YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.81704e+01 1.89197e-01 178 2000 3 2.07249e+01 1.18284e+00 704 2000 4 2.18088e+01 8.96344e-01 574 2000 5 2.62577e+01 1.96333e+00 817 2000 6 2.76713e+01 9.44072e-01 384 2000 7 2.85826e+01 8.60345e-01 607 2000 8 2.98552e+01 3.06925e-01 209 2000 9 2.67984e+01 1.87487e+00 262 2000 10 2.28380e+01 1.88421e+00 820 2000 11 2.06029e+01 2.85062e+00 508 2000 12 1.43430e+01 7.25574e-01 23 2001 1 1.21542e+01 9.50584e-02 64 2001 2 1.69819e+01 2.39979e+00 383 2001 3 1.53509e+01 5.99135e-01 388 2001 4 2.15816e+01 2.20678e+00 768 2001 5 2.58004e+01 1.36043e+00 620 2001 6 2.75090e+01 9.02942e-01 149 2001 7 2.94565e+01 3.92166e-01 208 2001 8 2.88839e+01 1.29438e+00 745 2001 9 2.66708e+01 1.56908e+00 455 2001 10 2.21814e+01 1.45533e+00 543 2001 11 1.95209e+01 9.54365e-01 695 2001 12 1.83523e+01 2.88355e+00 657 2002 1 1.73194e+01 6.68973e-01 44 2002 2 1.55656e+01 1.85736e+00 509 2002 3 1.91508e+01 2.64331e+00 262 2002 4 2.48641e+01 2.38107e+00 506 2002 5 2.65358e+01 2.01175e+00 554 2002 6 2.80753e+01 1.37908e+00 373 2002 7 2.90362e+01 1.45126e+00 1513 2002 8 2.89099e+01 1.14608e+00 2131 2002 9 2.82350e+01 1.15685e+00 1644 2002 10 2.68778e+01 1.90201e+00 2582 2002 11 2.03506e+01 2.72864e+00 1853 2002 12 1.43594e+01 1.16166e+00 865 2003 1 1.14790e+01 1.42660e+00 1637 2003 2 1.46653e+01 1.78044e+00 906 2003 3 2.13004e+01 1.57536e+00 1259 2003 4 2.17671e+01 2.11370e+00 2754 2003 5 2.71249e+01 1.56752e+00 2651 2003 6 2.87018e+01 1.42743e+00 1735 2003 7 2.97493e+01 1.46288e+00 986 2003 8 2.91530e+01 1.29421e+00 1561 2003 9 2.76528e+01 1.15317e+00 1833 2003 10 2.38244e+01 1.24283e+00 2383 2003 11 2.14170e+01 2.15405e+00 2691 2003 12 1.41520e+01 1.35957e+00 1001 2004 1 1.31708e+01 1.19378e+00 1361 2004 2 1.34168e+01 8.71084e-01 450 2004 3 1.89553e+01 1.64053e+00 2469 2004 4 2.05034e+01 2.20868e+00 2169 2004 5 2.63928e+01 1.86608e+00 3462 2004 6 2.98903e+01 1.01875e+00 2217 2004 7 3.03061e+01 1.35650e+00 2194 2004 8 2.97996e+01 1.46798e+00 2161 2004 9 2.72203e+01 1.97904e+00 1904 2004 10 2.49118e+01 1.92174e+00 2521 2004 11 2.17375e+01 2.70082e+00 1865 2004 12 1.63809e+01 2.47401e+00 1143 2005 1 1.47360e+01 2.33221e+00 920 2005 2 1.43373e+01 1.41983e+00 960 2005 3 1.65975e+01 1.64251e+00 1624 2005 4 2.03948e+01 1.05259e+00 2643 2005 5 2.50343e+01 2.34799e+00 2593 2005 6 2.83865e+01 1.61957e+00 1921 2005 7 3.03379e+01 1.70777e+00 2132 2005 8 2.99102e+01 1.95318e+00 1983 2005 9 2.79706e+01 1.22045e+00 2413 2005 10 2.46881e+01 2.99741e+00 2518 2005 11 1.98008e+01 1.88620e+00 1693 2005 12 1.46886e+01 1.84779e+00 1258 2006 1 1.49205e+01 1.53072e+00 1613 2006 2 1.40976e+01 1.78176e+00 1563 2006 3 1.86009e+01 1.66737e+00 2700 2006 4 2.31602e+01 2.22820e+00 3162 2006 5 2.53715e+01 1.98056e+00 2990 2006 6 2.82771e+01 1.43803e+00 2723 2006 7 3.01804e+01 1.04146e+00 2559 2006 8 3.05079e+01 9.37541e-01 2364 2006 9 2.81187e+01 1.40492e+00 2458 2006 10 2.38930e+01 2.12154e+00 2829 2006 11 1.86252e+01 1.46391e+00 1409 2006 12 1.60361e+01 1.26201e+00 766 2007 1 1.47294e+01 1.54594e+00 1161 2007 2 1.33935e+01 1.28682e+00 1279 2007 3 1.90117e+01 1.70079e+00 2800 2007 4 2.07902e+01 2.26933e+00 2116 2007 5 2.45335e+01 9.99553e-01 2859 2007 6 2.80770e+01 1.59410e+00 1900 2007 7 3.01222e+01 1.89640e+00 1843 2007 8 3.07404e+01 1.08084e+00 2253 2007 9 2.79923e+01 1.58121e+00 1781 2007 10 2.58128e+01 1.12297e+00 1552 2007 11 1.86617e+01 1.49260e+00 2600 2007 12 1.73697e+01 1.72632e+00 1330 2008 1 1.32748e+01 2.02246e+00 580 2008 2 1.66987e+01 1.21387e+00 1323 2008 3 1.79213e+01 1.82112e+00 2101 2008 4 2.21386e+01 1.46024e+00 2635 2008 5 2.50002e+01 1.86331e+00 2586 2008 6 2.90876e+01 1.55385e+00 2627 2008 7 2.96865e+01 1.62230e+00 1791 2008 8 2.86745e+01 1.44095e+00 1391 2008 9 2.74519e+01 1.96889e+00 2205 2008 10 2.32314e+01 2.49745e+00 3049 2008 11 1.67797e+01 2.29791e+00 2108 2008 12 1.55412e+01 1.52647e+00 1364 2009 1 1.44224e+01 2.76926e+00 1676 2009 2 1.40558e+01 1.60762e+00 1602 2009 3 1.80961e+01 2.96536e+00 1931 2009 4 2.20548e+01 1.53813e+00 2109 2009 5 2.65530e+01 1.18595e+00 2198 2009 6 2.90807e+01 1.51662e+00 2657 2009 7 2.90001e+01 1.51375e+00 2135 2009 8 2.98621e+01 1.57326e+00 1880 2009 9 2.83473e+01 7.52628e-01 1934 2009 10 2.55958e+01 3.02682e+00 2604 2009 11 1.93487e+01 1.48687e+00 1771 2009 12 1.39693e+01 2.15488e+00 450 2010 1 1.10623e+01 3.05476e+00 1018 2010 2 1.17780e+01 1.29446e+00 1419 2010 3 1.55528e+01 2.13131e+00 1955 2010 4 2.19496e+01 1.41648e+00 2259 2010 5 2.69926e+01 1.91638e+00 3149 2010 6 3.05647e+01 1.30686e+00 2846 2010 7 3.01548e+01 1.67010e+00 2494 2010 8 2.99744e+01 1.41628e+00 1330 2010 9 2.90258e+01 1.63108e+00 2622 2010 10 2.42889e+01 1.05779e+00 4039 2010 11 1.92805e+01 1.60443e+00 2795 2010 12 1.40899e+01 2.99165e+00 1366 2011 1 1.11140e+01 1.34212e+00 1365 2011 2 1.46597e+01 2.45096e+00 1070 2011 3 1.95014e+01 1.79944e+00 2111 2011 4 2.39127e+01 1.66072e+00 3545 2011 5 2.59673e+01 1.77562e+00 3919 2011 6 2.96921e+01 1.52922e+00 2602 2011 7 2.96770e+01 1.06068e+00 1645 2011 8 3.05479e+01 1.39131e+00 2871 2011 9 2.81272e+01 1.10346e+00 2644 2011 10 2.31500e+01 2.24347e+00 2562 2011 11 1.84123e+01 1.30324e+00 2154 2011 12 1.59037e+01 7.60996e-01 1177 2012 1 1.52571e+01 1.82163e+00 1828 2012 2 1.54484e+01 1.82231e+00 649 2012 3 2.16436e+01 2.41449e+00 2576 2012 4 2.33511e+01 1.29770e+00 3195 2012 5 2.71866e+01 1.01961e+00 3238 2012 6 2.75038e+01 1.40737e+00 1817 2012 7 2.98171e+01 2.10387e+00 2042 2012 8 2.84810e+01 2.00219e+00 1755 2012 9 2.81690e+01 1.61684e+00 2246 2012 10 2.43936e+01 2.28545e+00 2276 2012 11 1.79864e+01 1.11843e+00 2032 2012 12 1.63723e+01 1.86084e+00 1319 2013 1 1.53160e+01 1.25426e+00 1220 2013 2 1.60150e+01 1.70889e+00 1573 2013 3 1.55786e+01 1.54670e+00 2318 2013 4 2.13312e+01 2.15226e+00 2102 2013 5 2.51462e+01 2.24245e+00 2506 2013 6 2.83008e+01 1.32363e+00 2203 2013 7 2.80352e+01 2.07924e+00 1319 2013 8 3.01136e+01 1.98604e+00 2145 2013 9 2.95950e+01 1.95777e+00 2558 2013 10 2.48872e+01 2.03583e+00 2055 2013 11 1.95659e+01 2.32018e+00 1647 2013 12 1.68013e+01 1.92585e+00 977 2014 1 1.24897e+01 1.03917e+00 1004 2014 2 1.50654e+01 1.84891e+00 1090 2014 3 1.74445e+01 1.80529e+00 1750 2014 4 2.16811e+01 1.93178e+00 2079 2014 5 2.56758e+01 1.51685e+00 2447 2014 6 2.90073e+01 1.90472e+00 1909 2014 7 3.00848e+01 1.33288e+00 2110 2014 8 2.97431e+01 1.21687e+00 2662 2014 9 2.82891e+01 1.66457e+00 939 2014 10 2.49336e+01 1.72825e+00 3397 2014 11 1.70040e+01 2.15941e+00 1835 2014 12 1.56705e+01 1.40440e+00 1349 2015 1 1.41327e+01 1.20572e+00 1553 2015 2 1.31616e+01 1.45241e+00 1452 2015 3 1.92485e+01 2.67473e+00 1732 2015 4 2.31037e+01 1.90526e+00 980 2015 5 2.70877e+01 1.96816e+00 3658 2015 6 3.00868e+01 1.26344e+00 2222 2015 7 2.96762e+01 1.17714e+00 1535 2015 8 3.00964e+01 1.70075e+00 2333 2015 9 2.80804e+01 2.18408e+00 975 2015 10 2.40756e+01 1.37999e+00 2186 2015 11 2.24842e+01 3.18540e+00 1993 2015 12 1.81718e+01 1.56517e+00 1007 2016 1 1.42236e+01 2.01303e+00 1329 2016 2 1.39067e+01 1.69796e+00 1366 2016 3 1.85610e+01 1.98829e+00 1495 2016 4 2.22444e+01 2.02792e+00 2097 2016 5 2.61933e+01 1.67607e+00 3030 2016 6 2.96164e+01 1.21733e+00 2456 2016 7 3.14105e+01 1.02020e+00 2810 2016 8 3.03801e+01 1.46407e+00 2377 2016 9 2.94016e+01 1.08915e+00 2328 2016 10 2.50049e+01 1.70700e+00 2400 2016 11 2.02156e+01 2.31557e+00 2541 2016 12 1.74784e+01 1.99966e+00 1192 2017 1 1.57583e+01 2.00668e+00 1323 2017 2 1.83284e+01 1.76429e+00 1904 2017 3 1.88832e+01 2.45771e+00 2607 2017 4 2.32388e+01 1.65589e+00 2557 2017 5 2.49688e+01 1.92508e+00 1826 2017 6 2.86750e+01 1.78160e+00 1505 2017 7 3.03686e+01 1.50714e+00 1248 2017 8 3.00332e+01 1.59499e+00 2081 2017 9 2.81282e+01 1.52971e+00 2246 2017 10 2.47389e+01 2.71514e+00 2627 2017 11 1.96886e+01 1.30782e+00 2756 2017 12 1.60242e+01 2.48573e+00 1181 2018 1 1.14993e+01 1.77890e+00 1061 2018 2 1.96250e+01 3.37631e+00 1167 2018 3 1.82062e+01 1.98558e+00 2436 2018 4 2.14184e+01 1.59209e+00 2397 2018 5 2.53699e+01 1.98634e+00 2149 2018 6 2.98548e+01 1.67129e+00 1891 2018 7 2.95245e+01 1.55477e+00 1462 2018 8 2.99880e+01 1.52079e+00 1797 2018 9 3.02447e+01 1.52401e+00 2735 2018 10 2.66985e+01 2.54773e+00 2515 2018 11 1.90429e+01 2.52466e+00 1309 2018 12 1.57626e+01 1.64092e+00 1206 2019 1 1.50392e+01 2.06976e+00 1520 2019 2 1.73687e+01 2.96963e+00 1016 2019 3 1.83757e+01 1.78686e+00 2045 2019 4 2.23700e+01 1.71329e+00 2036 2019 5 2.77830e+01 2.02218e+00 3228 2019 6 2.90347e+01 1.44431e+00 1979 2019 7 3.00690e+01 1.47413e+00 1835 2019 8 3.03098e+01 1.19164e+00 1889 2019 9 2.90454e+01 1.28197e+00 3077 2019 10 2.60247e+01 2.01084e+00 2214 2019 11 1.88697e+01 2.70047e+00 1895 2019 12 1.59975e+01 1.51288e+00 1583 2020 1 1.58769e+01 1.92637e+00 2000 2020 2 1.55457e+01 1.37700e+00 1561 2020 3 2.20351e+01 3.57744e+00 2653 2020 4 2.40423e+01 1.13115e+00 2133 2020 5 2.51108e+01 1.58780e+00 2803 2020 6 2.94611e+01 1.62116e+00 2041 2020 7 3.01095e+01 1.36503e+00 2052 2020 8 3.10900e+01 1.42902e+00 1583 2020 9 2.82718e+01 2.35595e+00 1775 2020 10 2.56432e+01 1.01305e+00 2199 2020 11 2.12391e+01 1.91390e+00 2955 2020 12 1.45700e+01 1.55250e+00 2530 2021 1 1.39356e+01 1.95137e+00 1942 2021 2 1.64640e+01 2.43501e+00 1675 2021 3 1.91173e+01 1.95017e+00 2217 2021 4 2.18328e+01 1.67973e+00 2273 2021 5 2.55474e+01 1.61947e+00 2400 2021 6 2.79049e+01 1.50526e+00 1316 2021 7 2.92496e+01 1.08893e+00 1405 2021 8 3.01729e+01 1.72500e+00 1582 2021 9 2.85371e+01 1.28295e+00 1911 2021 10 2.54109e+01 2.13876e+00 2412 2021 11 1.83113e+01 1.50519e+00 2617 2021 12 1.76847e+01 1.41506e+00 2459 2022 1 1.53837e+01 2.74834e+00 2659 2022 2 1.59662e+01 2.61216e+00 2300 2022 3 1.95512e+01 1.11289e+00 2745 2022 4 2.33493e+01 1.49710e+00 1982 2022 5 2.70477e+01 1.28930e+00 2844 2022 6 2.98851e+01 1.02177e+00 2476 2022 7 3.03598e+01 1.20290e+00 2004 2022 8 3.10320e+01 1.26037e+00 1892 2022 9 2.80768e+01 1.78577e+00 1570 2022 10 2.27240e+01 1.72238e+00 3343 2022 11 2.09032e+01 2.36000e+00 1679 2022 12 1.70787e+01 3.59147e+00 3380 2023 1 1.48534e+01 1.31955e+00 2617 2023 2 1.70064e+01 1.57527e+00 1900 2023 3 2.05448e+01 2.18771e+00 2428 2023 4 2.32961e+01 1.16967e+00 1711 2023 5 2.56752e+01 2.03599e+00 2492 2023 6 2.77461e+01 1.69698e+00 2255 2023 7 3.07855e+01 1.37437e+00 2954 2023 8 3.11571e+01 1.02285e+00 2666 2023 9 2.91557e+01 1.31306e+00 2062 2023 10 2.33818e+01 1.56161e+00 2575 2023 11 2.00127e+01 1.92543e+00 1949 2023 12 1.42153e+01 1.28717e+00 1404 2024 1 1.35397e+01 1.78586e+00 1322 2024 2 1.56285e+01 1.01105e+00 2147 2024 3 2.03277e+01 1.21049e+00 1721 2024 4 2.20020e+01 7.04626e-01 174