YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 3.24443e+00 4.62463e-02 105 2000 3 3.87354e+00 7.88690e-01 332 2000 4 6.21906e+00 6.17314e-01 122 2000 5 9.42498e+00 1.68487e+00 303 2000 6 1.45075e+01 4.07590e-01 171 2000 7 1.71753e+01 1.43638e+00 368 2000 8 1.87959e+01 7.42996e-01 292 2000 9 1.61920e+01 1.88564e+00 445 2000 10 1.27207e+01 2.22909e+00 257 2000 11 9.17437e+00 7.58056e-01 408 2000 12 5.65787e+00 1.35433e+00 272 2001 1 3.31851e+00 3.49686e-01 329 2001 2 3.37657e+00 3.25762e-01 313 2001 3 3.05063e+00 7.13534e-01 292 2001 4 5.90246e+00 1.95459e+00 323 2001 5 1.16259e+01 1.30155e+00 243 2001 6 1.42617e+01 9.47638e-01 143 2001 7 1.48539e+01 1.88282e+00 299 2001 8 1.78216e+01 6.46896e-01 215 2001 9 1.54027e+01 1.09190e+00 613 2001 10 1.06074e+01 7.24961e-01 435 2001 11 8.27493e+00 1.18928e+00 416 2001 12 7.35295e+00 1.01144e+00 383 2002 1 4.76778e+00 5.93892e-01 389 2002 2 3.49818e+00 4.82177e-01 140 2002 3 4.42000e+00 7.01948e-01 185 2002 4 6.71691e+00 1.54480e+00 307 2002 5 9.63828e+00 2.22998e+00 303 2002 6 1.26797e+01 3.16813e+00 229 2002 7 1.68365e+01 1.74854e+00 1141 2002 8 1.89885e+01 1.89579e+00 1346 2002 9 1.68483e+01 1.93083e+00 1303 2002 10 1.38678e+01 1.86209e+00 1810 2002 11 9.48281e+00 1.08106e+00 1477 2002 12 5.57811e+00 8.40323e-01 1803 2003 1 2.87083e+00 1.17613e+00 732 2003 2 1.92017e+00 7.62381e-01 404 2003 3 2.31833e+00 1.13749e+00 560 2003 4 4.18300e+00 1.48857e+00 609 2003 5 8.35810e+00 1.63809e+00 709 2003 6 1.32319e+01 2.54196e+00 643 2003 7 1.71207e+01 1.36722e+00 780 2003 8 1.78954e+01 1.72151e+00 1160 2003 9 1.70080e+01 1.56789e+00 1554 2003 10 1.22832e+01 1.96143e+00 1598 2003 11 8.89652e+00 1.14961e+00 1088 2003 12 5.44239e+00 8.69682e-01 1530 2004 1 3.46679e+00 1.46094e+00 687 2004 2 1.47096e+00 5.78299e-01 909 2004 3 2.46561e+00 3.85116e-01 531 2004 4 5.22819e+00 1.34173e+00 780 2004 5 8.99385e+00 2.69316e+00 711 2004 6 1.38172e+01 1.04157e+00 1191 2004 7 1.75696e+01 1.79529e+00 1434 2004 8 1.72765e+01 1.60259e+00 1389 2004 9 1.57846e+01 1.15020e+00 1331 2004 10 1.33913e+01 1.81198e+00 1585 2004 11 9.24769e+00 1.44176e+00 2247 2004 12 5.97653e+00 1.35579e+00 1471 2005 1 3.06308e+00 1.13263e+00 715 2005 2 1.61943e+00 8.87781e-01 481 2005 3 2.18520e+00 7.78863e-01 968 2005 4 6.61358e+00 1.40286e+00 1458 2005 5 8.17487e+00 1.62230e+00 489 2005 6 1.40955e+01 1.55499e+00 513 2005 7 1.77256e+01 1.36741e+00 1119 2005 8 1.86699e+01 1.45468e+00 1584 2005 9 1.57645e+01 1.46516e+00 1519 2005 10 1.18602e+01 1.25025e+00 787 2005 11 9.35580e+00 1.18188e+00 1618 2005 12 5.59930e+00 1.19436e+00 1705 2006 1 4.25656e+00 6.77796e-01 1077 2006 2 3.32347e+00 1.11488e+00 832 2006 3 2.98381e+00 9.39748e-01 1159 2006 4 6.85940e+00 1.38933e+00 1516 2006 5 9.56228e+00 1.44441e+00 683 2006 6 1.47079e+01 1.93831e+00 551 2006 7 1.78402e+01 2.31161e+00 828 2006 8 1.74894e+01 1.01103e+00 1285 2006 9 1.66211e+01 1.81525e+00 1766 2006 10 1.20081e+01 1.58568e+00 1684 2006 11 9.56926e+00 2.48083e+00 1082 2006 12 7.82427e+00 1.16507e+00 2006 2007 1 5.69564e+00 1.03328e+00 1164 2007 2 2.57496e+00 1.01800e+00 1097 2007 3 3.60182e+00 9.44236e-01 1112 2007 4 4.53361e+00 1.33968e+00 838 2007 5 1.01695e+01 2.26874e+00 1287 2007 6 1.47056e+01 1.31746e+00 1231 2007 7 1.73625e+01 2.26380e+00 1361 2007 8 1.73355e+01 1.90154e+00 1582 2007 9 1.51414e+01 1.19293e+00 1274 2007 10 1.29995e+01 1.28744e+00 1364 2007 11 9.01559e+00 1.30716e+00 1118 2007 12 5.23902e+00 1.17178e+00 928 2008 1 3.38291e+00 6.39018e-01 947 2008 2 2.78856e+00 5.38663e-01 830 2008 3 3.22796e+00 3.60237e-01 1158 2008 4 7.12307e+00 2.00194e+00 1077 2008 5 9.47369e+00 1.29085e+00 1241 2008 6 1.57167e+01 1.41106e+00 906 2008 7 1.79520e+01 1.75690e+00 1584 2008 8 1.88985e+01 1.30101e+00 2462 2008 9 1.63497e+01 2.35957e+00 1503 2008 10 1.27718e+01 1.35180e+00 2121 2008 11 9.20395e+00 1.31778e+00 1441 2008 12 6.10933e+00 9.93409e-01 1445 2009 1 3.32953e+00 1.07336e+00 998 2009 2 2.00710e+00 6.19266e-01 822 2009 3 3.13026e+00 5.40802e-01 668 2009 4 5.17418e+00 1.86846e+00 1198 2009 5 1.00716e+01 1.51954e+00 790 2009 6 1.36779e+01 2.05196e+00 759 2009 7 1.68956e+01 1.50296e+00 1682 2009 8 1.88032e+01 1.70446e+00 1656 2009 9 1.68615e+01 8.69975e-01 2185 2009 10 1.13544e+01 1.20900e+00 1656 2009 11 1.03197e+01 7.98907e-01 1534 2009 12 7.04086e+00 1.74651e+00 1731 2010 1 3.06156e+00 8.58158e-01 911 2010 2 2.51019e+00 8.97291e-01 733 2010 3 3.89364e+00 1.24845e+00 1048 2010 4 7.55139e+00 9.52311e-01 1279 2010 5 1.12122e+01 3.02453e+00 1116 2010 6 1.47330e+01 2.41689e+00 842 2010 7 1.83870e+01 2.38608e+00 1460 2010 8 1.76610e+01 9.95516e-01 1168 2010 9 1.63371e+01 1.86902e+00 1607 2010 10 1.33635e+01 1.36736e+00 1887 2010 11 8.97689e+00 1.30424e+00 1381 2010 12 5.79460e+00 1.56511e+00 1490 2011 1 3.64288e+00 1.16984e+00 806 2011 2 2.14287e+00 5.79712e-01 929 2011 3 3.31166e+00 7.35368e-01 1287 2011 4 5.14157e+00 1.01823e+00 815 2011 5 9.92867e+00 3.21072e+00 630 2011 6 1.50098e+01 2.58995e+00 1127 2011 7 1.84754e+01 1.17693e+00 1608 2011 8 1.87012e+01 1.11595e+00 1517 2011 9 1.63036e+01 1.20026e+00 1719 2011 10 1.38694e+01 1.49973e+00 1310 2011 11 1.01369e+01 1.15646e+00 1519 2011 12 8.18024e+00 1.30169e+00 1772 2012 1 5.56873e+00 1.09224e+00 1342 2012 2 4.14625e+00 9.42230e-01 1554 2012 3 5.70580e+00 1.41987e+00 544 2012 4 7.88139e+00 1.41788e+00 1681 2012 5 1.21505e+01 2.57296e+00 939 2012 6 1.60927e+01 1.96406e+00 1106 2012 7 1.89781e+01 1.52731e+00 1651 2012 8 1.95228e+01 1.55947e+00 2158 2012 9 1.58516e+01 1.19411e+00 1539 2012 10 1.29563e+01 1.16153e+00 1621 2012 11 9.86707e+00 1.30966e+00 1478 2012 12 7.07338e+00 9.98567e-01 1110 2013 1 5.34547e+00 1.17241e+00 1190 2013 2 3.32106e+00 8.77982e-01 937 2013 3 3.77491e+00 5.85164e-01 955 2013 4 6.40764e+00 2.42036e+00 1484 2013 5 1.09345e+01 1.58847e+00 1253 2013 6 1.55553e+01 1.74853e+00 1478 2013 7 2.14961e+01 1.92510e+00 1451 2013 8 1.78290e+01 2.07509e+00 1760 2013 9 1.55173e+01 1.27562e+00 1844 2013 10 1.39072e+01 1.77285e+00 2321 2013 11 9.42332e+00 1.20649e+00 1675 2013 12 5.31725e+00 1.16882e+00 958 2014 1 3.14165e+00 8.01218e-01 744 2014 2 1.60398e+00 6.02011e-01 525 2014 3 2.30453e+00 4.65573e-01 868 2014 4 4.86803e+00 8.43005e-01 966 2014 5 1.03536e+01 2.22201e+00 716 2014 6 1.55228e+01 1.58954e+00 1526 2014 7 1.65682e+01 1.64586e+00 1178 2014 8 1.85990e+01 1.51677e+00 2312 2014 9 1.69089e+01 1.19990e+00 1890 2014 10 1.44582e+01 1.29158e+00 1605 2014 11 9.69599e+00 1.29591e+00 1009 2014 12 6.74369e+00 6.70081e-01 1180 2015 1 4.32461e+00 1.16862e+00 1021 2015 2 2.65279e+00 4.06533e-01 122 2015 3 1.70811e+00 4.33282e-01 400 2015 4 4.99634e+00 2.10547e+00 1031 2015 5 1.11156e+01 1.30635e+00 650 2015 6 1.49597e+01 2.33632e+00 947 2015 7 1.92127e+01 1.99337e+00 2248 2015 8 1.86639e+01 1.83954e+00 2247 2015 9 1.86706e+01 1.42717e+00 1943 2015 10 1.35849e+01 1.49635e+00 1706 2015 11 1.05752e+01 1.01101e+00 1611 2015 12 8.34230e+00 8.70636e-01 996 2016 1 5.74888e+00 1.12462e+00 1161 2016 2 3.68844e+00 8.32637e-01 1006 2016 3 4.99435e+00 1.13812e+00 909 2016 4 6.50031e+00 1.42137e+00 1785 2016 5 9.60207e+00 1.89445e+00 909 2016 6 1.44457e+01 1.78968e+00 1381 2016 7 1.87362e+01 2.38705e+00 1559 2016 8 1.94133e+01 1.68761e+00 2510 2016 9 1.74969e+01 1.62336e+00 2016 2016 10 1.50689e+01 1.05195e+00 1756 2016 11 1.09153e+01 1.21210e+00 1653 2016 12 7.55361e+00 1.41262e+00 1693 2017 1 4.96012e+00 1.27652e+00 935 2017 2 4.58962e+00 8.55015e-01 1058 2017 3 3.72365e+00 5.93903e-01 1333 2017 4 5.51190e+00 1.41728e+00 581 2017 5 1.04911e+01 2.14364e+00 668 2017 6 1.40044e+01 2.50013e+00 520 2017 7 1.72579e+01 1.32083e+00 1228 2017 8 1.74657e+01 1.77064e+00 2182 2017 9 1.62384e+01 2.08247e+00 1146 2017 10 1.48201e+01 1.66200e+00 1515 2017 11 9.45338e+00 1.02549e+00 1865 2017 12 6.14741e+00 1.31837e+00 1285 2018 1 2.73601e+00 9.27004e-01 868 2018 2 3.18141e+00 9.06931e-01 774 2018 3 3.51408e+00 6.10582e-01 876 2018 4 4.78975e+00 1.39463e+00 1044 2018 5 1.11512e+01 3.31947e+00 347 2018 6 1.53723e+01 1.07795e+00 653 2018 7 1.86044e+01 2.03489e+00 1412 2018 8 2.02615e+01 1.77236e+00 1785 2018 9 1.89206e+01 1.84725e+00 1745 2018 10 1.36968e+01 2.08218e+00 1781 2018 11 9.68635e+00 1.64917e+00 1290 2018 12 5.88501e+00 1.20488e+00 1256 2019 1 4.36753e+00 1.41201e+00 1284 2019 2 2.83796e+00 3.62261e-01 893 2019 3 3.11629e+00 6.87332e-01 1226 2019 4 5.24299e+00 1.51081e+00 1005 2019 5 1.00474e+01 2.08484e+00 851 2019 6 1.38830e+01 1.75882e+00 813 2019 7 1.97807e+01 1.65678e+00 2105 2019 8 1.74702e+01 2.06025e+00 2259 2019 9 1.72896e+01 1.11770e+00 2916 2019 10 1.39319e+01 6.32017e-01 1471 2019 11 9.97163e+00 1.85210e+00 2156 2019 12 5.99082e+00 9.24159e-01 1835 2020 1 4.84342e+00 7.70264e-01 1616 2020 2 3.98401e+00 3.89759e-01 1862 2020 3 5.27691e+00 9.18951e-01 1894 2020 4 6.23635e+00 4.20794e-01 1654 2020 5 1.01441e+01 2.45488e+00 2194 2020 6 1.57405e+01 2.66918e+00 1921 2020 7 1.96570e+01 1.22944e+00 1706 2020 8 1.93194e+01 1.37420e+00 1230 2020 9 1.69273e+01 1.20180e+00 2745 2020 10 1.37802e+01 1.30148e+00 2693 2020 11 1.03291e+01 1.25273e+00 1872 2020 12 6.57710e+00 1.34290e+00 1818 2021 1 4.52131e+00 7.20725e-01 1544 2021 2 2.77417e+00 6.04558e-01 1212 2021 3 4.48146e+00 1.14827e+00 2302 2021 4 6.79488e+00 1.29389e+00 1774 2021 5 1.17056e+01 1.83794e+00 1546 2021 6 1.62061e+01 2.29059e+00 1800 2021 7 1.94594e+01 1.76058e+00 1507 2021 8 2.04619e+01 1.85098e+00 1636 2021 9 1.81300e+01 1.19416e+00 2249 2021 10 1.56329e+01 1.39558e+00 1932 2021 11 1.16823e+01 1.14012e+00 2509 2021 12 8.14876e+00 6.64724e-01 1574 2022 1 5.20666e+00 1.14277e+00 1712 2022 2 3.45788e+00 6.27816e-01 1817 2022 3 4.67417e+00 8.61224e-01 1880 2022 4 7.29127e+00 7.96182e-01 1110 2022 5 1.12349e+01 2.54042e+00 1623 2022 6 1.57259e+01 1.78144e+00 2250 2022 7 1.71111e+01 1.13987e+00 2101 2022 8 2.02972e+01 1.48903e+00 2330 2022 9 1.76873e+01 1.44931e+00 2789 2022 10 1.43971e+01 9.57303e-01 2383 2022 11 1.14039e+01 1.82997e+00 3392 2022 12 7.16567e+00 1.24919e+00 2168 2023 1 5.07990e+00 5.48490e-01 1004 2023 2 4.50887e+00 6.10430e-01 938 2023 3 4.98305e+00 9.55266e-01 1804 2023 4 7.91898e+00 1.78596e+00 1646 2023 5 1.25266e+01 1.55702e+00 3294 2023 6 1.67985e+01 2.27894e+00 1824 2023 7 2.01729e+01 1.63692e+00 2348 2023 8 1.78284e+01 1.10728e+00 2062 2023 9 1.89661e+01 1.49647e+00 2147 2023 10 1.56554e+01 1.72607e+00 1763 2023 11 1.04709e+01 1.40789e+00 2882 2023 12 7.50156e+00 6.88986e-01 2233 2024 1 5.63401e+00 7.58458e-01 1898 2024 2 3.76525e+00 5.16587e-01 2787 2024 3 5.13030e+00 7.89697e-01 1383 2024 4 5.28445e+00 1.36740e-01 64