YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.92559e+01 7.58768e-01 192 2000 3 2.06754e+01 1.34791e+00 557 2000 4 2.26750e+01 7.72086e-01 839 2000 5 2.45765e+01 1.58624e+00 847 2000 6 2.74103e+01 1.25401e+00 512 2000 7 2.92906e+01 7.76105e-01 503 2000 8 2.94604e+01 1.19242e+00 489 2000 9 2.90082e+01 1.61960e+00 570 2000 10 2.65336e+01 1.08838e+00 1024 2000 11 2.41667e+01 1.27236e+00 743 2000 12 2.12055e+01 1.63811e+00 698 2001 1 1.71647e+01 1.00049e+00 538 2001 2 1.85948e+01 2.13230e+00 441 2001 3 2.01758e+01 5.21118e-01 640 2001 4 2.15881e+01 1.84809e+00 703 2001 5 2.37476e+01 2.26842e+00 816 2001 6 2.72985e+01 1.69420e+00 375 2001 7 2.84238e+01 8.84622e-01 498 2001 8 2.93943e+01 7.87126e-01 561 2001 9 2.87768e+01 8.85353e-01 494 2001 10 2.64985e+01 9.85962e-01 391 2001 11 2.30903e+01 6.01338e-01 832 2001 12 2.32098e+01 6.42430e-01 774 2002 1 1.97953e+01 1.05702e+00 530 2002 2 1.87135e+01 7.60278e-01 579 2002 3 1.90668e+01 9.94418e-01 279 2002 4 2.34667e+01 1.72684e+00 603 2002 5 2.60162e+01 4.73923e-01 866 2002 6 2.65297e+01 1.57603e+00 486 2002 7 2.85252e+01 1.32989e+00 1563 2002 8 2.95041e+01 7.69141e-01 1948 2002 9 2.92332e+01 1.26446e+00 2028 2002 10 2.86446e+01 9.45825e-01 3460 2002 11 2.54148e+01 1.73009e+00 2192 2002 12 2.08038e+01 1.30435e+00 1780 2003 1 1.65465e+01 1.52808e+00 2431 2003 2 1.63215e+01 8.46714e-01 1286 2003 3 2.13393e+01 1.59679e+00 1432 2003 4 2.18010e+01 1.46791e+00 2635 2003 5 2.67719e+01 1.69890e+00 3769 2003 6 2.82346e+01 1.18116e+00 1308 2003 7 2.93909e+01 1.28677e+00 1795 2003 8 2.93400e+01 1.04188e+00 1636 2003 9 2.90112e+01 8.29394e-01 2017 2003 10 2.66159e+01 1.30030e+00 2829 2003 11 2.38039e+01 1.00874e+00 3289 2003 12 1.98316e+01 1.76331e+00 2158 2004 1 1.75952e+01 9.18655e-01 2192 2004 2 1.74663e+01 1.11297e+00 1087 2004 3 1.96586e+01 1.19546e+00 2646 2004 4 2.10036e+01 1.10244e+00 2934 2004 5 2.51626e+01 1.56891e+00 3687 2004 6 2.90391e+01 1.24238e+00 3000 2004 7 2.96001e+01 9.15516e-01 1986 2004 8 2.96487e+01 1.27428e+00 2109 2004 9 2.83806e+01 1.54427e+00 2133 2004 10 2.68999e+01 1.23860e+00 3166 2004 11 2.46469e+01 1.17112e+00 2698 2004 12 2.11255e+01 1.84941e+00 1623 2005 1 1.77929e+01 7.82301e-01 2068 2005 2 1.72175e+01 9.58995e-01 2179 2005 3 1.85315e+01 1.42512e+00 1499 2005 4 2.12233e+01 7.89205e-01 3124 2005 5 2.43208e+01 1.51574e+00 2947 2005 6 2.73754e+01 1.30633e+00 2043 2005 7 2.92629e+01 1.35589e+00 2681 2005 8 3.10402e+01 1.51104e+00 2328 2005 9 2.82789e+01 1.14632e+00 2976 2005 10 2.69059e+01 1.28178e+00 2736 2005 11 2.35834e+01 1.05408e+00 2195 2005 12 2.06175e+01 1.82280e+00 1873 2006 1 1.84854e+01 9.12658e-01 2033 2006 2 1.79660e+01 9.86463e-01 1773 2006 3 1.94382e+01 1.11554e+00 2612 2006 4 2.30963e+01 1.78150e+00 3324 2006 5 2.53956e+01 1.02900e+00 3114 2006 6 2.75909e+01 1.58466e+00 2482 2006 7 2.90376e+01 1.50817e+00 2380 2006 8 3.02005e+01 9.62857e-01 2721 2006 9 2.98090e+01 1.07017e+00 2552 2006 10 2.77126e+01 1.49993e+00 3458 2006 11 2.33555e+01 1.64945e+00 1973 2006 12 2.04245e+01 1.30907e+00 1290 2007 1 2.04906e+01 9.29117e-01 1790 2007 2 1.81171e+01 8.79111e-01 1589 2007 3 1.97365e+01 1.20858e+00 2441 2007 4 2.14643e+01 1.39206e+00 3032 2007 5 2.37381e+01 1.14637e+00 3406 2007 6 2.70143e+01 1.34344e+00 2859 2007 7 2.99027e+01 1.31854e+00 2297 2007 8 3.00394e+01 1.30624e+00 3137 2007 9 2.98835e+01 1.17508e+00 2434 2007 10 2.81949e+01 7.15609e-01 2348 2007 11 2.43790e+01 1.26742e+00 3394 2007 12 2.28621e+01 8.20999e-01 3043 2008 1 1.99061e+01 1.22346e+00 1955 2008 2 2.01511e+01 7.79868e-01 1992 2008 3 2.01650e+01 1.46042e+00 2122 2008 4 2.27288e+01 9.32397e-01 3531 2008 5 2.52451e+01 1.46342e+00 3607 2008 6 2.83995e+01 1.31936e+00 2810 2008 7 2.90909e+01 1.32923e+00 1615 2008 8 2.94163e+01 9.78655e-01 1674 2008 9 2.87923e+01 1.04561e+00 2226 2008 10 2.69589e+01 1.04512e+00 2757 2008 11 2.23801e+01 1.38555e+00 2754 2008 12 2.07716e+01 8.45196e-01 2821 2009 1 1.89334e+01 1.68443e+00 2519 2009 2 1.67344e+01 7.67663e-01 2289 2009 3 1.88623e+01 1.92672e+00 2538 2009 4 2.22693e+01 1.19770e+00 3001 2009 5 2.55560e+01 1.48086e+00 2883 2009 6 2.79943e+01 1.22154e+00 2729 2009 7 2.94053e+01 1.39517e+00 2480 2009 8 2.95866e+01 1.14495e+00 2299 2009 9 2.98497e+01 9.87139e-01 2085 2009 10 2.83855e+01 1.97113e+00 3310 2009 11 2.41887e+01 1.59142e+00 1868 2009 12 2.05368e+01 1.11117e+00 1355 2010 1 1.64462e+01 1.59646e+00 1332 2010 2 1.52125e+01 8.75050e-01 1090 2010 3 1.54390e+01 1.12484e+00 2156 2010 4 2.01627e+01 1.86491e+00 2130 2010 5 2.60339e+01 1.97356e+00 3460 2010 6 2.94242e+01 1.06595e+00 3154 2010 7 2.92183e+01 9.59873e-01 2482 2010 8 3.01997e+01 1.19832e+00 1980 2010 9 2.93659e+01 7.89254e-01 2964 2010 10 2.66466e+01 1.20001e+00 4288 2010 11 2.36984e+01 1.11859e+00 3456 2010 12 1.87882e+01 2.26201e+00 2139 2011 1 1.55348e+01 1.02022e+00 1837 2011 2 1.70028e+01 1.01267e+00 1563 2011 3 1.97250e+01 1.58088e+00 2668 2011 4 2.41116e+01 1.33954e+00 3521 2011 5 2.67136e+01 1.26991e+00 4066 2011 6 2.86457e+01 1.38365e+00 3024 2011 7 2.94036e+01 1.57302e+00 2373 2011 8 2.99938e+01 1.31150e+00 2711 2011 9 2.91837e+01 1.29066e+00 2020 2011 10 2.72860e+01 1.69184e+00 2147 2011 11 2.27265e+01 5.64945e-01 3161 2011 12 2.02665e+01 8.16021e-01 2679 2012 1 1.88153e+01 9.68800e-01 2481 2012 2 1.95452e+01 1.15376e+00 1345 2012 3 2.19553e+01 1.08571e+00 3479 2012 4 2.38610e+01 9.73471e-01 3307 2012 5 2.62826e+01 8.90492e-01 2879 2012 6 2.77396e+01 1.14101e+00 1876 2012 7 2.88465e+01 1.45282e+00 2405 2012 8 2.95548e+01 1.34128e+00 2068 2012 9 2.82787e+01 8.72894e-01 2195 2012 10 2.70982e+01 1.19087e+00 2629 2012 11 2.22461e+01 1.73534e+00 2868 2012 12 2.06030e+01 1.23595e+00 2339 2013 1 1.98715e+01 7.00994e-01 1920 2013 2 1.95141e+01 6.80625e-01 2524 2013 3 1.88196e+01 1.05490e+00 2653 2013 4 2.16536e+01 1.94930e+00 2141 2013 5 2.48711e+01 1.28147e+00 3111 2013 6 2.82534e+01 1.45720e+00 2662 2013 7 2.89760e+01 1.40696e+00 1751 2013 8 3.01164e+01 8.32619e-01 2480 2013 9 2.97408e+01 1.05462e+00 2940 2013 10 2.78016e+01 1.12154e+00 2534 2013 11 2.39298e+01 1.42115e+00 1824 2013 12 2.17180e+01 8.28794e-01 2230 2014 1 1.85370e+01 1.16078e+00 1470 2014 2 1.89566e+01 1.07781e+00 1551 2014 3 2.01801e+01 7.15803e-01 2018 2014 4 2.20499e+01 2.12340e+00 2307 2014 5 2.49269e+01 9.99841e-01 2358 2014 6 2.82815e+01 1.44892e+00 2495 2014 7 2.99053e+01 1.17775e+00 2398 2014 8 3.07492e+01 1.06994e+00 2846 2014 9 2.99976e+01 1.24848e+00 1493 2014 10 2.82216e+01 1.24614e+00 3074 2014 11 2.33196e+01 1.75332e+00 2456 2014 12 1.99740e+01 1.07949e+00 2111 2015 1 1.91301e+01 1.16633e+00 1728 2015 2 1.76528e+01 6.57439e-01 2086 2015 3 2.14724e+01 1.48424e+00 2881 2015 4 2.43668e+01 1.95050e+00 2530 2015 5 2.70214e+01 1.40658e+00 3980 2015 6 2.91343e+01 1.36516e+00 2284 2015 7 3.00568e+01 1.21105e+00 1968 2015 8 3.01763e+01 1.04069e+00 1681 2015 9 2.95979e+01 1.71987e+00 1186 2015 10 2.75729e+01 1.13742e+00 2411 2015 11 2.57895e+01 1.20409e+00 3124 2015 12 2.28498e+01 1.05701e+00 2006 2016 1 2.11978e+01 2.22236e+00 929 2016 2 1.78429e+01 1.09103e+00 1853 2016 3 1.95601e+01 1.55621e+00 1381 2016 4 2.27084e+01 1.64351e+00 2491 2016 5 2.56910e+01 1.49348e+00 3268 2016 6 2.87753e+01 1.15633e+00 2764 2016 7 3.05385e+01 1.04251e+00 2495 2016 8 3.01426e+01 9.99507e-01 2588 2016 9 2.94510e+01 1.40262e+00 2611 2016 10 2.67928e+01 1.58201e+00 2886 2016 11 2.39281e+01 1.31182e+00 2961 2016 12 2.17462e+01 6.86697e-01 2762 2017 1 1.97901e+01 7.22058e-01 2284 2017 2 1.97015e+01 7.12964e-01 2341 2017 3 2.06561e+01 8.93703e-01 3307 2017 4 2.27978e+01 1.03294e+00 2858 2017 5 2.58400e+01 1.59531e+00 2858 2017 6 2.87716e+01 1.59381e+00 1447 2017 7 3.03559e+01 9.50652e-01 2504 2017 8 3.07867e+01 1.22852e+00 2627 2017 9 2.96673e+01 1.02021e+00 2889 2017 10 2.77164e+01 1.05412e+00 2771 2017 11 2.40541e+01 1.04135e+00 3214 2017 12 2.23494e+01 1.18319e+00 2690 2018 1 1.75529e+01 1.59987e+00 1608 2018 2 2.00704e+01 2.23804e+00 2409 2018 3 2.07170e+01 1.19222e+00 3109 2018 4 2.27767e+01 1.22037e+00 2675 2018 5 2.41117e+01 1.45316e+00 1939 2018 6 2.85624e+01 1.60623e+00 2823 2018 7 2.97391e+01 1.07821e+00 2190 2018 8 3.02951e+01 1.08094e+00 2466 2018 9 2.98785e+01 1.15242e+00 2714 2018 10 2.79198e+01 1.12537e+00 3314 2018 11 2.52982e+01 1.20113e+00 1947 2018 12 2.08788e+01 1.62307e+00 2238 2019 1 1.96302e+01 1.01918e+00 1806 2019 2 1.95881e+01 1.47912e+00 1793 2019 3 2.13144e+01 7.81169e-01 2565 2019 4 2.32871e+01 1.19788e+00 2844 2019 5 2.65671e+01 1.42137e+00 3416 2019 6 2.95237e+01 1.26485e+00 2181 2019 7 3.02679e+01 1.19089e+00 2269 2019 8 3.00944e+01 9.68213e-01 1645 2019 9 2.93581e+01 9.13433e-01 3048 2019 10 2.80124e+01 8.88576e-01 2850 2019 11 2.56893e+01 1.74058e+00 1993 2019 12 2.24035e+01 1.08245e+00 1659 2020 1 2.01777e+01 1.01697e+00 2937 2020 2 1.92186e+01 9.47410e-01 2223 2020 3 2.18534e+01 2.13182e+00 2992 2020 4 2.45430e+01 6.88284e-01 1781 2020 5 2.53503e+01 1.08530e+00 2998 2020 6 2.94615e+01 1.35874e+00 2007 2020 7 3.03581e+01 1.05949e+00 2211 2020 8 3.08861e+01 1.11080e+00 1248 2020 9 2.98588e+01 1.68576e+00 1707 2020 10 2.79545e+01 8.23846e-01 1950 2020 11 2.46922e+01 1.44967e+00 2720 2020 12 2.07967e+01 1.39643e+00 2362 2021 1 1.84191e+01 9.27412e-01 1966 2021 2 1.95529e+01 1.02749e+00 2807 2021 3 2.03752e+01 1.08176e+00 2719 2021 4 2.23362e+01 1.52647e+00 3161 2021 5 2.59436e+01 9.54215e-01 3415 2021 6 2.74091e+01 1.47865e+00 1420 2021 7 2.95333e+01 9.73887e-01 2318 2021 8 3.01051e+01 1.14413e+00 1772 2021 9 2.98822e+01 6.30380e-01 2248 2021 10 2.89527e+01 9.20034e-01 2593 2021 11 2.37755e+01 1.40131e+00 2549 2021 12 2.17073e+01 9.83174e-01 3267 2022 1 2.08053e+01 1.31739e+00 2586 2022 2 1.86737e+01 1.40727e+00 2511 2022 3 2.08523e+01 1.14825e+00 3371 2022 4 2.33840e+01 9.76425e-01 2034 2022 5 2.64234e+01 1.22897e+00 2937 2022 6 2.87675e+01 1.38205e+00 2554 2022 7 3.07975e+01 9.93520e-01 2442 2022 8 3.07691e+01 8.83673e-01 1668 2022 9 3.05191e+01 1.30428e+00 2023 2022 10 2.71806e+01 1.14126e+00 2749 2022 11 2.52964e+01 1.09552e+00 2368 2022 12 2.31248e+01 1.29500e+00 2591 2023 1 2.04514e+01 7.50451e-01 2968 2023 2 2.06352e+01 1.10557e+00 3107 2023 3 2.30315e+01 7.57398e-01 3756 2023 4 2.47824e+01 8.76147e-01 2417 2023 5 2.65432e+01 1.27887e+00 3977 2023 6 2.80956e+01 1.28268e+00 2734 2023 7 3.07410e+01 1.13213e+00 2361 2023 8 3.17639e+01 1.19154e+00 2711 2023 9 3.08226e+01 1.13358e+00 2413 2023 10 2.77464e+01 1.45223e+00 2553 2023 11 2.47943e+01 1.16845e+00 2177 2023 12 2.14877e+01 1.87693e+00 908 2024 1 1.92591e+01 7.11166e-01 1109 2024 2 1.87450e+01 6.30795e-01 2659 2024 3 2.15924e+01 9.54564e-01 1748 2024 4 2.14839e+01 7.83974e-01 128