2022 10 2.31148e+01 1.56850e+00 3055 2022 11 2.17539e+01 2.39039e+00 1611 2022 12 1.78448e+01 2.85913e+00 2681 2023 1 1.49199e+01 1.15811e+00 2539 2023 2 1.72941e+01 1.56269e+00 2109 2023 3 2.06543e+01 2.11899e+00 3185 2023 4 2.32856e+01 1.21775e+00 2065 2023 5 2.57944e+01 1.88034e+00 2643 2023 6 2.77252e+01 1.29183e+00 2182 2023 7 3.06469e+01 1.23901e+00 3094 2023 8 3.11690e+01 1.00727e+00 2863 2023 9 2.91031e+01 1.41625e+00 2044 2023 10 2.36882e+01 1.34896e+00 2551 2023 11 2.02651e+01 1.70816e+00 1896 2023 12 1.43652e+01 1.49866e+00 1335 2024 1 1.35576e+01 1.21945e+00 1392 2024 2 1.57297e+01 9.19006e-01 2006 2024 3 2.02710e+01 1.22310e+00 1992 2024 4 2.22548e+01 6.43508e-01 204