YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.86400e+01 1.29782e-01 84 2000 3 1.97118e+01 1.16063e+00 464 2000 4 2.18501e+01 9.53883e-01 429 2000 5 2.58653e+01 1.93249e+00 806 2000 6 2.73326e+01 1.35312e+00 367 2000 7 2.82715e+01 8.58494e-01 367 2000 8 2.96742e+01 8.25199e-01 254 2000 9 2.52688e+01 2.21289e+00 230 2000 10 2.27120e+01 9.49342e-01 487 2000 11 2.19248e+01 3.18383e+00 170 2000 12 nan nan 0 2001 1 1.14220e+01 6.19091e-02 28 2001 2 1.76126e+01 2.10616e+00 222 2001 3 1.59234e+01 1.93899e+00 260 2001 4 2.12988e+01 1.82032e+00 584 2001 5 2.55369e+01 9.31105e-01 672 2001 6 2.75588e+01 7.85150e-01 154 2001 7 2.95456e+01 1.31958e+00 126 2001 8 2.94303e+01 8.75194e-01 598 2001 9 2.61616e+01 2.38276e+00 416 2001 10 2.04889e+01 1.73476e+00 118 2001 11 1.94007e+01 1.09995e+00 632 2001 12 1.99251e+01 8.25341e-01 318 2002 1 1.73188e+01 6.00915e-02 16 2002 2 1.50149e+01 2.98558e+00 392 2002 3 1.99503e+01 2.58472e+00 183 2002 4 2.51107e+01 2.25458e+00 435 2002 5 2.64815e+01 2.30176e+00 346 2002 6 2.84114e+01 9.79363e-01 424 2002 7 2.92015e+01 1.76539e+00 1384 2002 8 2.91435e+01 1.59050e+00 1825 2002 9 2.84264e+01 1.16729e+00 1802 2002 10 2.64901e+01 2.43231e+00 2375 2002 11 2.02983e+01 2.02948e+00 866 2002 12 1.44833e+01 1.15337e+00 353 2003 1 1.14775e+01 1.36186e+00 717 2003 2 1.44418e+01 1.44848e+00 859 2003 3 2.05029e+01 1.73010e+00 1008 2003 4 2.14989e+01 2.63957e+00 2416 2003 5 2.69790e+01 1.53733e+00 2360 2003 6 2.83238e+01 1.76285e+00 1530 2003 7 2.94338e+01 1.81515e+00 1235 2003 8 2.86961e+01 1.30848e+00 1530 2003 9 2.75417e+01 1.05299e+00 1534 2003 10 2.36421e+01 1.26442e+00 1993 2003 11 2.12126e+01 2.20812e+00 2140 2003 12 1.36824e+01 1.04678e+00 243 2004 1 1.34909e+01 1.08292e+00 899 2004 2 1.26839e+01 1.46755e+00 287 2004 3 1.87803e+01 1.97858e+00 2237 2004 4 2.06878e+01 2.19198e+00 1927 2004 5 2.66981e+01 1.90833e+00 3141 2004 6 2.92583e+01 1.54607e+00 2180 2004 7 3.00819e+01 1.85525e+00 2084 2004 8 2.94690e+01 2.00105e+00 2105 2004 9 2.67892e+01 2.22424e+00 1603 2004 10 2.45571e+01 1.96605e+00 2026 2004 11 2.17168e+01 3.14578e+00 1287 2004 12 1.61696e+01 2.06514e+00 529 2005 1 1.50427e+01 2.65121e+00 704 2005 2 1.43947e+01 1.66408e+00 885 2005 3 1.65632e+01 1.82202e+00 1096 2005 4 2.02538e+01 1.53171e+00 2229 2005 5 2.48479e+01 2.66347e+00 2102 2005 6 2.86214e+01 1.67210e+00 1771 2005 7 3.03879e+01 1.58870e+00 2150 2005 8 2.96809e+01 2.26782e+00 1883 2005 9 2.80925e+01 1.28378e+00 2810 2005 10 2.54873e+01 1.81658e+00 1542 2005 11 1.99204e+01 1.79878e+00 1105 2005 12 1.35714e+01 1.56886e+00 549 2006 1 1.52690e+01 1.99062e+00 1005 2006 2 1.38555e+01 1.29300e+00 804 2006 3 1.85566e+01 1.97564e+00 2136 2006 4 2.31863e+01 2.17009e+00 2689 2006 5 2.52914e+01 2.24242e+00 2671 2006 6 2.85228e+01 1.46654e+00 2483 2006 7 2.99015e+01 1.65140e+00 2476 2006 8 3.02803e+01 1.38080e+00 2059 2006 9 2.79019e+01 1.67906e+00 2102 2006 10 2.37849e+01 2.11945e+00 2042 2006 11 1.84360e+01 2.08325e+00 982 2006 12 1.63313e+01 1.77237e+00 517 2007 1 1.39902e+01 2.17974e+00 447 2007 2 1.35732e+01 1.93441e+00 1128 2007 3 1.91240e+01 2.46583e+00 2351 2007 4 2.10423e+01 2.59475e+00 1739 2007 5 2.45850e+01 1.38104e+00 2370 2007 6 2.77568e+01 1.94035e+00 1922 2007 7 2.99159e+01 1.94771e+00 1778 2007 8 3.05945e+01 1.45495e+00 2502 2007 9 2.79195e+01 1.56613e+00 1798 2007 10 2.56121e+01 1.53900e+00 1550 2007 11 1.79119e+01 1.79325e+00 1719 2007 12 1.68502e+01 2.22609e+00 863 2008 1 1.34946e+01 1.84400e+00 339 2008 2 1.65016e+01 1.73637e+00 1020 2008 3 1.80099e+01 1.97648e+00 1564 2008 4 2.21212e+01 1.75929e+00 1866 2008 5 2.53698e+01 1.92470e+00 2180 2008 6 2.91948e+01 1.08660e+00 2153 2008 7 2.95651e+01 1.52742e+00 1813 2008 8 2.85047e+01 1.77312e+00 1444 2008 9 2.70814e+01 2.36881e+00 2113 2008 10 2.36521e+01 1.73409e+00 2210 2008 11 1.60145e+01 2.70362e+00 1290 2008 12 1.55778e+01 2.06317e+00 950 2009 1 1.45233e+01 2.29501e+00 937 2009 2 1.40040e+01 2.00825e+00 1331 2009 3 1.85180e+01 2.63218e+00 1754 2009 4 2.20285e+01 2.09832e+00 2028 2009 5 2.64983e+01 1.63278e+00 1812 2009 6 2.93012e+01 1.42179e+00 2398 2009 7 2.89260e+01 1.43736e+00 2005 2009 8 2.94601e+01 1.55145e+00 1852 2009 9 2.81178e+01 1.01588e+00 1811 2009 10 2.66634e+01 2.89578e+00 1970 2009 11 1.85890e+01 1.37907e+00 1126 2009 12 1.30336e+01 1.85453e+00 352 2010 1 1.28306e+01 1.82518e+00 449 2010 2 1.15351e+01 1.53875e+00 1020 2010 3 1.57949e+01 2.31963e+00 1633 2010 4 2.16467e+01 1.67115e+00 1972 2010 5 2.72363e+01 2.12008e+00 2918 2010 6 3.05883e+01 1.31896e+00 2811 2010 7 3.01122e+01 1.96027e+00 2661 2010 8 2.94289e+01 1.74035e+00 1136 2010 9 2.87433e+01 1.57135e+00 2299 2010 10 2.40955e+01 1.47031e+00 2972 2010 11 1.87540e+01 1.53248e+00 1657 2010 12 1.40969e+01 2.40002e+00 542 2011 1 1.13073e+01 1.38872e+00 804 2011 2 1.50150e+01 2.84158e+00 915 2011 3 1.96466e+01 2.14307e+00 1813 2011 4 2.36951e+01 2.07936e+00 2618 2011 5 2.59579e+01 2.56091e+00 2939 2011 6 2.94395e+01 1.66616e+00 2304 2011 7 2.94285e+01 1.27564e+00 1627 2011 8 3.08192e+01 1.39904e+00 2308 2011 9 2.79558e+01 1.28116e+00 2126 2011 10 2.20030e+01 2.21050e+00 1906 2011 11 1.76805e+01 1.45807e+00 1685 2011 12 1.54374e+01 1.49727e+00 986 2012 1 1.47969e+01 2.12651e+00 1308 2012 2 1.64067e+01 1.79723e+00 489 2012 3 2.19477e+01 2.58713e+00 2391 2012 4 2.32067e+01 1.75947e+00 2247 2012 5 2.72257e+01 1.20071e+00 2727 2012 6 2.74023e+01 1.52291e+00 1828 2012 7 2.92841e+01 1.58183e+00 1895 2012 8 2.86895e+01 1.57852e+00 1594 2012 9 2.78926e+01 1.77604e+00 2259 2012 10 2.42362e+01 2.07435e+00 1942 2012 11 1.72940e+01 1.30873e+00 1708 2012 12 1.65760e+01 2.52511e+00 1181 2013 1 1.61128e+01 1.80881e+00 865 2013 2 1.50601e+01 2.10489e+00 1047 2013 3 1.50839e+01 2.09374e+00 1605 2013 4 2.12796e+01 1.79506e+00 1915 2013 5 2.52783e+01 2.61946e+00 2167 2013 6 2.84562e+01 1.72293e+00 2044 2013 7 2.75125e+01 2.18789e+00 856 2013 8 3.00230e+01 1.88242e+00 1958 2013 9 2.90806e+01 1.91773e+00 2436 2013 10 2.43113e+01 2.57104e+00 1878 2013 11 1.94519e+01 2.11650e+00 747 2013 12 1.67972e+01 2.54334e+00 839 2014 1 1.22648e+01 1.02701e+00 733 2014 2 1.50158e+01 1.86734e+00 994 2014 3 1.73097e+01 1.79748e+00 1444 2014 4 2.15427e+01 2.15180e+00 1961 2014 5 2.54130e+01 1.85840e+00 2031 2014 6 2.88065e+01 2.07526e+00 1976 2014 7 2.98375e+01 1.47983e+00 1973 2014 8 2.99965e+01 1.52220e+00 2334 2014 9 2.83998e+01 1.93829e+00 871 2014 10 2.43702e+01 2.24532e+00 2459 2014 11 1.65412e+01 2.39466e+00 779 2014 12 1.53791e+01 1.65839e+00 1199 2015 1 1.37525e+01 1.22695e+00 1140 2015 2 1.30299e+01 1.29736e+00 1205 2015 3 1.95908e+01 2.77817e+00 1520 2015 4 2.38415e+01 1.55983e+00 923 2015 5 2.69621e+01 2.14817e+00 3018 2015 6 2.99906e+01 1.56524e+00 2241 2015 7 2.95111e+01 1.85166e+00 1143 2015 8 3.05234e+01 1.59388e+00 2052 2015 9 2.76902e+01 2.31587e+00 1157 2015 10 2.35763e+01 1.82011e+00 1876 2015 11 2.25485e+01 3.94009e+00 1491 2015 12 1.85124e+01 2.21543e+00 796 2016 1 1.25900e+01 1.03261e+00 575 2016 2 1.40231e+01 2.18688e+00 1286 2016 3 1.87646e+01 1.93003e+00 1268 2016 4 2.21234e+01 2.36670e+00 1705 2016 5 2.60075e+01 2.11660e+00 2491 2016 6 2.97353e+01 1.55845e+00 2352 2016 7 3.13541e+01 1.39733e+00 2482 2016 8 3.05641e+01 1.39286e+00 2286 2016 9 2.92514e+01 1.27573e+00 2269 2016 10 2.43484e+01 1.93112e+00 2237 2016 11 1.99447e+01 2.75675e+00 1712 2016 12 1.75542e+01 1.86022e+00 686 2017 1 1.64730e+01 2.35798e+00 869 2017 2 1.78621e+01 2.07210e+00 1642 2017 3 1.92598e+01 2.93095e+00 1980 2017 4 2.31003e+01 2.02186e+00 2164 2017 5 2.50844e+01 2.32748e+00 1579 2017 6 2.87325e+01 2.25511e+00 1409 2017 7 3.05753e+01 1.78599e+00 1157 2017 8 3.01765e+01 1.55949e+00 2014 2017 9 2.80857e+01 1.74652e+00 2052 2017 10 2.48342e+01 2.83900e+00 2412 2017 11 1.91690e+01 1.86826e+00 2116 2017 12 1.71991e+01 2.75409e+00 732 2018 1 1.19893e+01 1.85783e+00 628 2018 2 2.05850e+01 3.48435e+00 1202 2018 3 1.78449e+01 2.13667e+00 1840 2018 4 2.10924e+01 1.71074e+00 1715 2018 5 2.55795e+01 2.02287e+00 1548 2018 6 2.95569e+01 1.83042e+00 1776 2018 7 2.98074e+01 1.66050e+00 1676 2018 8 3.00773e+01 1.23608e+00 1543 2018 9 3.02717e+01 1.29702e+00 2906 2018 10 2.63450e+01 2.60047e+00 2092 2018 11 1.90499e+01 2.94213e+00 506 2018 12 1.55986e+01 2.29578e+00 917 2019 1 1.44418e+01 2.37299e+00 1065 2019 2 1.72661e+01 2.51774e+00 916 2019 3 1.74459e+01 1.89885e+00 1357 2019 4 2.20160e+01 2.18698e+00 1718 2019 5 2.78624e+01 2.04192e+00 3045 2019 6 2.92158e+01 1.41383e+00 1701 2019 7 2.98083e+01 1.35663e+00 2124 2019 8 3.05416e+01 1.29147e+00 2188 2019 9 2.92838e+01 1.49850e+00 3105 2019 10 2.56218e+01 2.24707e+00 2409 2019 11 1.81124e+01 2.12343e+00 1838 2019 12 1.58364e+01 1.80305e+00 1230 2020 1 1.50155e+01 2.19253e+00 1383 2020 2 1.45437e+01 1.27145e+00 1362 2020 3 2.23993e+01 3.93750e+00 2272 2020 4 2.32927e+01 1.61481e+00 1790 2020 5 2.50245e+01 1.91312e+00 2681 2020 6 2.97968e+01 1.57144e+00 2057 2020 7 3.01638e+01 1.39962e+00 1956 2020 8 3.09525e+01 1.63468e+00 1425 2020 9 2.86763e+01 2.00974e+00 1374 2020 10 2.55136e+01 1.66515e+00 2398 2020 11 2.09392e+01 2.07831e+00 2318 2020 12 1.39434e+01 1.66448e+00 1594 2021 1 1.39017e+01 2.11993e+00 1728 2021 2 1.63421e+01 2.41370e+00 1388 2021 3 1.89508e+01 2.29112e+00 2155 2021 4 2.14931e+01 2.32534e+00 2231 2021 5 2.54648e+01 1.77125e+00 2366 2021 6 2.81867e+01 1.57097e+00 1167 2021 7 2.94052e+01 1.45117e+00 1304 2021 8 3.01895e+01 1.51726e+00 1428 2021 9 2.81238e+01 1.19934e+00 2151 2021 10 2.56144e+01 2.06409e+00 2043 2021 11 1.76115e+01 1.90528e+00 2255 2021 12 1.77729e+01 2.01976e+00 1948 2022 1 1.45499e+01 2.83679e+00 2177 2022 2 1.63751e+01 3.32292e+00 2113 2022 3 1.96095e+01 1.46621e+00 2395 2022 4 2.35835e+01 1.80381e+00 1673 2022 5 2.68972e+01 1.80213e+00 2628 2022 6 2.97973e+01 1.30930e+00 2096 2022 7 3.03152e+01 1.44507e+00 1942 2022 8 3.06526e+01 1.50839e+00 2094 2022 9 2.82630e+01 1.96365e+00 1692 2022 10 2.30824e+01 2.17066e+00 2965 2022 11 2.15175e+01 2.46325e+00 1412 2022 12 1.77490e+01 3.21123e+00 2696 2023 1 1.48664e+01 1.72547e+00 2119 2023 2 1.73321e+01 2.35591e+00 1666 2023 3 2.01244e+01 2.72584e+00 2513 2023 4 2.32255e+01 1.63586e+00 1691 2023 5 2.55365e+01 2.27019e+00 2355 2023 6 2.80318e+01 1.97904e+00 1967 2023 7 3.06971e+01 1.49507e+00 2414 2023 8 3.11000e+01 1.21121e+00 2655 2023 9 2.88364e+01 1.69019e+00 2235 2023 10 2.30353e+01 1.66134e+00 2492 2023 11 2.00814e+01 2.23872e+00 1623 2023 12 1.40768e+01 1.57335e+00 1366 2024 1 1.36652e+01 1.60872e+00 922 2024 2 1.55376e+01 1.35090e+00 1771 2024 3 2.02068e+01 1.14572e+00 1394 2024 4 2.12248e+01 1.06650e+00 193