YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.84855e+01 1.19745e-01 106 2000 3 2.08093e+01 1.56475e+00 747 2000 4 2.21344e+01 1.05209e+00 754 2000 5 2.59239e+01 1.80620e+00 816 2000 6 2.84347e+01 8.43606e-01 384 2000 7 2.89372e+01 7.07690e-01 354 2000 8 2.92412e+01 1.25891e+00 267 2000 9 2.68189e+01 1.52419e+00 469 2000 10 2.32398e+01 2.02615e+00 817 2000 11 2.10546e+01 2.46451e+00 511 2000 12 1.67666e+01 1.07058e+00 150 2001 1 1.22277e+01 6.77249e-02 64 2001 2 1.79302e+01 2.15374e+00 563 2001 3 1.68387e+01 1.51163e+00 520 2001 4 2.17397e+01 1.99537e+00 637 2001 5 2.51929e+01 1.23650e+00 797 2001 6 2.85586e+01 1.55664e+00 261 2001 7 2.89558e+01 5.71232e-01 145 2001 8 3.01826e+01 7.86790e-01 414 2001 9 2.67065e+01 1.73549e+00 438 2001 10 2.27241e+01 1.42862e+00 406 2001 11 1.97105e+01 9.30761e-01 781 2001 12 1.96615e+01 2.37833e+00 644 2002 1 1.66466e+01 2.14991e+00 208 2002 2 1.67537e+01 1.82504e+00 323 2002 3 1.89639e+01 2.17430e+00 240 2002 4 2.44469e+01 1.61185e+00 472 2002 5 2.61755e+01 1.73043e+00 833 2002 6 2.82936e+01 1.28463e+00 400 2002 7 2.95004e+01 1.02771e+00 1556 2002 8 2.87141e+01 1.17814e+00 1848 2002 9 2.88051e+01 1.17940e+00 1971 2002 10 2.72197e+01 1.77760e+00 2852 2002 11 2.02283e+01 2.73266e+00 1782 2002 12 1.48696e+01 1.01727e+00 771 2003 1 1.19754e+01 1.51200e+00 1526 2003 2 1.51683e+01 1.93414e+00 896 2003 3 2.12871e+01 1.93473e+00 1257 2003 4 2.18878e+01 2.38287e+00 2670 2003 5 2.74639e+01 1.64517e+00 2551 2003 6 2.79425e+01 1.79521e+00 1559 2003 7 2.92432e+01 2.09015e+00 1376 2003 8 2.85750e+01 1.23933e+00 1846 2003 9 2.79826e+01 1.54382e+00 1639 2003 10 2.44024e+01 1.38654e+00 2589 2003 11 2.17142e+01 1.94966e+00 2832 2003 12 1.47653e+01 1.53896e+00 1033 2004 1 1.35643e+01 1.11169e+00 1584 2004 2 1.47209e+01 1.29911e+00 861 2004 3 1.90218e+01 1.79540e+00 2603 2004 4 2.05756e+01 1.75232e+00 2857 2004 5 2.62568e+01 1.80276e+00 3773 2004 6 3.02680e+01 1.15731e+00 2169 2004 7 3.03118e+01 1.51318e+00 2219 2004 8 2.96163e+01 1.54087e+00 2147 2004 9 2.71709e+01 2.08201e+00 2027 2004 10 2.50783e+01 2.01631e+00 2566 2004 11 2.17467e+01 2.54381e+00 2454 2004 12 1.64421e+01 2.27368e+00 1439 2005 1 1.43489e+01 2.13843e+00 1168 2005 2 1.51821e+01 1.23373e+00 1299 2005 3 1.74453e+01 2.05420e+00 1849 2005 4 2.08467e+01 1.12581e+00 2868 2005 5 2.52963e+01 2.00155e+00 3128 2005 6 2.83914e+01 1.64129e+00 1928 2005 7 3.05970e+01 1.72163e+00 2270 2005 8 3.09089e+01 1.73408e+00 2091 2005 9 2.78534e+01 1.26973e+00 2777 2005 10 2.50574e+01 3.07449e+00 2836 2005 11 2.00268e+01 1.91005e+00 1937 2005 12 1.51983e+01 2.03704e+00 1579 2006 1 1.52432e+01 1.52451e+00 1622 2006 2 1.46435e+01 1.73626e+00 1693 2006 3 1.89758e+01 1.46235e+00 2859 2006 4 2.30360e+01 2.43086e+00 2906 2006 5 2.53908e+01 1.74153e+00 3455 2006 6 2.83652e+01 1.25196e+00 3111 2006 7 3.00439e+01 1.38281e+00 2758 2006 8 3.05167e+01 1.26393e+00 2169 2006 9 2.87075e+01 1.40140e+00 2444 2006 10 2.44470e+01 2.08791e+00 2804 2006 11 1.94350e+01 1.37095e+00 1411 2006 12 1.67492e+01 1.48111e+00 736 2007 1 1.49226e+01 1.66798e+00 1001 2007 2 1.40415e+01 1.68007e+00 1340 2007 3 1.92698e+01 1.77223e+00 3003 2007 4 2.12176e+01 1.70829e+00 2373 2007 5 2.43889e+01 1.31377e+00 3643 2007 6 2.80384e+01 1.64079e+00 2559 2007 7 3.01100e+01 1.81808e+00 2185 2007 8 3.07342e+01 1.19115e+00 2507 2007 9 2.87176e+01 1.43473e+00 2089 2007 10 2.64174e+01 1.02547e+00 2002 2007 11 1.94752e+01 1.66559e+00 2890 2007 12 1.82636e+01 1.82555e+00 2029 2008 1 1.36813e+01 2.25810e+00 730 2008 2 1.71728e+01 1.72878e+00 1686 2008 3 1.81120e+01 1.61833e+00 2434 2008 4 2.22443e+01 1.65240e+00 2880 2008 5 2.52441e+01 1.67007e+00 2836 2008 6 2.92251e+01 1.28728e+00 2476 2008 7 2.99060e+01 1.56965e+00 1570 2008 8 2.86390e+01 1.53962e+00 1795 2008 9 2.78155e+01 1.91973e+00 2527 2008 10 2.34000e+01 2.53458e+00 3251 2008 11 1.70318e+01 2.40052e+00 2302 2008 12 1.60156e+01 1.41671e+00 1685 2009 1 1.48262e+01 2.59778e+00 1873 2009 2 1.44429e+01 1.85494e+00 1846 2009 3 1.82860e+01 2.87683e+00 2423 2009 4 2.24177e+01 2.19379e+00 2502 2009 5 2.63050e+01 1.65759e+00 2286 2009 6 2.90786e+01 1.51176e+00 2870 2009 7 2.94770e+01 1.35942e+00 1793 2009 8 2.97759e+01 1.80278e+00 2249 2009 9 2.87006e+01 1.26684e+00 2244 2009 10 2.61126e+01 2.94386e+00 2936 2009 11 1.97192e+01 1.55360e+00 1948 2009 12 1.43515e+01 1.91617e+00 448 2010 1 1.12220e+01 3.24888e+00 1378 2010 2 1.24674e+01 1.53452e+00 1524 2010 3 1.56149e+01 2.28677e+00 2072 2010 4 2.15012e+01 1.49786e+00 2005 2010 5 2.69736e+01 2.05514e+00 3236 2010 6 3.05744e+01 1.36453e+00 2516 2010 7 2.98169e+01 1.53991e+00 2624 2010 8 3.01929e+01 2.01084e+00 1534 2010 9 2.91984e+01 1.60483e+00 2700 2010 10 2.46263e+01 1.19576e+00 4234 2010 11 1.96270e+01 1.49652e+00 2748 2010 12 1.37631e+01 3.24504e+00 1625 2011 1 1.16242e+01 1.10672e+00 1403 2011 2 1.53404e+01 2.30038e+00 1051 2011 3 1.94857e+01 1.65730e+00 2238 2011 4 2.40681e+01 1.51482e+00 3523 2011 5 2.61902e+01 1.68978e+00 4359 2011 6 2.96295e+01 1.42752e+00 2442 2011 7 2.98617e+01 1.45283e+00 2074 2011 8 3.05637e+01 1.47553e+00 2654 2011 9 2.83928e+01 1.10037e+00 2841 2011 10 2.34801e+01 2.17945e+00 2560 2011 11 1.91975e+01 1.17194e+00 2074 2011 12 1.65612e+01 1.13567e+00 1739 2012 1 1.54574e+01 1.83688e+00 1892 2012 2 1.70961e+01 2.40549e+00 804 2012 3 2.16535e+01 2.26419e+00 3003 2012 4 2.35425e+01 1.31282e+00 3443 2012 5 2.70608e+01 1.14451e+00 2946 2012 6 2.76147e+01 1.26881e+00 1756 2012 7 2.99127e+01 1.71239e+00 2423 2012 8 2.97117e+01 1.50555e+00 1849 2012 9 2.83500e+01 1.31195e+00 2436 2012 10 2.46617e+01 2.55041e+00 2563 2012 11 1.83828e+01 1.07438e+00 2174 2012 12 1.72779e+01 1.93041e+00 1698 2013 1 1.61833e+01 1.32075e+00 1137 2013 2 1.61840e+01 1.66684e+00 1876 2013 3 1.63862e+01 1.75906e+00 2798 2013 4 2.14763e+01 2.26186e+00 2167 2013 5 2.48752e+01 2.35885e+00 2866 2013 6 2.88385e+01 1.96125e+00 2587 2013 7 2.87146e+01 2.07459e+00 1339 2013 8 2.99043e+01 1.80856e+00 2482 2013 9 2.94389e+01 1.97708e+00 2775 2013 10 2.51890e+01 2.02908e+00 2996 2013 11 1.98038e+01 2.42097e+00 1276 2013 12 1.70232e+01 1.62639e+00 1198 2014 1 1.35903e+01 1.34008e+00 868 2014 2 1.62663e+01 2.62873e+00 1224 2014 3 1.80740e+01 2.04513e+00 2298 2014 4 2.15930e+01 2.12964e+00 2101 2014 5 2.56121e+01 1.62850e+00 2486 2014 6 2.87668e+01 1.88839e+00 2183 2014 7 3.04710e+01 1.69890e+00 1819 2014 8 2.97651e+01 1.40532e+00 2720 2014 9 2.84189e+01 1.55453e+00 1420 2014 10 2.53097e+01 2.04062e+00 3435 2014 11 1.75421e+01 2.18451e+00 1643 2014 12 1.66519e+01 1.44806e+00 1728 2015 1 1.46602e+01 1.35630e+00 1511 2015 2 1.39276e+01 1.49802e+00 1685 2015 3 2.00844e+01 2.20081e+00 1967 2015 4 2.36987e+01 1.80708e+00 1198 2015 5 2.69601e+01 1.91299e+00 3759 2015 6 3.02518e+01 1.56370e+00 2313 2015 7 2.94502e+01 1.46079e+00 1566 2015 8 2.96728e+01 1.71137e+00 2532 2015 9 2.75577e+01 1.39841e+00 1380 2015 10 2.42657e+01 1.55686e+00 2399 2015 11 2.29896e+01 2.97654e+00 2219 2015 12 1.86329e+01 1.42748e+00 1023 2016 1 1.48347e+01 1.90926e+00 1405 2016 2 1.52049e+01 1.87199e+00 1696 2016 3 1.90346e+01 2.31994e+00 1157 2016 4 2.25437e+01 2.20390e+00 2360 2016 5 2.63494e+01 1.63517e+00 2918 2016 6 2.99340e+01 1.34497e+00 2917 2016 7 3.14137e+01 1.30633e+00 3285 2016 8 3.01255e+01 1.41231e+00 2079 2016 9 2.95370e+01 1.34785e+00 2682 2016 10 2.48844e+01 1.87646e+00 3023 2016 11 2.05875e+01 2.41805e+00 2597 2016 12 1.86773e+01 1.42568e+00 1818 2017 1 1.61580e+01 1.57914e+00 1471 2017 2 1.85011e+01 1.60824e+00 2040 2017 3 1.90690e+01 2.09886e+00 2902 2017 4 2.35797e+01 1.45962e+00 3038 2017 5 2.53394e+01 1.62146e+00 2611 2017 6 2.88175e+01 1.79468e+00 1687 2017 7 3.04782e+01 1.79604e+00 1484 2017 8 3.01898e+01 1.44799e+00 2208 2017 9 2.83647e+01 1.79418e+00 2403 2017 10 2.51732e+01 2.72287e+00 2740 2017 11 2.02056e+01 1.39167e+00 2777 2017 12 1.77108e+01 2.66066e+00 1506 2018 1 1.15758e+01 1.87270e+00 1168 2018 2 1.93879e+01 3.53725e+00 1544 2018 3 1.85275e+01 2.03201e+00 2989 2018 4 2.17052e+01 1.38720e+00 2503 2018 5 2.53299e+01 1.67916e+00 1801 2018 6 2.93201e+01 1.88867e+00 2051 2018 7 2.99533e+01 1.63029e+00 1396 2018 8 3.02465e+01 1.32305e+00 1885 2018 9 3.02299e+01 1.32712e+00 3213 2018 10 2.69471e+01 2.30829e+00 3247 2018 11 2.01652e+01 2.26239e+00 1397 2018 12 1.67636e+01 1.84066e+00 1530 2019 1 1.56338e+01 2.06553e+00 1573 2019 2 1.74088e+01 3.31362e+00 1308 2019 3 1.91040e+01 1.56554e+00 2389 2019 4 2.29639e+01 2.03580e+00 2071 2019 5 2.77159e+01 1.82562e+00 3275 2019 6 2.90841e+01 1.91298e+00 2234 2019 7 3.00273e+01 1.42992e+00 1760 2019 8 3.00642e+01 1.14310e+00 1866 2019 9 2.90075e+01 1.24306e+00 3501 2019 10 2.63684e+01 1.73720e+00 2400 2019 11 1.93436e+01 2.51832e+00 2192 2019 12 1.72612e+01 1.37122e+00 1735 2020 1 1.65867e+01 1.89558e+00 2455 2020 2 1.62487e+01 1.48077e+00 1790 2020 3 2.22206e+01 3.61503e+00 2570 2020 4 2.40359e+01 1.10035e+00 2208 2020 5 2.50485e+01 1.53550e+00 3143 2020 6 2.96008e+01 1.40040e+00 2041 2020 7 2.98083e+01 1.40339e+00 2211 2020 8 3.14111e+01 1.41868e+00 1199 2020 9 2.85473e+01 2.18137e+00 1545 2020 10 2.59473e+01 1.04751e+00 2498 2020 11 2.14926e+01 1.88845e+00 2697 2020 12 1.51733e+01 1.49873e+00 2985 2021 1 1.45727e+01 2.03132e+00 1844 2021 2 1.74669e+01 2.50790e+00 2029 2021 3 1.94385e+01 1.99352e+00 2240 2021 4 2.25447e+01 1.91032e+00 2729 2021 5 2.56565e+01 1.55968e+00 3056 2021 6 2.81847e+01 1.60548e+00 1479 2021 7 2.94341e+01 1.65183e+00 1731 2021 8 3.02416e+01 1.49643e+00 1657 2021 9 2.86137e+01 1.44456e+00 2002 2021 10 2.61457e+01 2.12483e+00 2184 2021 11 1.84751e+01 1.55641e+00 2744 2021 12 1.82089e+01 1.58169e+00 2808 2022 1 1.58255e+01 2.53766e+00 2676 2022 2 1.61952e+01 2.96518e+00 2511 2022 3 1.99711e+01 1.22158e+00 2720 2022 4 2.32635e+01 1.40020e+00 2008 2022 5 2.69706e+01 1.45987e+00 2955 2022 6 2.96037e+01 1.16643e+00 2482 2022 7 3.09943e+01 1.01015e+00 2077 2022 8 3.11053e+01 1.35673e+00 1982 2022 9 2.86551e+01 2.13441e+00 1836 2022 10 2.33032e+01 1.73893e+00 3161 2022 11 2.18404e+01 2.32631e+00 1538 2022 12 1.75667e+01 3.41195e+00 3033 2023 1 1.51949e+01 1.23212e+00 2550 2023 2 1.76960e+01 1.63246e+00 2195 2023 3 2.07921e+01 2.13124e+00 2824 2023 4 2.35129e+01 1.38341e+00 2144 2023 5 2.57901e+01 2.04394e+00 2711 2023 6 2.81123e+01 1.37213e+00 2218 2023 7 3.10888e+01 1.41837e+00 2414 2023 8 3.13530e+01 1.32966e+00 2538 2023 9 2.94794e+01 1.46610e+00 2513 2023 10 2.37176e+01 1.82479e+00 2748 2023 11 2.06618e+01 1.83972e+00 2005 2023 12 1.51079e+01 1.76883e+00 1240 2024 1 1.42439e+01 1.43768e+00 1353 2024 2 1.61651e+01 1.29138e+00 2021 2024 3 2.08607e+01 1.17355e+00 1846 2024 4 2.23342e+01 6.33339e-01 216