YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.88612e+01 2.48782e-01 114 2000 3 2.01267e+01 1.33557e+00 521 2000 4 2.08872e+01 1.75350e+00 346 2000 5 2.56288e+01 1.91390e+00 545 2000 6 2.80456e+01 1.36303e+00 285 2000 7 2.83987e+01 1.16779e+00 286 2000 8 2.90298e+01 8.39769e-01 189 2000 9 2.68918e+01 1.01504e+00 204 2000 10 2.31584e+01 2.14734e+00 466 2000 11 2.32745e+01 6.73138e-01 241 2000 12 1.48892e+01 1.82515e-01 18 2001 1 nan nan 0 2001 2 1.98637e+01 2.07328e+00 162 2001 3 1.52902e+01 3.82670e-01 186 2001 4 2.09617e+01 2.12379e+00 432 2001 5 2.54479e+01 1.25416e+00 535 2001 6 2.76378e+01 7.89975e-01 199 2001 7 2.83975e+01 1.65044e+00 165 2001 8 2.89661e+01 2.06235e+00 420 2001 9 2.60177e+01 2.23840e+00 358 2001 10 2.27005e+01 1.46967e+00 158 2001 11 1.95983e+01 1.22122e+00 609 2001 12 1.84003e+01 3.23517e+00 322 2002 1 1.84000e+01 1.26603e+00 142 2002 2 1.59118e+01 3.37866e+00 267 2002 3 2.01454e+01 1.62077e+00 140 2002 4 2.43857e+01 2.47754e+00 509 2002 5 2.59791e+01 2.01243e+00 583 2002 6 2.86267e+01 5.21590e-01 318 2002 7 2.92782e+01 1.57680e+00 1335 2002 8 2.86814e+01 1.50060e+00 1577 2002 9 2.87048e+01 1.21643e+00 1285 2002 10 2.66325e+01 2.29109e+00 2413 2002 11 2.02841e+01 2.60388e+00 1043 2002 12 1.44733e+01 8.05263e-01 260 2003 1 1.16062e+01 1.63548e+00 665 2003 2 1.45739e+01 1.80959e+00 923 2003 3 2.10352e+01 1.77562e+00 1122 2003 4 2.18901e+01 2.45115e+00 2173 2003 5 2.70837e+01 1.48835e+00 2226 2003 6 2.84395e+01 1.61766e+00 1486 2003 7 2.91681e+01 1.45363e+00 1182 2003 8 2.88532e+01 1.23038e+00 1862 2003 9 2.73565e+01 1.22492e+00 1686 2003 10 2.39084e+01 1.41432e+00 1912 2003 11 2.11064e+01 2.12023e+00 2240 2003 12 1.33562e+01 7.69268e-01 239 2004 1 1.39107e+01 2.02999e+00 1122 2004 2 1.31895e+01 1.93360e+00 328 2004 3 1.87939e+01 2.33033e+00 2125 2004 4 2.04015e+01 2.21460e+00 2097 2004 5 2.63542e+01 2.03648e+00 3033 2004 6 2.92486e+01 1.64060e+00 1616 2004 7 3.01347e+01 1.65666e+00 1713 2004 8 2.96732e+01 1.67310e+00 2092 2004 9 2.65439e+01 1.98469e+00 1562 2004 10 2.45406e+01 2.19705e+00 2072 2004 11 2.11768e+01 3.22416e+00 1542 2004 12 1.70440e+01 1.68795e+00 644 2005 1 1.48904e+01 2.78261e+00 784 2005 2 1.49215e+01 1.88514e+00 820 2005 3 1.66927e+01 2.07423e+00 1399 2005 4 2.02171e+01 1.26361e+00 2388 2005 5 2.52365e+01 2.19574e+00 2433 2005 6 2.80627e+01 1.53819e+00 1499 2005 7 3.05331e+01 1.64300e+00 1798 2005 8 3.01575e+01 2.29832e+00 1673 2005 9 2.80283e+01 1.48281e+00 2289 2005 10 2.57819e+01 2.00504e+00 1612 2005 11 2.00851e+01 1.80524e+00 1382 2005 12 1.40772e+01 1.48384e+00 617 2006 1 1.54093e+01 2.44885e+00 1175 2006 2 1.42243e+01 2.02017e+00 1060 2006 3 1.88360e+01 2.11012e+00 2142 2006 4 2.30429e+01 2.22019e+00 2606 2006 5 2.52182e+01 2.31656e+00 2755 2006 6 2.85043e+01 1.43353e+00 2388 2006 7 2.99863e+01 1.57706e+00 2494 2006 8 3.02228e+01 1.35197e+00 2031 2006 9 2.84266e+01 1.93892e+00 2444 2006 10 2.37867e+01 2.39054e+00 1793 2006 11 1.87509e+01 1.88426e+00 882 2006 12 1.57650e+01 1.72747e+00 624 2007 1 1.47462e+01 2.76559e+00 901 2007 2 1.44213e+01 2.25312e+00 1279 2007 3 1.91223e+01 2.48763e+00 2286 2007 4 2.10337e+01 2.34214e+00 1757 2007 5 2.40233e+01 1.57538e+00 2486 2007 6 2.84136e+01 1.61464e+00 1924 2007 7 3.05638e+01 1.27665e+00 1712 2007 8 3.06728e+01 1.38278e+00 2352 2007 9 2.79075e+01 1.23097e+00 1619 2007 10 2.58491e+01 1.46837e+00 1416 2007 11 1.83151e+01 1.69327e+00 1851 2007 12 1.74272e+01 2.25209e+00 1230 2008 1 1.36207e+01 2.08834e+00 460 2008 2 1.66581e+01 2.12767e+00 1466 2008 3 1.75960e+01 2.38920e+00 1548 2008 4 2.19432e+01 2.25043e+00 1758 2008 5 2.48420e+01 1.84130e+00 2315 2008 6 2.92472e+01 1.31285e+00 1984 2008 7 2.96917e+01 1.67851e+00 1444 2008 8 2.88668e+01 1.95768e+00 1524 2008 9 2.72890e+01 2.23507e+00 2169 2008 10 2.33720e+01 2.54640e+00 2138 2008 11 1.67351e+01 2.97004e+00 1542 2008 12 1.58813e+01 2.21755e+00 1276 2009 1 1.51176e+01 2.12356e+00 942 2009 2 1.43164e+01 2.20732e+00 1352 2009 3 1.84781e+01 3.13632e+00 1883 2009 4 2.22153e+01 1.98862e+00 1974 2009 5 2.65030e+01 1.56418e+00 2043 2009 6 2.91058e+01 1.60841e+00 2446 2009 7 2.88385e+01 1.53018e+00 1669 2009 8 2.94786e+01 2.01487e+00 1793 2009 9 2.86490e+01 1.44525e+00 1894 2009 10 2.66467e+01 2.89785e+00 2118 2009 11 1.89645e+01 2.04202e+00 1180 2009 12 1.33397e+01 2.88745e+00 244 2010 1 1.39692e+01 2.59785e+00 671 2010 2 1.13615e+01 1.55299e+00 1054 2010 3 1.55182e+01 2.70962e+00 1589 2010 4 2.18849e+01 1.78397e+00 1849 2010 5 2.69793e+01 1.61427e+00 2823 2010 6 3.05938e+01 1.47476e+00 2335 2010 7 3.01772e+01 1.93425e+00 2399 2010 8 2.98739e+01 2.06522e+00 1355 2010 9 2.91675e+01 2.00442e+00 2048 2010 10 2.43286e+01 1.62212e+00 2910 2010 11 1.94477e+01 2.02195e+00 1846 2010 12 1.36125e+01 2.23400e+00 567 2011 1 1.22618e+01 1.41488e+00 974 2011 2 1.64387e+01 3.22906e+00 1257 2011 3 1.96195e+01 2.17148e+00 2020 2011 4 2.39054e+01 1.98639e+00 2923 2011 5 2.60976e+01 2.37563e+00 3193 2011 6 2.96081e+01 1.54167e+00 2279 2011 7 2.94759e+01 1.68772e+00 1764 2011 8 3.07375e+01 1.21773e+00 2363 2011 9 2.82446e+01 1.37392e+00 2588 2011 10 2.22309e+01 2.71647e+00 1906 2011 11 1.85765e+01 1.96358e+00 1668 2011 12 1.60202e+01 1.63072e+00 1268 2012 1 1.54485e+01 1.99049e+00 1513 2012 2 1.75552e+01 1.31363e+00 314 2012 3 2.20387e+01 2.27759e+00 2376 2012 4 2.30570e+01 2.01975e+00 2466 2012 5 2.71449e+01 1.19455e+00 2676 2012 6 2.73844e+01 1.61179e+00 1599 2012 7 2.95686e+01 1.78936e+00 2047 2012 8 2.94135e+01 1.47332e+00 1768 2012 9 2.82955e+01 1.73790e+00 1846 2012 10 2.41592e+01 1.95241e+00 1894 2012 11 1.75372e+01 1.31812e+00 1443 2012 12 1.70440e+01 2.08048e+00 1226 2013 1 1.69396e+01 2.15810e+00 1393 2013 2 1.56676e+01 2.40947e+00 1305 2013 3 1.53783e+01 2.13954e+00 1961 2013 4 2.13205e+01 1.94026e+00 1729 2013 5 2.48323e+01 2.67681e+00 2479 2013 6 2.81357e+01 1.74490e+00 2119 2013 7 2.82492e+01 1.82150e+00 1201 2013 8 3.01018e+01 1.97564e+00 2116 2013 9 2.91951e+01 1.77590e+00 2255 2013 10 2.42897e+01 2.69441e+00 2317 2013 11 1.92079e+01 2.34367e+00 552 2013 12 1.76428e+01 2.71645e+00 1107 2014 1 1.26076e+01 1.48841e+00 648 2014 2 1.47430e+01 1.98948e+00 963 2014 3 1.74310e+01 1.71316e+00 1660 2014 4 2.19349e+01 2.50216e+00 1903 2014 5 2.53049e+01 2.18389e+00 1935 2014 6 2.88920e+01 1.89611e+00 1948 2014 7 3.03620e+01 1.66294e+00 1607 2014 8 2.96542e+01 1.67192e+00 2402 2014 9 2.80778e+01 1.63869e+00 947 2014 10 2.42941e+01 2.30034e+00 2590 2014 11 1.65186e+01 2.23411e+00 1042 2014 12 1.61357e+01 1.90079e+00 1386 2015 1 1.41441e+01 1.29966e+00 1249 2015 2 1.29979e+01 1.67525e+00 1145 2015 3 1.94884e+01 2.68037e+00 1632 2015 4 2.38939e+01 1.96006e+00 1135 2015 5 2.69618e+01 2.23068e+00 3349 2015 6 2.99734e+01 1.61679e+00 2348 2015 7 2.93522e+01 1.77466e+00 1634 2015 8 3.00622e+01 1.71750e+00 2009 2015 9 2.72433e+01 1.77422e+00 913 2015 10 2.38776e+01 1.86955e+00 1889 2015 11 2.22445e+01 3.82472e+00 2119 2015 12 1.87588e+01 2.67703e+00 874 2016 1 1.33105e+01 1.34619e+00 836 2016 2 1.46980e+01 2.24919e+00 1365 2016 3 1.81992e+01 2.49925e+00 993 2016 4 2.23152e+01 2.28986e+00 1878 2016 5 2.60746e+01 2.12384e+00 2444 2016 6 2.97094e+01 1.68528e+00 2270 2016 7 3.13148e+01 1.65158e+00 2460 2016 8 3.02179e+01 1.60558e+00 2038 2016 9 2.89976e+01 1.45449e+00 2130 2016 10 2.42964e+01 1.89124e+00 2167 2016 11 1.98518e+01 2.53337e+00 1900 2016 12 1.77543e+01 2.21614e+00 1213 2017 1 1.56129e+01 2.65458e+00 1146 2017 2 1.82178e+01 1.90501e+00 2094 2017 3 1.95011e+01 3.21482e+00 1948 2017 4 2.33087e+01 2.00858e+00 2035 2017 5 2.48700e+01 2.12298e+00 2009 2017 6 2.86800e+01 2.01652e+00 1237 2017 7 3.00321e+01 1.75277e+00 1587 2017 8 2.99076e+01 1.56921e+00 1746 2017 9 2.82564e+01 1.47453e+00 2162 2017 10 2.48806e+01 3.14943e+00 2443 2017 11 1.95345e+01 1.52734e+00 2179 2017 12 1.74911e+01 3.21409e+00 910 2018 1 1.19854e+01 2.42778e+00 642 2018 2 2.06219e+01 4.34417e+00 1537 2018 3 1.76462e+01 2.67337e+00 2107 2018 4 2.14085e+01 1.69705e+00 2022 2018 5 2.55532e+01 1.82187e+00 1728 2018 6 2.94710e+01 2.06972e+00 2296 2018 7 2.97529e+01 1.41809e+00 1436 2018 8 2.99056e+01 1.64125e+00 1512 2018 9 3.00661e+01 1.50089e+00 2726 2018 10 2.65411e+01 2.53470e+00 2461 2018 11 1.85885e+01 3.32409e+00 893 2018 12 1.60862e+01 2.75042e+00 1083 2019 1 1.47525e+01 2.78979e+00 940 2019 2 1.86540e+01 2.68009e+00 956 2019 3 1.86502e+01 2.34536e+00 1690 2019 4 2.23214e+01 2.37933e+00 2141 2019 5 2.79627e+01 1.85668e+00 2940 2019 6 2.93033e+01 1.54176e+00 1692 2019 7 2.95938e+01 2.03728e+00 1392 2019 8 3.00222e+01 1.11391e+00 1526 2019 9 2.91321e+01 1.67107e+00 2983 2019 10 2.56178e+01 1.85877e+00 2067 2019 11 1.87363e+01 2.23180e+00 1765 2019 12 1.67392e+01 2.17984e+00 1356 2020 1 1.56096e+01 2.32845e+00 1621 2020 2 1.53918e+01 2.06617e+00 1346 2020 3 2.31094e+01 3.69740e+00 2543 2020 4 2.37433e+01 1.66577e+00 1528 2020 5 2.51921e+01 2.08972e+00 2880 2020 6 2.98992e+01 1.90583e+00 2044 2020 7 3.00924e+01 1.31937e+00 1796 2020 8 3.11989e+01 1.30414e+00 1141 2020 9 2.84239e+01 2.13270e+00 1474 2020 10 2.59251e+01 1.48347e+00 1999 2020 11 2.09207e+01 2.29917e+00 2187 2020 12 1.41418e+01 1.65918e+00 1443 2021 1 1.51241e+01 2.27574e+00 1631 2021 2 1.73303e+01 2.54267e+00 1423 2021 3 1.96922e+01 2.82738e+00 2037 2021 4 2.23821e+01 2.56574e+00 2204 2021 5 2.55873e+01 2.02636e+00 2447 2021 6 2.84052e+01 1.57864e+00 1327 2021 7 2.97333e+01 1.16270e+00 964 2021 8 3.01721e+01 1.51296e+00 1596 2021 9 2.81963e+01 1.31649e+00 1869 2021 10 2.57534e+01 2.27849e+00 1834 2021 11 1.78460e+01 1.84701e+00 2283 2021 12 1.82400e+01 2.23151e+00 2292 2022 1 1.49283e+01 2.95632e+00 2027 2022 2 1.73742e+01 3.70718e+00 2074 2022 3 2.00494e+01 1.68288e+00 2314 2022 4 2.30285e+01 1.89046e+00 1419 2022 5 2.71953e+01 1.79293e+00 2827 2022 6 2.95501e+01 1.46422e+00 2304 2022 7 3.06254e+01 1.54342e+00 1762 2022 8 3.05692e+01 1.69610e+00 1962 2022 9 2.84216e+01 2.01418e+00 1793 2022 10 2.28544e+01 2.43952e+00 2635 2022 11 2.21406e+01 2.28081e+00 1501 2022 12 1.84996e+01 3.17974e+00 2313 2023 1 1.55021e+01 1.73467e+00 2314 2023 2 1.77656e+01 2.56480e+00 1675 2023 3 2.07637e+01 2.65014e+00 2412 2023 4 2.36535e+01 1.63888e+00 1615 2023 5 2.57549e+01 2.31616e+00 2126 2023 6 2.81433e+01 1.73918e+00 1937 2023 7 3.10701e+01 1.40343e+00 2408 2023 8 3.11831e+01 1.21107e+00 2311 2023 9 2.89429e+01 1.70643e+00 2182 2023 10 2.32158e+01 1.91731e+00 2222 2023 11 1.96969e+01 2.39208e+00 1597 2023 12 1.41838e+01 1.32791e+00 1001 2024 1 1.34939e+01 1.99361e+00 1023 2024 2 1.58758e+01 1.49818e+00 1818 2024 3 2.01689e+01 1.60680e+00 1377 2024 4 2.23574e+01 1.06744e+00 266