YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.83012e+01 1.32112e-01 106 2000 3 2.09346e+01 1.36603e+00 727 2000 4 2.21847e+01 1.00699e+00 678 2000 5 2.57550e+01 1.73039e+00 776 2000 6 2.83673e+01 7.55021e-01 448 2000 7 2.87430e+01 1.05262e+00 406 2000 8 2.96832e+01 3.06730e-01 221 2000 9 2.73069e+01 1.70728e+00 261 2000 10 2.29374e+01 1.89186e+00 920 2000 11 2.12161e+01 2.02241e+00 328 2000 12 1.68130e+01 1.22655e+00 131 2001 1 1.20620e+01 1.97170e-02 64 2001 2 1.81551e+01 1.94586e+00 439 2001 3 1.72322e+01 1.12660e+00 553 2001 4 2.18601e+01 2.15543e+00 599 2001 5 2.55390e+01 1.14976e+00 721 2001 6 2.91390e+01 1.13544e+00 145 2001 7 2.92244e+01 1.40788e-01 128 2001 8 3.01154e+01 9.40163e-01 389 2001 9 2.63802e+01 1.27903e+00 309 2001 10 2.25470e+01 2.23161e+00 427 2001 11 1.95899e+01 9.36990e-01 821 2001 12 1.94006e+01 2.52004e+00 594 2002 1 1.54416e+01 2.21578e+00 140 2002 2 1.61495e+01 1.83837e+00 384 2002 3 1.91084e+01 2.11655e+00 193 2002 4 2.44289e+01 1.73644e+00 459 2002 5 2.63308e+01 1.76993e+00 837 2002 6 2.81842e+01 1.05337e+00 568 2002 7 2.93659e+01 1.20465e+00 1711 2002 8 2.90066e+01 1.07583e+00 1985 2002 9 2.86675e+01 1.05443e+00 1990 2002 10 2.70513e+01 1.90947e+00 2951 2002 11 1.99789e+01 2.67938e+00 2183 2002 12 1.42546e+01 9.73207e-01 1024 2003 1 1.17304e+01 1.41720e+00 1636 2003 2 1.51470e+01 2.05969e+00 865 2003 3 2.10369e+01 1.81482e+00 1486 2003 4 2.19297e+01 2.23970e+00 2754 2003 5 2.73691e+01 1.54088e+00 2555 2003 6 2.80841e+01 1.58627e+00 1694 2003 7 2.98382e+01 1.51793e+00 1143 2003 8 2.86567e+01 1.45754e+00 2000 2003 9 2.78665e+01 1.42725e+00 1786 2003 10 2.43151e+01 1.13010e+00 2565 2003 11 2.13919e+01 2.15244e+00 2892 2003 12 1.45520e+01 1.44576e+00 969 2004 1 1.36071e+01 1.15686e+00 1573 2004 2 1.43175e+01 7.51784e-01 643 2004 3 1.89070e+01 1.67690e+00 2748 2004 4 2.02656e+01 1.78835e+00 2858 2004 5 2.61144e+01 1.84712e+00 3546 2004 6 3.01841e+01 1.11854e+00 2084 2004 7 3.01727e+01 1.50051e+00 2409 2004 8 2.96776e+01 1.49728e+00 2487 2004 9 2.71141e+01 1.99887e+00 1885 2004 10 2.49184e+01 1.90116e+00 2726 2004 11 2.14579e+01 2.35609e+00 2371 2004 12 1.63897e+01 2.23138e+00 1308 2005 1 1.42081e+01 1.92873e+00 1155 2005 2 1.46901e+01 1.37242e+00 1239 2005 3 1.71172e+01 1.91768e+00 1579 2005 4 2.07880e+01 1.00698e+00 3022 2005 5 2.52634e+01 2.04518e+00 2983 2005 6 2.83745e+01 1.75975e+00 1971 2005 7 3.05661e+01 1.81838e+00 2344 2005 8 3.07495e+01 2.03242e+00 2125 2005 9 2.79757e+01 1.28892e+00 2655 2005 10 2.49356e+01 3.09670e+00 2987 2005 11 1.97950e+01 1.94310e+00 2188 2005 12 1.49820e+01 2.03526e+00 1496 2006 1 1.50843e+01 1.35041e+00 1630 2006 2 1.46312e+01 1.79794e+00 1500 2006 3 1.88256e+01 1.33742e+00 2964 2006 4 2.30114e+01 2.36006e+00 2898 2006 5 2.52772e+01 1.91339e+00 3079 2006 6 2.83337e+01 1.23460e+00 3004 2006 7 2.99403e+01 1.41660e+00 2953 2006 8 3.03878e+01 1.17614e+00 2186 2006 9 2.87001e+01 1.58368e+00 2588 2006 10 2.44708e+01 2.15998e+00 2831 2006 11 1.93046e+01 1.34549e+00 1267 2006 12 1.66260e+01 1.32899e+00 654 2007 1 1.46629e+01 1.67981e+00 1141 2007 2 1.36904e+01 1.43528e+00 1378 2007 3 1.88761e+01 1.77995e+00 3119 2007 4 2.11761e+01 1.69134e+00 2610 2007 5 2.44327e+01 1.19009e+00 3470 2007 6 2.80894e+01 1.59305e+00 2312 2007 7 2.99991e+01 1.75180e+00 2229 2007 8 3.07715e+01 1.04547e+00 2593 2007 9 2.84789e+01 1.41403e+00 2101 2007 10 2.63404e+01 8.66007e-01 1690 2007 11 1.92917e+01 1.62761e+00 2960 2007 12 1.82863e+01 1.76202e+00 1840 2008 1 1.39840e+01 2.17964e+00 740 2008 2 1.70138e+01 1.38445e+00 1551 2008 3 1.80933e+01 1.91544e+00 2601 2008 4 2.22345e+01 1.62284e+00 2765 2008 5 2.51187e+01 1.53196e+00 2919 2008 6 2.92144e+01 1.19687e+00 2430 2008 7 2.98479e+01 1.60875e+00 1723 2008 8 2.84727e+01 1.60556e+00 1508 2008 9 2.74665e+01 2.01238e+00 2679 2008 10 2.33773e+01 2.48111e+00 3053 2008 11 1.70772e+01 2.24806e+00 2323 2008 12 1.57923e+01 1.76916e+00 1723 2009 1 1.48313e+01 2.39317e+00 1777 2009 2 1.43811e+01 1.78848e+00 1787 2009 3 1.82404e+01 2.86308e+00 2437 2009 4 2.22246e+01 1.97287e+00 2669 2009 5 2.62201e+01 1.44013e+00 2378 2009 6 2.91946e+01 1.17693e+00 2324 2009 7 2.91567e+01 1.45326e+00 2182 2009 8 2.97249e+01 1.74280e+00 2263 2009 9 2.87700e+01 1.17262e+00 2251 2009 10 2.56200e+01 2.90023e+00 3258 2009 11 1.97487e+01 1.53060e+00 1764 2009 12 1.39129e+01 1.91113e+00 492 2010 1 1.10167e+01 3.10239e+00 1483 2010 2 1.22325e+01 1.28413e+00 1650 2010 3 1.53322e+01 2.02624e+00 2061 2010 4 2.11916e+01 1.62000e+00 2074 2010 5 2.66926e+01 2.11945e+00 3438 2010 6 3.02866e+01 1.38701e+00 2629 2010 7 2.98583e+01 1.48829e+00 2670 2010 8 3.06946e+01 1.56361e+00 1151 2010 9 2.91749e+01 1.65294e+00 2692 2010 10 2.44943e+01 1.14253e+00 4283 2010 11 1.97306e+01 1.60287e+00 3003 2010 12 1.34381e+01 3.15634e+00 1801 2011 1 1.15310e+01 1.03859e+00 1473 2011 2 1.51141e+01 2.54392e+00 1142 2011 3 1.96577e+01 1.67147e+00 2262 2011 4 2.39213e+01 1.53941e+00 3562 2011 5 2.61177e+01 1.56723e+00 4304 2011 6 2.95158e+01 1.17845e+00 2475 2011 7 2.97397e+01 1.57888e+00 2002 2011 8 3.06689e+01 1.34594e+00 2699 2011 9 2.83698e+01 1.07507e+00 2826 2011 10 2.34666e+01 2.02240e+00 2419 2011 11 1.90615e+01 1.26028e+00 2011 2011 12 1.65515e+01 8.67033e-01 1641 2012 1 1.54002e+01 1.81774e+00 2001 2012 2 1.69845e+01 1.93465e+00 605 2012 3 2.17463e+01 2.22721e+00 2881 2012 4 2.34632e+01 1.30093e+00 3481 2012 5 2.70176e+01 1.02305e+00 3097 2012 6 2.75733e+01 1.24913e+00 1868 2012 7 2.96263e+01 1.84129e+00 2319 2012 8 2.93312e+01 1.56255e+00 2074 2012 9 2.82473e+01 1.30111e+00 2445 2012 10 2.44567e+01 2.64790e+00 2495 2012 11 1.82756e+01 9.26809e-01 2286 2012 12 1.74485e+01 1.85937e+00 1875 2013 1 1.59576e+01 1.25148e+00 1156 2013 2 1.60758e+01 1.50147e+00 1694 2013 3 1.61709e+01 1.69716e+00 2920 2013 4 2.14263e+01 2.23099e+00 2248 2013 5 2.48797e+01 2.13807e+00 3046 2013 6 2.85650e+01 1.67363e+00 2686 2013 7 2.91120e+01 1.69665e+00 1324 2013 8 3.00531e+01 1.96294e+00 2393 2013 9 2.94499e+01 1.98378e+00 2563 2013 10 2.49781e+01 2.10641e+00 2812 2013 11 1.96224e+01 2.59072e+00 1509 2013 12 1.70277e+01 1.52179e+00 1007 2014 1 1.33925e+01 1.57593e+00 936 2014 2 1.57385e+01 2.37816e+00 1115 2014 3 1.77353e+01 1.51382e+00 2230 2014 4 2.17489e+01 1.70685e+00 1958 2014 5 2.53168e+01 1.60648e+00 2620 2014 6 2.87917e+01 1.96008e+00 2150 2014 7 3.01999e+01 1.69392e+00 1778 2014 8 2.97617e+01 1.30291e+00 2599 2014 9 2.83676e+01 1.48218e+00 1438 2014 10 2.51182e+01 2.08618e+00 3457 2014 11 1.74109e+01 2.29973e+00 1672 2014 12 1.65237e+01 1.38904e+00 1624 2015 1 1.49027e+01 1.82556e+00 1868 2015 2 1.38716e+01 1.42494e+00 1715 2015 3 1.99455e+01 2.32732e+00 1759 2015 4 2.37181e+01 1.89605e+00 1361 2015 5 2.68656e+01 1.98744e+00 3936 2015 6 3.00257e+01 1.41218e+00 2375 2015 7 2.96622e+01 1.63160e+00 1619 2015 8 3.00505e+01 1.58867e+00 2047 2015 9 2.75857e+01 1.58018e+00 1367 2015 10 2.40539e+01 1.40770e+00 2200 2015 11 2.25502e+01 3.05692e+00 2439 2015 12 1.88547e+01 1.68770e+00 1067 2016 1 1.47573e+01 1.85010e+00 1318 2016 2 1.48536e+01 1.83871e+00 1541 2016 3 1.86439e+01 1.86349e+00 1100 2016 4 2.22879e+01 2.01047e+00 2183 2016 5 2.62100e+01 1.62993e+00 3290 2016 6 2.97584e+01 1.20881e+00 2854 2016 7 3.12558e+01 1.43986e+00 2877 2016 8 3.02997e+01 1.01835e+00 2057 2016 9 2.94912e+01 1.27229e+00 2642 2016 10 2.48955e+01 1.89528e+00 3147 2016 11 2.03299e+01 2.48697e+00 2672 2016 12 1.80503e+01 1.85703e+00 2023 2017 1 1.63639e+01 1.60181e+00 1456 2017 2 1.82294e+01 1.81407e+00 2242 2017 3 1.90878e+01 2.18014e+00 2940 2017 4 2.34198e+01 1.39574e+00 3093 2017 5 2.54134e+01 1.61129e+00 2730 2017 6 2.85957e+01 1.48263e+00 1500 2017 7 3.00433e+01 1.71532e+00 1607 2017 8 3.01978e+01 1.75580e+00 2377 2017 9 2.81623e+01 1.64093e+00 2347 2017 10 2.50156e+01 2.64553e+00 2813 2017 11 1.99995e+01 1.33337e+00 2969 2017 12 1.73252e+01 2.76353e+00 1289 2018 1 1.14176e+01 1.79733e+00 1227 2018 2 1.95867e+01 3.33872e+00 1695 2018 3 1.83903e+01 2.14604e+00 2971 2018 4 2.17289e+01 1.21978e+00 2528 2018 5 2.54000e+01 1.35687e+00 1857 2018 6 2.93069e+01 1.75395e+00 2147 2018 7 2.94625e+01 1.40817e+00 1530 2018 8 3.03817e+01 1.44038e+00 1783 2018 9 3.04202e+01 1.25235e+00 3050 2018 10 2.67263e+01 2.37950e+00 3148 2018 11 1.98695e+01 2.37982e+00 1330 2018 12 1.62914e+01 1.81323e+00 1599 2019 1 1.57963e+01 2.08706e+00 1758 2019 2 1.80317e+01 3.11740e+00 1177 2019 3 1.91132e+01 1.35900e+00 2409 2019 4 2.26697e+01 1.75642e+00 2344 2019 5 2.75967e+01 1.91720e+00 3409 2019 6 2.93991e+01 1.23330e+00 1985 2019 7 2.97816e+01 1.63497e+00 1608 2019 8 2.98621e+01 1.37066e+00 2092 2019 9 2.90337e+01 1.19402e+00 3474 2019 10 2.60308e+01 2.05930e+00 2340 2019 11 1.90098e+01 2.54852e+00 2183 2019 12 1.69813e+01 1.57736e+00 1765 2020 1 1.61939e+01 1.87484e+00 2605 2020 2 1.58974e+01 1.38916e+00 1851 2020 3 2.18986e+01 3.54056e+00 2695 2020 4 2.41531e+01 1.05443e+00 1934 2020 5 2.48283e+01 1.57836e+00 3300 2020 6 2.95085e+01 1.40134e+00 2225 2020 7 3.01406e+01 1.03680e+00 1947 2020 8 3.14911e+01 1.28424e+00 1331 2020 9 2.87394e+01 2.38124e+00 1252 2020 10 2.57011e+01 1.15261e+00 2365 2020 11 2.13360e+01 2.07836e+00 2684 2020 12 1.51039e+01 1.49758e+00 2691 2021 1 1.45228e+01 1.71554e+00 1924 2021 2 1.71506e+01 2.43516e+00 1971 2021 3 1.92144e+01 1.86863e+00 2287 2021 4 2.25111e+01 1.81511e+00 2631 2021 5 2.55717e+01 1.56165e+00 2861 2021 6 2.82380e+01 1.41404e+00 1251 2021 7 2.94908e+01 1.28308e+00 1458 2021 8 3.02696e+01 1.51923e+00 1741 2021 9 2.86080e+01 1.33419e+00 2002 2021 10 2.63469e+01 1.92023e+00 2310 2021 11 1.85386e+01 1.64200e+00 2748 2021 12 1.81273e+01 1.42891e+00 2488 2022 1 1.57912e+01 2.58704e+00 2580 2022 2 1.63925e+01 2.92368e+00 2383 2022 3 1.97033e+01 1.19156e+00 2857 2022 4 2.31483e+01 1.65524e+00 1931 2022 5 2.69112e+01 1.34458e+00 2903 2022 6 2.94944e+01 1.14865e+00 2757 2022 7 3.11073e+01 1.07676e+00 2213 2022 8 3.09401e+01 1.35151e+00 1881 2022 9 2.84399e+01 2.11661e+00 2105 2022 10 2.32091e+01 1.55666e+00 2953 2022 11 2.11697e+01 2.40393e+00 1632 2022 12 1.78216e+01 2.98014e+00 2905 2023 1 1.49831e+01 1.30576e+00 2617 2023 2 1.73838e+01 1.51856e+00 2082 2023 3 2.07892e+01 2.11796e+00 3009 2023 4 2.31938e+01 1.39292e+00 1996 2023 5 2.56702e+01 1.99646e+00 2706 2023 6 2.80770e+01 1.41765e+00 2059 2023 7 3.10164e+01 1.33350e+00 2793 2023 8 3.12308e+01 1.12114e+00 2840 2023 9 2.92225e+01 1.38444e+00 2202 2023 10 2.37230e+01 1.61664e+00 2552 2023 11 2.03097e+01 1.93696e+00 1856 2023 12 1.49777e+01 1.68861e+00 1252 2024 1 1.39909e+01 1.04187e+00 1249 2024 2 1.58715e+01 1.00408e+00 1891 2024 3 2.05839e+01 1.30387e+00 1831 2024 4 2.19698e+01 7.07915e-01 173