YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.83519e+01 7.39882e-02 60 2000 3 2.02913e+01 1.24750e+00 625 2000 4 2.15111e+01 1.06113e+00 496 2000 5 2.56595e+01 2.15606e+00 529 2000 6 2.75397e+01 1.10327e+00 372 2000 7 2.91280e+01 1.33096e+00 447 2000 8 2.91282e+01 8.07022e-01 221 2000 9 2.82340e+01 7.12467e-01 172 2000 10 2.32567e+01 2.08008e+00 542 2000 11 2.26905e+01 1.35720e+00 247 2000 12 nan nan 0 2001 1 1.18992e+01 1.37120e-01 62 2001 2 1.69539e+01 2.38686e+00 311 2001 3 1.55354e+01 6.77991e-01 246 2001 4 2.17142e+01 1.92063e+00 612 2001 5 2.54702e+01 1.24629e+00 604 2001 6 2.76799e+01 7.88640e-01 236 2001 7 2.88737e+01 5.37158e-01 141 2001 8 2.94373e+01 1.13930e+00 423 2001 9 2.63350e+01 1.40111e+00 385 2001 10 2.18372e+01 1.59007e+00 220 2001 11 1.94481e+01 1.16772e+00 535 2001 12 1.84415e+01 3.32475e+00 243 2002 1 1.75099e+01 4.64749e-01 89 2002 2 1.61586e+01 1.96812e+00 240 2002 3 2.04059e+01 1.44193e+00 128 2002 4 2.44951e+01 2.54514e+00 445 2002 5 2.67600e+01 1.60005e+00 581 2002 6 2.84081e+01 9.57455e-01 442 2002 7 2.94165e+01 1.47282e+00 1437 2002 8 2.88778e+01 1.33969e+00 1700 2002 9 2.81163e+01 1.51623e+00 1680 2002 10 2.64223e+01 2.23288e+00 2373 2002 11 2.01147e+01 2.58233e+00 1136 2002 12 1.42556e+01 1.23473e+00 602 2003 1 1.13355e+01 1.46402e+00 990 2003 2 1.48532e+01 1.99153e+00 914 2003 3 2.11063e+01 1.64237e+00 1215 2003 4 2.17401e+01 2.17762e+00 2346 2003 5 2.70816e+01 1.46490e+00 2467 2003 6 2.85825e+01 1.44021e+00 1270 2003 7 2.95417e+01 1.50817e+00 1074 2003 8 2.86899e+01 1.18977e+00 1785 2003 9 2.78117e+01 9.13494e-01 1911 2003 10 2.37815e+01 1.03304e+00 2263 2003 11 2.15792e+01 2.05953e+00 2225 2003 12 1.37899e+01 1.37628e+00 330 2004 1 1.28221e+01 1.58524e+00 1016 2004 2 1.33619e+01 1.01774e+00 273 2004 3 1.88342e+01 1.82652e+00 2313 2004 4 2.07285e+01 2.15390e+00 1753 2004 5 2.66120e+01 1.99129e+00 3341 2004 6 2.95036e+01 1.43731e+00 1922 2004 7 2.99901e+01 1.85039e+00 2011 2004 8 2.98913e+01 1.66123e+00 2261 2004 9 2.69335e+01 1.86634e+00 1654 2004 10 2.44677e+01 1.67400e+00 2041 2004 11 2.15861e+01 2.84218e+00 1357 2004 12 1.68869e+01 1.91005e+00 798 2005 1 1.43472e+01 2.27796e+00 585 2005 2 1.49190e+01 1.50111e+00 1010 2005 3 1.70100e+01 2.22405e+00 1500 2005 4 2.03762e+01 1.15914e+00 2107 2005 5 2.54813e+01 2.28136e+00 2554 2005 6 2.83195e+01 1.75489e+00 1969 2005 7 3.04257e+01 1.96821e+00 1968 2005 8 2.95192e+01 2.52301e+00 1879 2005 9 2.79455e+01 1.42600e+00 2172 2005 10 2.56054e+01 2.34865e+00 1763 2005 11 1.97595e+01 2.20129e+00 1163 2005 12 1.44741e+01 1.92770e+00 919 2006 1 1.54108e+01 1.71425e+00 1156 2006 2 1.43024e+01 1.58608e+00 1333 2006 3 1.86739e+01 1.74366e+00 2388 2006 4 2.31636e+01 2.26391e+00 2793 2006 5 2.56287e+01 1.95365e+00 2846 2006 6 2.87008e+01 1.51237e+00 2445 2006 7 3.00525e+01 1.61058e+00 2373 2006 8 3.03635e+01 1.21711e+00 2063 2006 9 2.83296e+01 1.75332e+00 2362 2006 10 2.36571e+01 2.34259e+00 2082 2006 11 1.89262e+01 1.62773e+00 969 2006 12 1.58757e+01 1.01879e+00 520 2007 1 1.48146e+01 1.97281e+00 748 2007 2 1.42418e+01 1.74525e+00 1064 2007 3 1.95645e+01 2.29240e+00 2423 2007 4 2.14170e+01 2.19032e+00 1943 2007 5 2.47266e+01 1.21272e+00 2736 2007 6 2.82894e+01 1.75787e+00 2168 2007 7 3.02034e+01 1.70949e+00 1533 2007 8 3.05272e+01 1.32691e+00 2054 2007 9 2.78143e+01 1.58724e+00 1774 2007 10 2.55261e+01 1.47680e+00 1552 2007 11 1.85908e+01 1.65932e+00 1889 2007 12 1.76405e+01 1.87503e+00 1163 2008 1 1.36381e+01 1.54356e+00 384 2008 2 1.66547e+01 1.62214e+00 886 2008 3 1.82669e+01 1.93700e+00 1769 2008 4 2.24998e+01 1.39416e+00 1975 2008 5 2.48274e+01 1.92936e+00 2285 2008 6 2.91252e+01 1.29250e+00 2014 2008 7 2.97343e+01 1.53523e+00 1833 2008 8 2.83695e+01 1.89527e+00 1464 2008 9 2.71558e+01 2.24166e+00 1985 2008 10 2.34929e+01 2.35510e+00 2292 2008 11 1.70696e+01 2.48821e+00 1408 2008 12 1.55370e+01 1.71474e+00 1068 2009 1 1.48070e+01 2.55789e+00 1106 2009 2 1.41529e+01 1.70609e+00 1413 2009 3 1.87152e+01 2.59727e+00 1562 2009 4 2.19697e+01 1.95825e+00 2306 2009 5 2.67589e+01 1.41123e+00 2065 2009 6 2.94989e+01 1.51120e+00 2365 2009 7 2.91125e+01 1.16772e+00 2207 2009 8 2.97295e+01 1.71771e+00 2029 2009 9 2.84184e+01 1.02354e+00 2066 2009 10 2.59551e+01 3.13464e+00 2149 2009 11 1.88964e+01 1.73811e+00 1646 2009 12 1.40547e+01 2.46965e+00 544 2010 1 1.35563e+01 2.50783e+00 717 2010 2 1.16695e+01 1.39171e+00 1389 2010 3 1.59791e+01 2.34354e+00 1536 2010 4 2.20947e+01 1.54385e+00 2156 2010 5 2.71250e+01 2.14688e+00 3434 2010 6 3.05164e+01 1.51459e+00 2571 2010 7 3.03642e+01 1.40206e+00 2385 2010 8 2.99892e+01 1.32631e+00 1139 2010 9 2.90254e+01 1.78361e+00 2099 2010 10 2.42609e+01 1.32395e+00 3375 2010 11 1.88214e+01 1.44176e+00 1844 2010 12 1.41116e+01 2.84205e+00 605 2011 1 1.16739e+01 9.98745e-01 916 2011 2 1.60731e+01 2.98184e+00 1117 2011 3 1.99019e+01 1.83612e+00 2134 2011 4 2.39930e+01 1.84636e+00 3053 2011 5 2.63404e+01 2.00600e+00 3738 2011 6 2.94979e+01 1.62359e+00 2568 2011 7 2.97070e+01 9.51434e-01 1725 2011 8 3.05089e+01 1.42840e+00 2502 2011 9 2.81147e+01 1.38635e+00 2398 2011 10 2.25035e+01 2.03217e+00 2098 2011 11 1.82329e+01 1.38189e+00 1844 2011 12 1.57533e+01 1.39244e+00 993 2012 1 1.51609e+01 1.77251e+00 1592 2012 2 1.71130e+01 1.89675e+00 410 2012 3 2.20820e+01 2.12803e+00 2438 2012 4 2.35290e+01 1.41651e+00 2621 2012 5 2.74535e+01 1.06915e+00 3087 2012 6 2.79051e+01 1.45128e+00 1726 2012 7 2.96731e+01 1.86471e+00 1922 2012 8 2.90452e+01 1.63749e+00 1639 2012 9 2.82178e+01 1.61312e+00 1734 2012 10 2.47653e+01 2.26427e+00 2169 2012 11 1.75876e+01 1.16067e+00 1797 2012 12 1.68760e+01 1.67357e+00 1004 2013 1 1.56837e+01 2.21382e+00 1115 2013 2 1.62751e+01 2.23646e+00 1289 2013 3 1.58883e+01 1.69865e+00 1896 2013 4 2.13034e+01 2.05671e+00 2023 2013 5 2.51139e+01 2.64941e+00 2444 2013 6 2.84864e+01 1.71035e+00 2520 2013 7 2.78100e+01 2.11267e+00 1281 2013 8 2.99776e+01 1.91167e+00 2122 2013 9 2.93220e+01 1.69263e+00 2188 2013 10 2.49553e+01 2.18103e+00 1970 2013 11 2.02053e+01 2.37558e+00 915 2013 12 1.73094e+01 1.80650e+00 815 2014 1 1.28096e+01 9.83959e-01 803 2014 2 1.45622e+01 2.04188e+00 975 2014 3 1.76681e+01 1.65635e+00 1736 2014 4 2.15782e+01 2.31902e+00 1782 2014 5 2.57733e+01 1.65535e+00 2561 2014 6 2.89572e+01 1.70748e+00 1968 2014 7 3.01889e+01 1.43625e+00 1889 2014 8 3.02025e+01 1.40400e+00 2543 2014 9 2.84365e+01 1.53333e+00 1089 2014 10 2.48396e+01 1.96175e+00 2553 2014 11 1.73379e+01 2.35150e+00 989 2014 12 1.59475e+01 1.54744e+00 1451 2015 1 1.40761e+01 1.33089e+00 1434 2015 2 1.31977e+01 1.25312e+00 1150 2015 3 1.98436e+01 2.78516e+00 1273 2015 4 2.37476e+01 1.93545e+00 752 2015 5 2.68201e+01 2.14462e+00 3327 2015 6 3.00474e+01 1.37031e+00 2340 2015 7 2.97434e+01 1.51712e+00 1304 2015 8 3.01045e+01 1.89349e+00 2073 2015 9 2.76148e+01 1.77620e+00 1065 2015 10 2.39661e+01 1.60382e+00 2036 2015 11 2.28375e+01 3.40654e+00 1569 2015 12 1.85461e+01 2.33407e+00 959 2016 1 1.32388e+01 1.43915e+00 682 2016 2 1.45012e+01 1.99352e+00 1203 2016 3 1.91182e+01 2.35043e+00 1302 2016 4 2.25414e+01 2.14716e+00 2065 2016 5 2.61069e+01 1.90484e+00 2804 2016 6 2.98554e+01 1.51452e+00 2688 2016 7 3.13017e+01 1.44787e+00 2823 2016 8 3.05414e+01 1.17779e+00 1962 2016 9 2.91286e+01 1.48592e+00 2185 2016 10 2.49121e+01 1.81470e+00 2384 2016 11 1.97733e+01 2.59074e+00 2129 2016 12 1.74874e+01 2.23843e+00 950 2017 1 1.67012e+01 2.00148e+00 873 2017 2 1.82156e+01 1.54030e+00 1956 2017 3 1.96401e+01 2.66032e+00 2014 2017 4 2.32423e+01 1.92296e+00 2527 2017 5 2.52337e+01 1.97811e+00 2141 2017 6 2.91981e+01 1.91073e+00 1529 2017 7 3.02158e+01 1.82620e+00 1178 2017 8 2.99214e+01 1.62643e+00 2017 2017 9 2.80698e+01 1.75600e+00 2537 2017 10 2.53616e+01 2.44026e+00 2124 2017 11 1.97749e+01 1.58093e+00 2310 2017 12 1.76233e+01 2.82615e+00 766 2018 1 1.21626e+01 1.69037e+00 1006 2018 2 2.02750e+01 3.31282e+00 1197 2018 3 1.78770e+01 1.84485e+00 1993 2018 4 2.14804e+01 1.54659e+00 1901 2018 5 2.57240e+01 1.90318e+00 1981 2018 6 3.00411e+01 1.47083e+00 2015 2018 7 2.99680e+01 1.11047e+00 1516 2018 8 3.02311e+01 1.29312e+00 1635 2018 9 3.03321e+01 1.15506e+00 2448 2018 10 2.65237e+01 2.59556e+00 1946 2018 11 1.81843e+01 2.83438e+00 696 2018 12 1.52555e+01 2.49846e+00 1140 2019 1 1.48877e+01 2.04773e+00 1259 2019 2 1.82344e+01 2.80426e+00 1208 2019 3 1.88324e+01 1.92580e+00 1870 2019 4 2.22096e+01 2.03117e+00 2232 2019 5 2.79986e+01 1.89439e+00 3112 2019 6 2.91310e+01 1.37914e+00 1878 2019 7 2.97699e+01 1.91352e+00 1443 2019 8 3.04583e+01 1.10220e+00 1995 2019 9 2.90947e+01 1.42924e+00 3012 2019 10 2.60238e+01 1.85408e+00 1974 2019 11 1.81816e+01 1.91703e+00 1908 2019 12 1.63836e+01 1.68397e+00 1673 2020 1 1.56077e+01 1.73910e+00 1684 2020 2 1.55506e+01 1.64602e+00 1647 2020 3 2.19893e+01 3.83165e+00 2460 2020 4 2.38878e+01 1.19003e+00 1699 2020 5 2.50996e+01 1.82433e+00 2977 2020 6 2.98317e+01 1.50874e+00 1981 2020 7 3.00412e+01 1.35329e+00 1766 2020 8 3.10777e+01 1.42586e+00 1300 2020 9 2.79783e+01 2.26713e+00 1530 2020 10 2.55320e+01 1.30807e+00 2061 2020 11 2.09882e+01 2.02554e+00 2705 2020 12 1.42869e+01 1.27962e+00 1853 2021 1 1.43892e+01 2.07565e+00 1864 2021 2 1.67529e+01 2.31256e+00 1573 2021 3 1.89544e+01 2.23250e+00 1920 2021 4 2.20936e+01 2.01515e+00 2374 2021 5 2.54325e+01 1.86791e+00 2480 2021 6 2.77967e+01 1.75546e+00 1003 2021 7 2.93976e+01 1.17619e+00 1234 2021 8 3.02393e+01 1.25210e+00 1732 2021 9 2.87712e+01 1.09666e+00 1872 2021 10 2.58813e+01 2.08791e+00 2020 2021 11 1.81712e+01 1.68431e+00 2290 2021 12 1.80419e+01 1.82984e+00 2326 2022 1 1.55817e+01 2.86216e+00 2280 2022 2 1.67718e+01 3.20601e+00 2119 2022 3 2.00624e+01 1.41395e+00 2467 2022 4 2.34194e+01 1.73726e+00 1466 2022 5 2.71353e+01 1.54764e+00 2747 2022 6 2.98929e+01 1.20444e+00 2333 2022 7 3.07045e+01 1.23725e+00 2234 2022 8 3.07565e+01 1.28806e+00 1724 2022 9 2.80273e+01 1.92721e+00 1788 2022 10 2.27260e+01 1.95955e+00 2967 2022 11 2.17439e+01 2.42367e+00 1681 2022 12 1.78682e+01 3.42030e+00 2555 2023 1 1.50545e+01 1.51262e+00 2389 2023 2 1.75747e+01 1.99304e+00 1903 2023 3 2.05193e+01 2.49139e+00 2753 2023 4 2.33901e+01 1.64571e+00 1948 2023 5 2.57411e+01 2.11616e+00 2350 2023 6 2.76524e+01 1.79641e+00 2209 2023 7 3.08812e+01 1.34913e+00 2863 2023 8 3.12179e+01 1.14441e+00 2678 2023 9 2.90353e+01 1.63579e+00 2158 2023 10 2.29919e+01 1.55040e+00 2336 2023 11 1.98026e+01 2.02707e+00 1566 2023 12 1.40110e+01 1.32344e+00 1125 2024 1 1.38577e+01 1.78646e+00 1248 2024 2 1.60202e+01 1.34179e+00 1998 2024 3 2.03798e+01 1.13624e+00 1604 2024 4 2.24283e+01 7.56131e-01 176