YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.92845e+01 5.48772e-02 64 2000 3 2.17826e+01 7.90541e-01 677 2000 4 2.32655e+01 7.17194e-01 655 2000 5 2.59601e+01 1.34951e+00 537 2000 6 2.82810e+01 7.08185e-01 195 2000 7 2.90143e+01 1.92600e+00 421 2000 8 2.97823e+01 1.14730e-01 126 2000 9 2.95854e+01 6.35714e-01 565 2000 10 2.64715e+01 1.35337e+00 654 2000 11 2.43338e+01 9.96286e-01 616 2000 12 2.09288e+01 1.40044e+00 953 2001 1 1.81094e+01 6.29231e-01 320 2001 2 1.88354e+01 7.12837e-01 330 2001 3 2.05424e+01 4.13252e-01 555 2001 4 2.21097e+01 1.81296e+00 446 2001 5 2.31942e+01 1.03834e+00 565 2001 6 2.83797e+01 9.42935e-01 320 2001 7 2.92837e+01 3.76338e-01 320 2001 8 3.01634e+01 5.87422e-01 326 2001 9 2.83540e+01 1.51130e+00 322 2001 10 2.78666e+01 7.42348e-01 135 2001 11 2.29254e+01 6.28440e-01 960 2001 12 2.33048e+01 6.21920e-01 707 2002 1 2.07030e+01 1.18420e+00 655 2002 2 1.99513e+01 1.27285e+00 388 2002 3 1.92393e+01 1.06069e+00 253 2002 4 2.45978e+01 1.11466e+00 739 2002 5 2.69399e+01 4.05261e-01 715 2002 6 2.65838e+01 1.52061e+00 226 2002 7 2.89653e+01 1.21947e+00 1498 2002 8 3.01436e+01 1.14198e+00 1335 2002 9 2.95987e+01 1.01971e+00 1915 2002 10 2.87735e+01 9.48167e-01 3657 2002 11 2.58662e+01 2.26466e+00 2356 2002 12 2.07115e+01 1.42860e+00 1577 2003 1 1.72930e+01 1.26242e+00 1839 2003 2 1.76518e+01 1.52589e+00 1340 2003 3 2.24576e+01 1.28790e+00 1253 2003 4 2.23539e+01 1.42759e+00 2624 2003 5 2.69862e+01 1.58178e+00 3321 2003 6 2.86105e+01 1.05618e+00 1671 2003 7 2.99707e+01 1.22750e+00 1448 2003 8 2.98291e+01 1.60865e+00 1265 2003 9 2.94300e+01 8.36996e-01 1759 2003 10 2.71877e+01 1.38753e+00 2802 2003 11 2.40406e+01 9.60641e-01 2703 2003 12 2.02933e+01 1.48891e+00 2335 2004 1 1.84852e+01 5.44757e-01 2223 2004 2 1.83820e+01 7.83176e-01 1407 2004 3 2.02689e+01 1.30518e+00 2301 2004 4 2.17291e+01 1.33844e+00 2517 2004 5 2.55518e+01 1.54932e+00 3404 2004 6 2.92299e+01 9.19915e-01 3042 2004 7 2.97946e+01 1.18779e+00 2415 2004 8 2.99753e+01 1.29488e+00 2632 2004 9 2.87305e+01 1.60399e+00 2001 2004 10 2.72083e+01 1.14104e+00 3410 2004 11 2.47922e+01 1.10781e+00 3179 2004 12 2.14654e+01 1.72012e+00 1813 2005 1 1.89763e+01 6.57172e-01 2096 2005 2 1.83202e+01 9.85349e-01 2112 2005 3 1.95916e+01 1.28759e+00 1480 2005 4 2.19930e+01 7.01459e-01 3136 2005 5 2.51029e+01 1.81589e+00 2892 2005 6 2.81553e+01 1.37052e+00 977 2005 7 2.94549e+01 1.44814e+00 3030 2005 8 3.06949e+01 1.50044e+00 2061 2005 9 2.87002e+01 1.26310e+00 2220 2005 10 2.70778e+01 1.22101e+00 2402 2005 11 2.36494e+01 6.47045e-01 2878 2005 12 2.13135e+01 1.26940e+00 2158 2006 1 1.94871e+01 7.33658e-01 2026 2006 2 1.86826e+01 7.96576e-01 1901 2006 3 2.03949e+01 1.07525e+00 2838 2006 4 2.35039e+01 1.66816e+00 2777 2006 5 2.59728e+01 1.40872e+00 2618 2006 6 2.84791e+01 1.30614e+00 2830 2006 7 2.89920e+01 1.27842e+00 2125 2006 8 3.02536e+01 1.56300e+00 2591 2006 9 3.01021e+01 1.20961e+00 2340 2006 10 2.81205e+01 1.54603e+00 3442 2006 11 2.34585e+01 1.67124e+00 1775 2006 12 2.06797e+01 8.76521e-01 1380 2007 1 2.08358e+01 7.55610e-01 1867 2007 2 1.86072e+01 7.38260e-01 1375 2007 3 2.04037e+01 1.26056e+00 2593 2007 4 2.24293e+01 1.34034e+00 2823 2007 5 2.46700e+01 1.13910e+00 3458 2007 6 2.73663e+01 1.63277e+00 2414 2007 7 3.08100e+01 1.08661e+00 2036 2007 8 3.06814e+01 7.57513e-01 2724 2007 9 3.03464e+01 1.25053e+00 2138 2007 10 2.82535e+01 7.74664e-01 2156 2007 11 2.44037e+01 1.40768e+00 3608 2007 12 2.27965e+01 8.00819e-01 2813 2008 1 1.94652e+01 1.00694e+00 2031 2008 2 2.04111e+01 9.77869e-01 1629 2008 3 2.10070e+01 9.65884e-01 2290 2008 4 2.35318e+01 8.01906e-01 3363 2008 5 2.60926e+01 1.33188e+00 3545 2008 6 2.89917e+01 1.01004e+00 2592 2008 7 2.95618e+01 1.43933e+00 1967 2008 8 2.97097e+01 1.49902e+00 2063 2008 9 2.89591e+01 1.43974e+00 1970 2008 10 2.71450e+01 1.21521e+00 2537 2008 11 2.23466e+01 1.21658e+00 2819 2008 12 2.00895e+01 6.20155e-01 2721 2009 1 1.96193e+01 9.14427e-01 2506 2009 2 1.72581e+01 9.48105e-01 2037 2009 3 1.95130e+01 1.77286e+00 2922 2009 4 2.30383e+01 1.04803e+00 3176 2009 5 2.59429e+01 1.50726e+00 2738 2009 6 2.82588e+01 1.35997e+00 2716 2009 7 2.97308e+01 1.34158e+00 2394 2009 8 3.04650e+01 1.23812e+00 2394 2009 9 2.99430e+01 1.59456e+00 1866 2009 10 2.91065e+01 1.68888e+00 3338 2009 11 2.47456e+01 1.64076e+00 1863 2009 12 2.17546e+01 1.23287e+00 1261 2010 1 1.73456e+01 1.58309e+00 1367 2010 2 1.66093e+01 8.53409e-01 1130 2010 3 1.62665e+01 1.11552e+00 1900 2010 4 2.06938e+01 1.78458e+00 1850 2010 5 2.66347e+01 1.66635e+00 3293 2010 6 2.98486e+01 1.18104e+00 3554 2010 7 2.86699e+01 1.33085e+00 2192 2010 8 3.01858e+01 1.12007e+00 1686 2010 9 2.96457e+01 1.20716e+00 2784 2010 10 2.69990e+01 1.07724e+00 3561 2010 11 2.36707e+01 1.19356e+00 2964 2010 12 1.94305e+01 2.08338e+00 2479 2011 1 1.61528e+01 8.99626e-01 1757 2011 2 1.75146e+01 9.27049e-01 1403 2011 3 2.01029e+01 1.48153e+00 2592 2011 4 2.48565e+01 1.32010e+00 3121 2011 5 2.71862e+01 1.24188e+00 3176 2011 6 2.90628e+01 1.07209e+00 2571 2011 7 3.02379e+01 1.34361e+00 1966 2011 8 3.07845e+01 1.25181e+00 2033 2011 9 2.98312e+01 8.80455e-01 2351 2011 10 2.78686e+01 2.00524e+00 1598 2011 11 2.30588e+01 8.55369e-01 3127 2011 12 2.12890e+01 6.78905e-01 2765 2012 1 1.96308e+01 8.10878e-01 2888 2012 2 2.03252e+01 1.07699e+00 1575 2012 3 2.24852e+01 1.19684e+00 3639 2012 4 2.45171e+01 1.01862e+00 2825 2012 5 2.68153e+01 1.29642e+00 2641 2012 6 2.80945e+01 1.58805e+00 1756 2012 7 2.93588e+01 1.11304e+00 1942 2012 8 2.97828e+01 1.52273e+00 2105 2012 9 2.86734e+01 1.04336e+00 2241 2012 10 2.72750e+01 1.52386e+00 2314 2012 11 2.24845e+01 1.42097e+00 2676 2012 12 2.09303e+01 1.15627e+00 2303 2013 1 2.03218e+01 7.76358e-01 2029 2013 2 2.00865e+01 7.89308e-01 2323 2013 3 1.95354e+01 8.67737e-01 2310 2013 4 2.26970e+01 2.10346e+00 2702 2013 5 2.54039e+01 1.05377e+00 3009 2013 6 2.84699e+01 1.63174e+00 2232 2013 7 2.93528e+01 1.22749e+00 1766 2013 8 3.01263e+01 1.17090e+00 1777 2013 9 2.97790e+01 1.48981e+00 1996 2013 10 2.79436e+01 1.04194e+00 2577 2013 11 2.45149e+01 1.31801e+00 2208 2013 12 2.23174e+01 6.36671e-01 2372 2014 1 1.94246e+01 1.49031e+00 1597 2014 2 1.98559e+01 7.94921e-01 1847 2014 3 2.12889e+01 7.96180e-01 2176 2014 4 2.29747e+01 2.17253e+00 2013 2014 5 2.62460e+01 9.70233e-01 2320 2014 6 2.91280e+01 1.66087e+00 2192 2014 7 3.02394e+01 1.52941e+00 2479 2014 8 3.09815e+01 1.18703e+00 2625 2014 9 3.00186e+01 1.75053e+00 1792 2014 10 2.81005e+01 1.44190e+00 2705 2014 11 2.34643e+01 1.66862e+00 2236 2014 12 2.03853e+01 6.56251e-01 2348 2015 1 2.00290e+01 1.04949e+00 1766 2015 2 1.85168e+01 6.03672e-01 1976 2015 3 2.24103e+01 1.70958e+00 3000 2015 4 2.50545e+01 1.79330e+00 2712 2015 5 2.76479e+01 1.24124e+00 3522 2015 6 2.97722e+01 1.30619e+00 2173 2015 7 3.01313e+01 1.14248e+00 2050 2015 8 3.05138e+01 1.26906e+00 1674 2015 9 2.95878e+01 1.42346e+00 971 2015 10 2.78838e+01 1.49473e+00 2180 2015 11 2.62446e+01 1.11100e+00 3125 2015 12 2.30922e+01 7.46189e-01 1861 2016 1 2.16217e+01 2.14676e+00 973 2016 2 1.83060e+01 1.28889e+00 1591 2016 3 2.07807e+01 1.58736e+00 1111 2016 4 2.35752e+01 1.00495e+00 2643 2016 5 2.62001e+01 1.88563e+00 2793 2016 6 2.89215e+01 1.56684e+00 2346 2016 7 3.04802e+01 9.01193e-01 2227 2016 8 3.01497e+01 1.11228e+00 2112 2016 9 2.95788e+01 1.36759e+00 2529 2016 10 2.70843e+01 1.66427e+00 2589 2016 11 2.38956e+01 1.21388e+00 2873 2016 12 2.23112e+01 7.17256e-01 2748 2017 1 2.04007e+01 8.83434e-01 2264 2017 2 2.03849e+01 8.23887e-01 2320 2017 3 2.15154e+01 9.48057e-01 3263 2017 4 2.34890e+01 9.25269e-01 2780 2017 5 2.64032e+01 1.40430e+00 3064 2017 6 2.82891e+01 1.80587e+00 1411 2017 7 3.02927e+01 1.05116e+00 2193 2017 8 3.09879e+01 1.20689e+00 2049 2017 9 2.97292e+01 8.95244e-01 2406 2017 10 2.79547e+01 1.29201e+00 2123 2017 11 2.41808e+01 7.77692e-01 3466 2017 12 2.26028e+01 1.15619e+00 3201 2018 1 1.83567e+01 1.35449e+00 1842 2018 2 2.06056e+01 2.34285e+00 2841 2018 3 2.12020e+01 1.13338e+00 3458 2018 4 2.36888e+01 1.07858e+00 2571 2018 5 2.41423e+01 9.82822e-01 1553 2018 6 2.90652e+01 1.60667e+00 2344 2018 7 3.05772e+01 9.75745e-01 2271 2018 8 3.04008e+01 1.09064e+00 2488 2018 9 3.00461e+01 1.34218e+00 2267 2018 10 2.82019e+01 1.19602e+00 2894 2018 11 2.54713e+01 1.17302e+00 2338 2018 12 2.16757e+01 1.80588e+00 2168 2019 1 1.98511e+01 1.10405e+00 1848 2019 2 2.04533e+01 1.62437e+00 2134 2019 3 2.23262e+01 9.34824e-01 2836 2019 4 2.42465e+01 1.09668e+00 2696 2019 5 2.75390e+01 1.25030e+00 3109 2019 6 3.02886e+01 1.22037e+00 2333 2019 7 3.04675e+01 1.13734e+00 2207 2019 8 3.02052e+01 1.11332e+00 1734 2019 9 2.96567e+01 1.02627e+00 3217 2019 10 2.82162e+01 5.36052e-01 2766 2019 11 2.57791e+01 1.75876e+00 2734 2019 12 2.23210e+01 1.00808e+00 2074 2020 1 2.09826e+01 8.68610e-01 2905 2020 2 2.03324e+01 1.18148e+00 2191 2020 3 2.26589e+01 2.01108e+00 3452 2020 4 2.57836e+01 9.98952e-01 2158 2020 5 2.64684e+01 1.12815e+00 2380 2020 6 2.97899e+01 1.43392e+00 1937 2020 7 3.07696e+01 1.00599e+00 2349 2020 8 3.07815e+01 1.26056e+00 1611 2020 9 3.01359e+01 1.17734e+00 2000 2020 10 2.80434e+01 8.49641e-01 1895 2020 11 2.53091e+01 1.22079e+00 2636 2020 12 2.14080e+01 1.40143e+00 2620 2021 1 1.90069e+01 7.62527e-01 1742 2021 2 2.03925e+01 1.12831e+00 2576 2021 3 2.15786e+01 1.10703e+00 3182 2021 4 2.37462e+01 1.39881e+00 3175 2021 5 2.69932e+01 1.00796e+00 3328 2021 6 2.80364e+01 9.28265e-01 1050 2021 7 2.98768e+01 1.31485e+00 2545 2021 8 3.06032e+01 1.10372e+00 1979 2021 9 3.02418e+01 8.94669e-01 2068 2021 10 2.89969e+01 8.99402e-01 2652 2021 11 2.42086e+01 1.48568e+00 2631 2021 12 2.23519e+01 4.40566e-01 3329 2022 1 2.15574e+01 1.40806e+00 2295 2022 2 1.95236e+01 1.62459e+00 2247 2022 3 2.16356e+01 1.05904e+00 3595 2022 4 2.40398e+01 9.07710e-01 1931 2022 5 2.71624e+01 1.36447e+00 3409 2022 6 2.92085e+01 1.38630e+00 2866 2022 7 3.08325e+01 9.78165e-01 2648 2022 8 3.11739e+01 1.04887e+00 2124 2022 9 3.08396e+01 1.23281e+00 1478 2022 10 2.69783e+01 8.11800e-01 2875 2022 11 2.55715e+01 1.13728e+00 2093 2022 12 2.30328e+01 1.43208e+00 2602 2023 1 2.02532e+01 6.81757e-01 2999 2023 2 2.15538e+01 1.34202e+00 3216 2023 3 2.38345e+01 1.02073e+00 4225 2023 4 2.57165e+01 9.41502e-01 2881 2023 5 2.77214e+01 1.25388e+00 3666 2023 6 2.88201e+01 1.07758e+00 2561 2023 7 3.15975e+01 1.02394e+00 2336 2023 8 3.16155e+01 1.24650e+00 2151 2023 9 3.10660e+01 9.84185e-01 2852 2023 10 2.81512e+01 1.53425e+00 2729 2023 11 2.47918e+01 9.70279e-01 2256 2023 12 2.17352e+01 1.96136e+00 1056 2024 1 1.96839e+01 8.91248e-01 1089 2024 2 1.94035e+01 6.49259e-01 2117 2024 3 2.23128e+01 1.21957e+00 1926 2024 4 2.24777e+01 5.03621e-01 256