YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 nan nan 0 2000 3 3.81074e+00 9.35652e-01 121 2000 4 6.03844e+00 2.74418e-01 125 2000 5 7.99917e+00 5.72131e-01 133 2000 6 1.60821e+01 2.87612e+00 170 2000 7 1.94526e+01 1.68360e+00 504 2000 8 1.95131e+01 1.53337e+00 311 2000 9 1.92428e+01 1.22165e+00 492 2000 10 1.43751e+01 5.74604e-01 413 2000 11 1.04495e+01 6.95458e-01 399 2000 12 6.40697e+00 1.60036e+00 502 2001 1 3.47160e+00 4.61967e-01 256 2001 2 3.08380e+00 5.28483e-01 320 2001 3 3.29611e+00 5.93675e-01 374 2001 4 5.38603e+00 1.46084e+00 385 2001 5 1.18312e+01 9.91397e-01 438 2001 6 1.43452e+01 1.77317e+00 152 2001 7 1.94669e+01 9.14381e-01 793 2001 8 1.78757e+01 1.70335e+00 333 2001 9 1.79729e+01 5.66879e-01 758 2001 10 1.24538e+01 1.06198e+00 336 2001 11 1.04180e+01 1.20686e+00 385 2001 12 8.20396e+00 1.25086e+00 501 2002 1 5.16187e+00 8.92540e-01 433 2002 2 4.00539e+00 5.76772e-01 207 2002 3 4.41520e+00 6.69299e-01 203 2002 4 7.18990e+00 1.55435e+00 362 2002 5 9.55317e+00 5.73848e-01 311 2002 6 1.41021e+01 1.17790e+00 235 2002 7 2.05063e+01 1.34948e+00 2331 2002 8 2.10444e+01 1.75223e+00 2407 2002 9 1.79500e+01 1.38178e+00 1468 2002 10 1.47899e+01 1.79814e+00 1575 2002 11 1.04477e+01 1.07744e+00 1667 2002 12 6.35294e+00 1.17334e+00 1843 2003 1 2.90530e+00 1.22190e+00 525 2003 2 9.05893e-01 2.59569e-01 140 2003 3 1.18952e+00 1.10293e+00 198 2003 4 4.61818e+00 1.70574e+00 699 2003 5 8.87870e+00 2.38761e+00 539 2003 6 1.53398e+01 2.69890e+00 905 2003 7 1.90514e+01 1.16689e+00 1697 2003 8 1.97711e+01 1.28203e+00 1596 2003 9 1.84949e+01 1.46373e+00 2261 2003 10 1.48442e+01 2.05790e+00 1902 2003 11 9.84452e+00 1.41253e+00 1232 2003 12 6.28768e+00 1.29537e+00 1323 2004 1 3.62354e+00 1.68337e+00 505 2004 2 1.13826e+00 4.57022e-01 402 2004 3 2.06210e+00 5.21393e-01 606 2004 4 4.70920e+00 1.83787e+00 1115 2004 5 1.04539e+01 1.79583e+00 795 2004 6 1.46354e+01 2.16996e+00 1665 2004 7 1.83140e+01 1.63327e+00 1428 2004 8 1.93840e+01 1.19056e+00 2450 2004 9 1.76362e+01 1.98728e+00 2066 2004 10 1.42985e+01 1.38907e+00 1604 2004 11 1.03301e+01 1.33731e+00 2063 2004 12 7.07241e+00 1.55480e+00 1443 2005 1 3.65320e+00 1.98998e+00 203 2005 2 1.58925e+00 5.91257e-01 421 2005 3 2.05843e+00 4.99034e-01 1132 2005 4 6.59956e+00 1.54698e+00 1565 2005 5 8.31798e+00 1.89211e+00 643 2005 6 1.45445e+01 1.80677e+00 534 2005 7 2.03342e+01 2.07461e+00 2256 2005 8 2.05764e+01 1.49929e+00 2403 2005 9 1.86247e+01 1.22460e+00 2653 2005 10 1.25764e+01 1.73471e+00 1133 2005 11 1.02307e+01 9.56643e-01 1598 2005 12 6.35324e+00 1.15789e+00 1355 2006 1 4.41570e+00 4.63435e-01 1110 2006 2 3.19229e+00 8.19438e-01 547 2006 3 2.14829e+00 6.42387e-01 557 2006 4 6.28206e+00 1.59797e+00 1496 2006 5 1.06867e+01 2.28048e+00 1067 2006 6 1.71133e+01 1.78802e+00 771 2006 7 1.97621e+01 1.31263e+00 1994 2006 8 2.02967e+01 1.60881e+00 2942 2006 9 1.73132e+01 8.09988e-01 2288 2006 10 1.35794e+01 1.61078e+00 1837 2006 11 1.08095e+01 1.46543e+00 1156 2006 12 8.35702e+00 1.39420e+00 1850 2007 1 5.77001e+00 1.25550e+00 989 2007 2 1.66737e+00 6.89466e-01 619 2007 3 2.81359e+00 9.69405e-01 861 2007 4 4.55545e+00 1.06113e+00 893 2007 5 1.05359e+01 2.55184e+00 1534 2007 6 1.63743e+01 2.07419e+00 1808 2007 7 1.97493e+01 1.37104e+00 2144 2007 8 1.95011e+01 1.18049e+00 2242 2007 9 1.87661e+01 1.02035e+00 1951 2007 10 1.46724e+01 1.74899e+00 2000 2007 11 1.06067e+01 1.74132e+00 1245 2007 12 5.98487e+00 1.76602e+00 1194 2008 1 3.69462e+00 1.00848e+00 945 2008 2 2.85004e+00 7.44562e-01 855 2008 3 3.45335e+00 3.39170e-01 1147 2008 4 7.52134e+00 1.83387e+00 1290 2008 5 9.99778e+00 1.98535e+00 1304 2008 6 1.72849e+01 1.35203e+00 1673 2008 7 1.96612e+01 1.41952e+00 1746 2008 8 2.00032e+01 1.23802e+00 3527 2008 9 1.88405e+01 1.48772e+00 1787 2008 10 1.44049e+01 1.64226e+00 1943 2008 11 1.00058e+01 1.67878e+00 1500 2008 12 6.92999e+00 1.26718e+00 1129 2009 1 3.23873e+00 1.08299e+00 1235 2009 2 1.69815e+00 2.41208e-01 602 2009 3 2.57025e+00 8.29670e-01 767 2009 4 5.82453e+00 1.15708e+00 1245 2009 5 1.06719e+01 1.92707e+00 855 2009 6 1.48519e+01 1.86362e+00 540 2009 7 1.81214e+01 1.40155e+00 2149 2009 8 2.21174e+01 1.64292e+00 2190 2009 9 1.75980e+01 8.31487e-01 2034 2009 10 1.35705e+01 1.31994e+00 1589 2009 11 1.11582e+01 7.49065e-01 1217 2009 12 7.61404e+00 2.02879e+00 1680 2010 1 3.16700e+00 5.87452e-01 658 2010 2 2.67282e+00 5.34187e-01 597 2010 3 3.47858e+00 1.18671e+00 906 2010 4 8.37470e+00 1.30053e+00 1372 2010 5 1.29510e+01 2.48111e+00 1540 2010 6 1.80697e+01 1.94418e+00 1497 2010 7 2.14496e+01 1.89836e+00 3387 2010 8 2.01700e+01 2.03466e+00 2210 2010 9 1.81037e+01 1.24281e+00 2124 2010 10 1.45219e+01 1.49164e+00 2222 2010 11 1.06148e+01 8.26877e-01 1146 2010 12 6.62132e+00 1.76109e+00 1635 2011 1 3.86741e+00 1.03342e+00 1097 2011 2 2.75650e+00 4.96322e-01 993 2011 3 3.46014e+00 1.00294e+00 1281 2011 4 5.18097e+00 1.75715e+00 843 2011 5 1.08118e+01 2.50045e+00 921 2011 6 1.63630e+01 1.81050e+00 1580 2011 7 2.07480e+01 1.80085e+00 2675 2011 8 2.00709e+01 1.50631e+00 1948 2011 9 1.69838e+01 1.10402e+00 1815 2011 10 1.53477e+01 1.50701e+00 2024 2011 11 1.13050e+01 1.07592e+00 1223 2011 12 8.19164e+00 1.91767e+00 1477 2012 1 6.06359e+00 1.12551e+00 1423 2012 2 4.00207e+00 7.14783e-01 1439 2012 3 4.94410e+00 1.17594e+00 378 2012 4 8.03006e+00 1.54831e+00 2161 2012 5 1.31852e+01 2.58015e+00 1003 2012 6 1.67224e+01 2.54351e+00 1204 2012 7 2.20343e+01 1.35252e+00 2489 2012 8 2.15917e+01 1.56180e+00 2084 2012 9 1.82037e+01 1.16673e+00 2413 2012 10 1.43987e+01 1.02767e+00 2023 2012 11 1.01557e+01 1.47059e+00 1604 2012 12 8.05072e+00 9.06043e-01 781 2013 1 5.15742e+00 6.44128e-01 1165 2013 2 2.90676e+00 7.22950e-01 720 2013 3 3.68849e+00 7.00408e-01 1027 2013 4 6.82964e+00 2.14268e+00 1509 2013 5 1.18888e+01 2.17601e+00 1467 2013 6 1.54882e+01 2.07012e+00 1498 2013 7 2.18772e+01 1.93927e+00 1715 2013 8 2.13271e+01 1.20962e+00 2418 2013 9 1.79448e+01 1.65937e+00 1972 2013 10 1.52480e+01 1.15779e+00 2280 2013 11 1.02422e+01 1.65487e+00 1335 2013 12 6.41377e+00 1.18153e+00 1034 2014 1 3.55469e+00 1.01097e+00 795 2014 2 1.42021e+00 9.24416e-01 608 2014 3 2.25190e+00 8.76648e-01 688 2014 4 5.16741e+00 8.77469e-01 1437 2014 5 1.15671e+01 2.13797e+00 1125 2014 6 1.66704e+01 2.26481e+00 2296 2014 7 1.92377e+01 1.67261e+00 2146 2014 8 1.89743e+01 1.34035e+00 2715 2014 9 1.91242e+01 1.90619e+00 2587 2014 10 1.51278e+01 1.36871e+00 1594 2014 11 1.12327e+01 1.21653e+00 1264 2014 12 7.25586e+00 1.42647e+00 1050 2015 1 4.13272e+00 1.40509e+00 1028 2015 2 2.05585e+00 6.01005e-01 153 2015 3 1.44367e+00 7.78082e-01 490 2015 4 4.92518e+00 1.43242e+00 950 2015 5 1.14907e+01 2.40541e+00 678 2015 6 1.53429e+01 2.15158e+00 847 2015 7 2.03062e+01 2.09753e+00 2133 2015 8 2.19005e+01 1.43774e+00 3331 2015 9 1.94140e+01 1.55407e+00 2714 2015 10 1.45121e+01 1.52560e+00 1991 2015 11 1.18879e+01 1.29616e+00 1577 2015 12 9.24239e+00 1.39099e+00 804 2016 1 6.60231e+00 1.70800e+00 1597 2016 2 3.85785e+00 6.38856e-01 775 2016 3 5.01455e+00 8.73481e-01 764 2016 4 6.53590e+00 1.45262e+00 2006 2016 5 1.06806e+01 1.87051e+00 992 2016 6 1.64534e+01 2.07197e+00 2116 2016 7 2.02484e+01 2.04629e+00 2517 2016 8 2.17357e+01 1.00534e+00 3661 2016 9 1.91955e+01 1.44178e+00 1750 2016 10 1.59608e+01 1.16100e+00 2005 2016 11 1.19650e+01 1.42099e+00 1421 2016 12 7.69323e+00 1.40972e+00 1931 2017 1 4.75681e+00 1.10254e+00 1068 2017 2 3.97780e+00 5.08987e-01 836 2017 3 3.85802e+00 5.07678e-01 1167 2017 4 5.86615e+00 1.60999e+00 828 2017 5 1.04169e+01 2.48275e+00 914 2017 6 1.56771e+01 2.31323e+00 980 2017 7 2.00923e+01 2.00501e+00 1889 2017 8 2.05482e+01 1.27623e+00 2985 2017 9 1.80636e+01 1.05571e+00 1484 2017 10 1.58203e+01 1.18537e+00 2013 2017 11 1.07648e+01 1.57391e+00 2089 2017 12 6.64806e+00 1.27347e+00 1078 2018 1 2.22702e+00 1.05678e+00 504 2018 2 2.21288e+00 1.01594e+00 487 2018 3 3.75724e+00 4.56734e-01 965 2018 4 4.78867e+00 1.50060e+00 1122 2018 5 1.10521e+01 2.65214e+00 527 2018 6 1.68357e+01 2.89012e+00 1240 2018 7 2.03580e+01 1.64217e+00 2004 2018 8 2.09443e+01 1.57895e+00 2189 2018 9 2.01599e+01 1.86044e+00 2245 2018 10 1.55661e+01 1.65381e+00 1276 2018 11 1.18195e+01 1.51593e+00 1290 2018 12 5.94602e+00 1.35138e+00 1491 2019 1 3.95322e+00 1.03374e+00 1109 2019 2 2.21621e+00 5.68573e-01 755 2019 3 2.80565e+00 7.48195e-01 1189 2019 4 5.54473e+00 1.88724e+00 1103 2019 5 1.07027e+01 1.58789e+00 844 2019 6 1.59115e+01 1.52843e+00 1063 2019 7 2.13270e+01 1.82630e+00 2911 2019 8 2.10826e+01 1.66200e+00 2307 2019 9 1.81941e+01 1.06104e+00 3460 2019 10 1.40754e+01 1.33252e+00 1800 2019 11 1.14327e+01 1.74605e+00 1863 2019 12 6.18593e+00 9.08543e-01 1481 2020 1 4.63741e+00 7.34002e-01 1907 2020 2 4.49128e+00 4.67844e-01 1766 2020 3 4.80321e+00 7.43236e-01 1782 2020 4 6.51401e+00 5.06951e-01 1695 2020 5 1.00816e+01 2.27810e+00 2427 2020 6 1.73435e+01 2.27778e+00 1925 2020 7 2.11402e+01 2.04084e+00 1910 2020 8 2.04814e+01 2.01984e+00 1277 2020 9 1.83026e+01 1.73689e+00 2874 2020 10 1.57328e+01 1.27594e+00 2353 2020 11 1.17653e+01 1.24399e+00 2366 2020 12 8.13906e+00 1.38794e+00 1972 2021 1 4.92439e+00 7.19620e-01 1631 2021 2 3.25538e+00 6.52737e-01 1501 2021 3 3.78824e+00 1.23544e+00 2481 2021 4 7.20622e+00 1.44783e+00 1861 2021 5 1.23184e+01 2.21812e+00 2484 2021 6 1.80135e+01 2.56252e+00 1876 2021 7 2.07086e+01 1.57769e+00 1993 2021 8 2.16764e+01 1.51639e+00 1757 2021 9 1.95754e+01 5.91554e-01 2374 2021 10 1.69622e+01 8.37937e-01 1757 2021 11 1.22243e+01 1.76558e+00 2397 2021 12 8.69767e+00 6.47990e-01 1383 2022 1 4.68419e+00 1.59935e+00 1001 2022 2 3.46322e+00 3.87988e-01 1601 2022 3 4.28425e+00 1.13374e+00 1587 2022 4 7.26413e+00 7.10566e-01 1140 2022 5 1.19080e+01 2.80054e+00 1280 2022 6 1.77079e+01 1.49294e+00 3055 2022 7 2.08572e+01 1.83833e+00 2568 2022 8 2.06489e+01 1.37917e+00 2303 2022 9 1.96934e+01 1.79059e+00 2586 2022 10 1.53922e+01 6.53687e-01 2339 2022 11 1.28108e+01 1.58317e+00 2876 2022 12 8.09322e+00 1.59821e+00 2153 2023 1 5.62208e+00 7.57838e-01 1061 2023 2 4.57305e+00 7.59476e-01 1195 2023 3 4.71738e+00 9.47684e-01 2189 2023 4 7.43720e+00 1.69519e+00 1705 2023 5 1.22144e+01 1.76538e+00 3490 2023 6 1.70244e+01 2.56312e+00 2048 2023 7 2.16851e+01 1.61515e+00 2237 2023 8 1.93154e+01 1.10325e+00 2362 2023 9 1.90748e+01 1.57501e+00 2536 2023 10 1.64256e+01 1.12901e+00 2244 2023 11 1.19941e+01 1.44248e+00 2325 2023 12 8.27338e+00 9.97145e-01 1890 2024 1 6.24129e+00 8.76936e-01 2120 2024 2 3.60044e+00 4.40982e-01 2126 2024 3 4.75067e+00 7.65099e-01 1266 2024 4 5.09375e+00 6.47821e-01 128