YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.92803e+01 2.93853e-01 170 2000 3 2.18110e+01 1.05636e+00 538 2000 4 2.34139e+01 1.09490e+00 534 2000 5 2.61951e+01 1.09977e+00 230 2000 6 2.88883e+01 1.53396e+00 296 2000 7 2.92202e+01 8.95904e-01 390 2000 8 2.99578e+01 5.74957e-01 424 2000 9 2.92109e+01 1.00827e+00 320 2000 10 2.42922e+01 1.60017e+00 740 2000 11 2.32710e+01 9.38545e-01 281 2000 12 1.81997e+01 8.26984e-01 191 2001 1 1.33758e+01 7.15555e-02 18 2001 2 2.04131e+01 1.58396e+00 263 2001 3 1.92312e+01 1.25505e+00 335 2001 4 2.30464e+01 1.51002e+00 535 2001 5 2.45374e+01 1.84733e+00 582 2001 6 2.89061e+01 2.06398e+00 196 2001 7 2.89676e+01 9.59769e-01 315 2001 8 3.00979e+01 9.46296e-01 355 2001 9 2.79302e+01 1.80076e+00 403 2001 10 2.44369e+01 1.62749e+00 426 2001 11 2.10785e+01 8.99518e-01 562 2001 12 2.20861e+01 1.27958e+00 461 2002 1 1.86482e+01 2.13493e+00 193 2002 2 1.82766e+01 1.43130e+00 329 2002 3 1.96646e+01 2.16709e+00 281 2002 4 2.48412e+01 1.18862e+00 428 2002 5 2.66638e+01 9.26704e-01 621 2002 6 2.76128e+01 9.15212e-01 370 2002 7 2.88032e+01 1.70536e+00 1243 2002 8 2.92434e+01 1.32543e+00 1429 2002 9 2.86013e+01 1.32099e+00 1529 2002 10 2.77128e+01 1.30457e+00 2841 2002 11 2.28478e+01 2.48399e+00 1363 2002 12 1.75464e+01 1.29988e+00 749 2003 1 1.42226e+01 1.44309e+00 1278 2003 2 1.65448e+01 1.86547e+00 793 2003 3 2.21039e+01 1.78802e+00 799 2003 4 2.26327e+01 1.42962e+00 1726 2003 5 2.70937e+01 2.09286e+00 1846 2003 6 2.83955e+01 1.52197e+00 1165 2003 7 2.96651e+01 1.53582e+00 1268 2003 8 2.90169e+01 1.16578e+00 1368 2003 9 2.87241e+01 1.00473e+00 1278 2003 10 2.58177e+01 1.28783e+00 1817 2003 11 2.32471e+01 1.51701e+00 2153 2003 12 1.69626e+01 1.86449e+00 618 2004 1 1.61704e+01 1.24114e+00 1445 2004 2 1.66492e+01 1.42622e+00 596 2004 3 1.96461e+01 1.34980e+00 1576 2004 4 2.14861e+01 1.58612e+00 1998 2004 5 2.62638e+01 1.77869e+00 2390 2004 6 3.02039e+01 1.22772e+00 2192 2004 7 2.99033e+01 1.35706e+00 1511 2004 8 2.97501e+01 1.55528e+00 1185 2004 9 2.81648e+01 1.90275e+00 1695 2004 10 2.61303e+01 1.38499e+00 2527 2004 11 2.27744e+01 1.69944e+00 1822 2004 12 1.79847e+01 2.49802e+00 1087 2005 1 1.65760e+01 1.42956e+00 1177 2005 2 1.64241e+01 1.33890e+00 1406 2005 3 1.94592e+01 1.71079e+00 881 2005 4 2.21276e+01 9.64382e-01 2108 2005 5 2.51734e+01 1.79138e+00 2123 2005 6 2.80857e+01 1.17114e+00 1388 2005 7 2.97063e+01 1.59233e+00 2078 2005 8 3.07620e+01 1.46885e+00 1744 2005 9 2.84552e+01 9.63650e-01 2112 2005 10 2.56641e+01 2.62907e+00 1787 2005 11 2.13305e+01 1.46925e+00 1457 2005 12 1.80880e+01 1.76485e+00 989 2006 1 1.68286e+01 9.94955e-01 1316 2006 2 1.70361e+01 1.03078e+00 936 2006 3 1.99227e+01 1.40402e+00 1955 2006 4 2.38750e+01 1.96305e+00 2367 2006 5 2.62230e+01 1.24831e+00 2133 2006 6 2.82898e+01 1.34763e+00 1943 2006 7 2.94724e+01 1.42182e+00 1525 2006 8 3.04123e+01 1.20270e+00 2005 2006 9 2.92852e+01 1.11168e+00 2044 2006 10 2.61393e+01 1.80436e+00 2562 2006 11 2.10984e+01 2.07904e+00 1391 2006 12 1.84213e+01 9.23251e-01 795 2007 1 1.86901e+01 1.31464e+00 1087 2007 2 1.58616e+01 1.06377e+00 913 2007 3 1.95948e+01 1.28090e+00 1477 2007 4 2.21883e+01 1.39403e+00 1724 2007 5 2.45066e+01 1.09751e+00 2043 2007 6 2.76492e+01 1.71511e+00 2023 2007 7 3.02230e+01 1.79721e+00 1547 2007 8 3.05743e+01 1.07421e+00 2221 2007 9 2.89876e+01 1.42955e+00 1647 2007 10 2.71247e+01 1.18089e+00 1571 2007 11 2.13854e+01 1.56592e+00 2049 2007 12 2.08901e+01 1.25390e+00 1944 2008 1 1.66314e+01 1.42665e+00 873 2008 2 1.87919e+01 8.87853e-01 1429 2008 3 1.93583e+01 1.26464e+00 1544 2008 4 2.32338e+01 1.31359e+00 1860 2008 5 2.59455e+01 1.61033e+00 2139 2008 6 2.91792e+01 1.38393e+00 1858 2008 7 2.92721e+01 1.65992e+00 1025 2008 8 2.95755e+01 1.22710e+00 1459 2008 9 2.82399e+01 1.35509e+00 1598 2008 10 2.53012e+01 2.05733e+00 2064 2008 11 1.90325e+01 1.85449e+00 1819 2008 12 1.79183e+01 1.08703e+00 1261 2009 1 1.72724e+01 2.19361e+00 1669 2009 2 1.61708e+01 1.37308e+00 1134 2009 3 1.93783e+01 2.11257e+00 1603 2009 4 2.28355e+01 1.14305e+00 1571 2009 5 2.66439e+01 1.56146e+00 1841 2009 6 2.92480e+01 1.42337e+00 1708 2009 7 2.99160e+01 1.37583e+00 1899 2009 8 2.98417e+01 1.38992e+00 1813 2009 9 2.95604e+01 1.18799e+00 1693 2009 10 2.73904e+01 2.38405e+00 2115 2009 11 2.16019e+01 1.76972e+00 1036 2009 12 1.77033e+01 1.85180e+00 714 2010 1 1.37116e+01 2.82567e+00 784 2010 2 1.38722e+01 1.34080e+00 684 2010 3 1.57582e+01 2.00119e+00 1362 2010 4 2.09764e+01 1.75819e+00 1400 2010 5 2.70292e+01 1.87887e+00 2576 2010 6 3.01654e+01 1.05245e+00 1890 2010 7 2.89272e+01 1.13914e+00 1618 2010 8 3.01430e+01 1.91420e+00 1272 2010 9 2.92077e+01 1.19963e+00 1979 2010 10 2.57057e+01 1.12806e+00 2775 2010 11 2.12732e+01 1.76817e+00 1879 2010 12 1.64268e+01 3.32099e+00 1079 2011 1 1.40536e+01 1.08052e+00 1033 2011 2 1.67256e+01 1.57503e+00 1018 2011 3 2.03552e+01 1.46584e+00 2072 2011 4 2.46516e+01 1.65680e+00 2547 2011 5 2.68179e+01 1.31580e+00 2601 2011 6 2.87581e+01 1.74602e+00 1916 2011 7 2.98638e+01 1.37395e+00 1429 2011 8 3.00684e+01 1.25654e+00 1828 2011 9 2.88881e+01 1.15858e+00 1570 2011 10 2.48717e+01 2.26829e+00 1880 2011 11 2.09511e+01 8.42404e-01 1765 2011 12 1.92249e+01 8.90000e-01 2016 2012 1 1.73268e+01 1.28357e+00 1150 2012 2 1.87457e+01 1.72647e+00 888 2012 3 2.25787e+01 1.49350e+00 2510 2012 4 2.40582e+01 1.34521e+00 2039 2012 5 2.71204e+01 1.47091e+00 2083 2012 6 2.77789e+01 1.32410e+00 1635 2012 7 2.90372e+01 1.46856e+00 1822 2012 8 3.00562e+01 1.46942e+00 1187 2012 9 2.86391e+01 1.32521e+00 1231 2012 10 2.65479e+01 1.84124e+00 1656 2012 11 1.97412e+01 1.07914e+00 1848 2012 12 1.94622e+01 1.25309e+00 1294 2013 1 1.88328e+01 1.01711e+00 1083 2013 2 1.79965e+01 1.63617e+00 1548 2013 3 1.80430e+01 1.19384e+00 1349 2013 4 2.27215e+01 2.38383e+00 1295 2013 5 2.58162e+01 1.27020e+00 2016 2013 6 2.89293e+01 1.63671e+00 1524 2013 7 2.90828e+01 1.45025e+00 1082 2013 8 3.00030e+01 1.13847e+00 1686 2013 9 2.95710e+01 1.43015e+00 2169 2013 10 2.67309e+01 1.62645e+00 2214 2013 11 2.23047e+01 1.82033e+00 1154 2013 12 2.01725e+01 1.19802e+00 1461 2014 1 1.58523e+01 1.14076e+00 861 2014 2 1.77829e+01 1.22853e+00 850 2014 3 1.96330e+01 1.29744e+00 1468 2014 4 2.25111e+01 1.76500e+00 1282 2014 5 2.55697e+01 1.30216e+00 1759 2014 6 2.92894e+01 1.43307e+00 1760 2014 7 3.04022e+01 1.45225e+00 1379 2014 8 3.07307e+01 1.05185e+00 1940 2014 9 2.95323e+01 1.40976e+00 1298 2014 10 2.64856e+01 1.56730e+00 2469 2014 11 2.07392e+01 1.80283e+00 1690 2014 12 1.81456e+01 1.07376e+00 1122 2015 1 1.77887e+01 1.20994e+00 1120 2015 2 1.61976e+01 1.09909e+00 1433 2015 3 2.16807e+01 1.97070e+00 1713 2015 4 2.50582e+01 2.06894e+00 1681 2015 5 2.71436e+01 1.81518e+00 2533 2015 6 2.98406e+01 1.29053e+00 1616 2015 7 3.02879e+01 1.29754e+00 1300 2015 8 3.01400e+01 1.79185e+00 1421 2015 9 2.93558e+01 1.23901e+00 964 2015 10 2.64031e+01 1.54981e+00 1639 2015 11 2.44247e+01 2.02622e+00 2114 2015 12 2.15441e+01 1.41360e+00 1247 2016 1 1.89886e+01 2.15663e+00 692 2016 2 1.59830e+01 1.68437e+00 1174 2016 3 1.96449e+01 2.03061e+00 936 2016 4 2.34471e+01 1.69589e+00 2087 2016 5 2.66236e+01 1.29411e+00 1936 2016 6 2.91492e+01 1.34094e+00 1606 2016 7 3.06642e+01 1.28767e+00 1810 2016 8 3.03601e+01 1.28988e+00 1680 2016 9 2.94105e+01 1.34445e+00 2132 2016 10 2.64773e+01 1.78223e+00 1901 2016 11 2.20153e+01 1.74105e+00 1779 2016 12 2.06374e+01 9.81393e-01 2201 2017 1 1.88492e+01 1.46821e+00 1621 2017 2 1.93716e+01 1.47586e+00 1418 2017 3 2.06491e+01 1.54774e+00 1882 2017 4 2.37092e+01 1.36625e+00 1785 2017 5 2.60720e+01 1.65294e+00 1907 2017 6 2.91446e+01 1.66273e+00 946 2017 7 3.04736e+01 1.32980e+00 1697 2017 8 3.10509e+01 1.37722e+00 1541 2017 9 2.93428e+01 1.25661e+00 1732 2017 10 2.62178e+01 2.27804e+00 1902 2017 11 2.20047e+01 9.92040e-01 2084 2017 12 2.04757e+01 1.49321e+00 1769 2018 1 1.42248e+01 1.03054e+00 756 2018 2 2.06634e+01 2.96920e+00 1890 2018 3 2.01930e+01 1.96916e+00 2074 2018 4 2.35943e+01 1.27567e+00 1656 2018 5 2.49691e+01 1.21085e+00 981 2018 6 2.91774e+01 1.80318e+00 1926 2018 7 2.99218e+01 1.49194e+00 1413 2018 8 3.04879e+01 1.34585e+00 1856 2018 9 2.98818e+01 1.38856e+00 2114 2018 10 2.76996e+01 1.72196e+00 2654 2018 11 2.36369e+01 2.09221e+00 1744 2018 12 1.84256e+01 1.64504e+00 863 2019 1 1.76957e+01 1.96620e+00 1300 2019 2 1.98651e+01 2.49344e+00 1319 2019 3 2.13123e+01 1.09916e+00 1862 2019 4 2.37141e+01 1.56098e+00 1958 2019 5 2.74694e+01 1.47546e+00 2409 2019 6 2.99829e+01 1.40208e+00 1820 2019 7 3.01302e+01 1.15972e+00 1702 2019 8 2.99301e+01 1.05328e+00 1289 2019 9 2.89513e+01 1.30979e+00 2481 2019 10 2.74028e+01 1.01112e+00 2129 2019 11 2.30071e+01 2.65968e+00 1713 2019 12 1.98766e+01 1.07479e+00 1287 2020 1 1.85309e+01 1.57549e+00 2114 2020 2 1.90317e+01 1.58759e+00 1498 2020 3 2.28178e+01 2.85873e+00 2058 2020 4 2.53415e+01 1.09368e+00 1396 2020 5 2.61552e+01 1.35628e+00 2328 2020 6 2.98300e+01 1.37597e+00 1653 2020 7 3.05858e+01 1.32499e+00 1673 2020 8 3.14180e+01 1.29602e+00 893 2020 9 2.96938e+01 1.57955e+00 977 2020 10 2.73890e+01 1.09121e+00 1419 2020 11 2.32287e+01 1.37650e+00 2021 2020 12 1.76513e+01 1.35667e+00 2062 2021 1 1.73721e+01 1.09442e+00 1281 2021 2 1.93681e+01 1.93321e+00 1930 2021 3 2.11232e+01 1.59249e+00 1830 2021 4 2.38894e+01 1.74593e+00 2226 2021 5 2.66899e+01 1.54411e+00 2613 2021 6 2.87584e+01 1.53954e+00 1218 2021 7 2.98958e+01 1.57535e+00 1356 2021 8 3.03507e+01 1.27179e+00 1478 2021 9 2.93262e+01 9.91567e-01 1766 2021 10 2.77071e+01 1.54713e+00 2209 2021 11 2.09730e+01 1.72268e+00 2050 2021 12 2.05164e+01 1.18555e+00 2598 2022 1 1.88644e+01 2.34112e+00 1912 2022 2 1.80277e+01 1.99469e+00 1878 2022 3 2.18331e+01 9.95237e-01 2727 2022 4 2.43894e+01 1.04575e+00 1492 2022 5 2.74669e+01 1.28682e+00 2150 2022 6 2.93096e+01 1.62754e+00 1564 2022 7 3.11891e+01 1.04498e+00 1965 2022 8 3.07878e+01 1.24734e+00 1205 2022 9 2.97820e+01 1.69895e+00 1550 2022 10 2.46758e+01 1.53621e+00 2326 2022 11 2.39364e+01 1.77328e+00 1459 2022 12 2.05824e+01 2.81974e+00 2041 2023 1 1.77684e+01 1.20048e+00 2210 2023 2 2.04023e+01 1.65556e+00 2555 2023 3 2.31939e+01 1.67934e+00 3145 2023 4 2.55474e+01 1.13868e+00 1824 2023 5 2.74079e+01 1.77333e+00 3441 2023 6 2.87673e+01 1.60989e+00 2515 2023 7 3.14534e+01 1.21015e+00 2072 2023 8 3.17779e+01 1.45567e+00 2499 2023 9 2.99428e+01 1.31066e+00 2766 2023 10 2.56002e+01 2.14530e+00 2156 2023 11 2.25601e+01 1.35611e+00 1773 2023 12 1.78863e+01 1.45659e+00 708 2024 1 1.68965e+01 8.86512e-01 864 2024 2 1.76831e+01 9.95595e-01 1926 2024 3 2.27030e+01 1.09844e+00 1433 2024 4 2.32138e+01 8.18956e-01 83