YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.01705e+01 8.81964e-01 108 2000 3 2.22927e+01 9.29049e-01 396 2000 4 2.28898e+01 1.21856e+00 310 2000 5 2.68553e+01 2.23034e+00 267 2000 6 2.87447e+01 1.23785e+00 225 2000 7 2.90819e+01 4.50014e-01 199 2000 8 2.76009e+01 2.48449e+00 38 2000 9 2.92837e+01 1.02072e+00 230 2000 10 2.45042e+01 2.46205e+00 486 2000 11 2.23224e+01 1.35503e+00 240 2000 12 2.01270e+01 1.66882e+00 295 2001 1 1.58322e+01 7.99238e-01 32 2001 2 1.97369e+01 2.58579e+00 275 2001 3 1.91685e+01 1.75830e+00 235 2001 4 2.20957e+01 1.60479e+00 317 2001 5 2.45485e+01 2.51219e+00 475 2001 6 2.99786e+01 9.16281e-01 148 2001 7 2.78467e+01 1.12541e+00 235 2001 8 2.95332e+01 1.35291e+00 297 2001 9 2.80248e+01 1.96606e+00 334 2001 10 2.35851e+01 1.32667e+00 172 2001 11 2.10983e+01 1.02166e+00 478 2001 12 2.21758e+01 1.76644e+00 275 2002 1 1.91374e+01 2.78711e+00 329 2002 2 1.84639e+01 2.12996e+00 207 2002 3 2.08205e+01 2.34591e+00 326 2002 4 2.44685e+01 1.75916e+00 273 2002 5 2.66716e+01 1.77213e+00 380 2002 6 2.66795e+01 1.39622e+00 248 2002 7 2.89519e+01 1.70493e+00 1105 2002 8 2.87489e+01 9.22318e-01 1206 2002 9 2.84905e+01 1.40059e+00 1308 2002 10 2.73514e+01 1.45250e+00 2180 2002 11 2.25017e+01 2.32761e+00 1153 2002 12 1.72449e+01 1.17663e+00 669 2003 1 1.44824e+01 1.44991e+00 1022 2003 2 1.76703e+01 1.70765e+00 967 2003 3 2.32144e+01 1.29730e+00 865 2003 4 2.24763e+01 2.38429e+00 1275 2003 5 2.75474e+01 1.97260e+00 1731 2003 6 2.80522e+01 1.56418e+00 1078 2003 7 2.92795e+01 1.78123e+00 952 2003 8 2.86110e+01 1.21831e+00 1872 2003 9 2.80840e+01 1.14424e+00 1251 2003 10 2.57131e+01 1.09398e+00 1685 2003 11 2.28163e+01 1.58613e+00 2015 2003 12 1.63365e+01 1.48790e+00 917 2004 1 1.67063e+01 1.83580e+00 1321 2004 2 1.73876e+01 1.64480e+00 789 2004 3 2.00322e+01 1.47787e+00 1752 2004 4 2.15823e+01 2.01144e+00 1833 2004 5 2.60477e+01 1.98524e+00 2196 2004 6 2.98964e+01 1.04832e+00 2133 2004 7 2.89233e+01 1.97148e+00 1087 2004 8 2.93568e+01 1.82171e+00 1185 2004 9 2.75573e+01 1.72546e+00 1208 2004 10 2.56519e+01 1.68573e+00 1641 2004 11 2.22357e+01 2.02465e+00 1565 2004 12 1.76524e+01 2.51106e+00 704 2005 1 1.71856e+01 2.10643e+00 1573 2005 2 1.72073e+01 1.19192e+00 1442 2005 3 1.93689e+01 1.76663e+00 992 2005 4 2.18556e+01 1.37789e+00 1478 2005 5 2.49856e+01 1.78439e+00 1955 2005 6 2.82360e+01 1.62141e+00 1580 2005 7 2.94816e+01 1.69951e+00 1721 2005 8 3.07813e+01 1.68907e+00 1673 2005 9 2.85821e+01 1.21447e+00 1707 2005 10 2.49858e+01 3.24133e+00 1485 2005 11 2.08840e+01 1.58600e+00 1166 2005 12 1.72956e+01 1.68643e+00 932 2006 1 1.73678e+01 1.36706e+00 1298 2006 2 1.76901e+01 1.38064e+00 1441 2006 3 2.06424e+01 1.52466e+00 1907 2006 4 2.42569e+01 2.32519e+00 1989 2006 5 2.60782e+01 1.84801e+00 1948 2006 6 2.81366e+01 1.80751e+00 1622 2006 7 2.90587e+01 1.39580e+00 1282 2006 8 3.00208e+01 1.34111e+00 1866 2006 9 2.90871e+01 1.00432e+00 1956 2006 10 2.55011e+01 2.05062e+00 2088 2006 11 2.04990e+01 2.13853e+00 1213 2006 12 1.89705e+01 1.43147e+00 1143 2007 1 1.91417e+01 1.66301e+00 1002 2007 2 1.65464e+01 1.48113e+00 819 2007 3 1.97592e+01 1.55852e+00 1603 2007 4 2.25565e+01 1.82255e+00 1889 2007 5 2.46535e+01 1.32495e+00 2156 2007 6 2.78006e+01 1.75390e+00 1843 2007 7 3.03481e+01 1.69490e+00 1494 2007 8 3.04350e+01 1.05713e+00 1895 2007 9 2.88418e+01 1.62925e+00 1266 2007 10 2.70420e+01 1.04464e+00 1257 2007 11 2.08992e+01 1.68826e+00 1721 2007 12 2.11086e+01 1.28288e+00 1682 2008 1 1.74226e+01 1.92662e+00 1100 2008 2 1.95905e+01 1.38806e+00 1547 2008 3 1.92968e+01 1.48584e+00 1500 2008 4 2.34639e+01 1.80605e+00 1975 2008 5 2.60149e+01 1.66172e+00 2128 2008 6 2.86462e+01 2.04220e+00 1811 2008 7 2.88422e+01 1.27301e+00 1045 2008 8 2.97833e+01 1.43192e+00 1345 2008 9 2.80301e+01 1.36495e+00 1291 2008 10 2.54970e+01 1.87498e+00 1485 2008 11 1.92707e+01 2.34007e+00 1655 2008 12 1.86355e+01 1.38613e+00 1755 2009 1 1.78557e+01 2.20755e+00 1471 2009 2 1.64096e+01 1.92884e+00 1397 2009 3 1.98560e+01 2.39644e+00 1442 2009 4 2.27607e+01 1.13474e+00 1769 2009 5 2.68200e+01 1.52634e+00 1805 2009 6 2.91282e+01 1.55090e+00 1717 2009 7 2.97987e+01 1.24762e+00 1608 2009 8 2.96501e+01 1.35022e+00 1449 2009 9 2.90915e+01 1.25201e+00 1357 2009 10 2.68279e+01 2.89395e+00 1925 2009 11 2.23239e+01 2.18022e+00 1008 2009 12 1.90961e+01 1.94740e+00 895 2010 1 1.42877e+01 3.29852e+00 805 2010 2 1.44256e+01 1.66389e+00 764 2010 3 1.64417e+01 2.30022e+00 1431 2010 4 2.15954e+01 2.12279e+00 1543 2010 5 2.73976e+01 1.69778e+00 2151 2010 6 3.01294e+01 1.00424e+00 2057 2010 7 2.90041e+01 1.55047e+00 1556 2010 8 3.00657e+01 2.23457e+00 1128 2010 9 2.87236e+01 1.58640e+00 1376 2010 10 2.55691e+01 1.45676e+00 2340 2010 11 2.09638e+01 1.69940e+00 1756 2010 12 1.61716e+01 3.13671e+00 773 2011 1 1.44917e+01 1.40547e+00 1064 2011 2 1.81945e+01 2.28205e+00 1455 2011 3 2.11962e+01 2.01017e+00 1686 2011 4 2.52526e+01 1.70503e+00 2124 2011 5 2.68104e+01 1.38107e+00 2329 2011 6 2.91770e+01 2.06490e+00 1867 2011 7 2.95747e+01 1.76087e+00 1216 2011 8 2.94408e+01 1.66848e+00 1626 2011 9 2.87272e+01 1.22710e+00 1406 2011 10 2.45998e+01 2.28825e+00 1185 2011 11 2.11568e+01 1.08224e+00 1873 2011 12 1.92879e+01 1.28586e+00 1741 2012 1 1.71402e+01 1.89155e+00 1211 2012 2 1.87197e+01 2.33404e+00 973 2012 3 2.26107e+01 1.50849e+00 1953 2012 4 2.35816e+01 1.60681e+00 1635 2012 5 2.69146e+01 1.69152e+00 1964 2012 6 2.82796e+01 1.51007e+00 1386 2012 7 2.95579e+01 1.59300e+00 1734 2012 8 3.00054e+01 1.72527e+00 1169 2012 9 2.86572e+01 1.40995e+00 1503 2012 10 2.57129e+01 2.15179e+00 1322 2012 11 1.94674e+01 8.43170e-01 1352 2012 12 1.92837e+01 1.71473e+00 1154 2013 1 1.95544e+01 1.62247e+00 1334 2013 2 1.88886e+01 1.63455e+00 1502 2013 3 1.81519e+01 1.75580e+00 1360 2013 4 2.36479e+01 2.38682e+00 1318 2013 5 2.60710e+01 1.47917e+00 1961 2013 6 2.83053e+01 2.35640e+00 1727 2013 7 2.85279e+01 1.43681e+00 1141 2013 8 2.97878e+01 1.27760e+00 1219 2013 9 2.87280e+01 1.52236e+00 1566 2013 10 2.61211e+01 1.86524e+00 1775 2013 11 2.19036e+01 1.91383e+00 832 2013 12 2.02713e+01 1.76229e+00 1440 2014 1 1.59238e+01 1.42866e+00 933 2014 2 1.86922e+01 1.13315e+00 1019 2014 3 2.02223e+01 9.53728e-01 1392 2014 4 2.29221e+01 2.06820e+00 1331 2014 5 2.52829e+01 1.56353e+00 1664 2014 6 2.89716e+01 1.19406e+00 1405 2014 7 2.99778e+01 1.62052e+00 1598 2014 8 3.06818e+01 1.34730e+00 1849 2014 9 2.94704e+01 1.27607e+00 1176 2014 10 2.61080e+01 1.94311e+00 1780 2014 11 1.99037e+01 1.60627e+00 1398 2014 12 1.83672e+01 1.57567e+00 1150 2015 1 1.78128e+01 1.85147e+00 1105 2015 2 1.64680e+01 1.29951e+00 1227 2015 3 2.27826e+01 2.20184e+00 1858 2015 4 2.52042e+01 2.24532e+00 1558 2015 5 2.69498e+01 1.80608e+00 2191 2015 6 2.90537e+01 1.80338e+00 1214 2015 7 2.98165e+01 1.32891e+00 1086 2015 8 2.98386e+01 1.68341e+00 1177 2015 9 2.93550e+01 1.35185e+00 879 2015 10 2.62817e+01 1.88864e+00 1274 2015 11 2.44396e+01 2.59836e+00 1775 2015 12 2.17018e+01 1.89160e+00 1323 2016 1 1.83233e+01 2.49239e+00 790 2016 2 1.69201e+01 2.01316e+00 1101 2016 3 2.00506e+01 2.50359e+00 782 2016 4 2.35034e+01 2.03205e+00 1746 2016 5 2.64687e+01 2.03282e+00 1641 2016 6 2.95723e+01 1.55513e+00 1664 2016 7 3.10853e+01 1.16516e+00 1514 2016 8 3.02184e+01 1.40354e+00 1741 2016 9 2.97606e+01 1.39622e+00 1791 2016 10 2.57285e+01 2.01427e+00 1728 2016 11 2.13991e+01 1.80298e+00 1490 2016 12 2.11742e+01 1.27902e+00 2059 2017 1 1.85932e+01 1.90851e+00 1423 2017 2 2.01231e+01 1.49728e+00 1758 2017 3 2.05647e+01 1.97072e+00 2097 2017 4 2.34989e+01 1.64396e+00 1621 2017 5 2.61559e+01 1.67069e+00 1739 2017 6 2.88679e+01 1.92458e+00 891 2017 7 3.04813e+01 1.38891e+00 1419 2017 8 3.08121e+01 1.73304e+00 1519 2017 9 2.89065e+01 1.44066e+00 1644 2017 10 2.56042e+01 2.47976e+00 1207 2017 11 2.17371e+01 1.23942e+00 2118 2017 12 2.03197e+01 1.91654e+00 1776 2018 1 1.53383e+01 1.29999e+00 874 2018 2 2.20664e+01 2.79390e+00 1637 2018 3 2.02535e+01 1.91218e+00 1640 2018 4 2.39474e+01 1.58695e+00 1488 2018 5 2.43220e+01 1.36069e+00 834 2018 6 2.92409e+01 1.84213e+00 1854 2018 7 2.98212e+01 1.51227e+00 1145 2018 8 2.98978e+01 1.46986e+00 1499 2018 9 2.99727e+01 1.84379e+00 1835 2018 10 2.74844e+01 1.77478e+00 1900 2018 11 2.35968e+01 2.08916e+00 1306 2018 12 1.95012e+01 2.09143e+00 1316 2019 1 1.86740e+01 2.18325e+00 1524 2019 2 2.08556e+01 2.49834e+00 1443 2019 3 2.15936e+01 1.65009e+00 1757 2019 4 2.42200e+01 1.48439e+00 1886 2019 5 2.73585e+01 1.59799e+00 1922 2019 6 3.02222e+01 1.23598e+00 1505 2019 7 2.98886e+01 1.35408e+00 1568 2019 8 3.02138e+01 1.17261e+00 1161 2019 9 2.89209e+01 1.87587e+00 1888 2019 10 2.75559e+01 1.16598e+00 2135 2019 11 2.26017e+01 2.81195e+00 1478 2019 12 2.02017e+01 1.61874e+00 1140 2020 1 1.92038e+01 1.99028e+00 1925 2020 2 1.96013e+01 2.55499e+00 1466 2020 3 2.36408e+01 3.26826e+00 2111 2020 4 2.53638e+01 1.44045e+00 1466 2020 5 2.62490e+01 1.89092e+00 2041 2020 6 3.05412e+01 1.98622e+00 1651 2020 7 3.02680e+01 1.47753e+00 1863 2020 8 3.12366e+01 1.54065e+00 1150 2020 9 2.95146e+01 2.03760e+00 1333 2020 10 2.78183e+01 1.58869e+00 1657 2020 11 2.33494e+01 1.98949e+00 1948 2020 12 1.77133e+01 1.74790e+00 1720 2021 1 1.81187e+01 1.55809e+00 1654 2021 2 1.99930e+01 2.57351e+00 1491 2021 3 2.14052e+01 2.00600e+00 1810 2021 4 2.42164e+01 1.98617e+00 2020 2021 5 2.71192e+01 2.17094e+00 2007 2021 6 2.88155e+01 1.49601e+00 1119 2021 7 2.97826e+01 1.92007e+00 1381 2021 8 3.07627e+01 1.90095e+00 1302 2021 9 3.00391e+01 1.40762e+00 1619 2021 10 2.78301e+01 1.74708e+00 2080 2021 11 2.09979e+01 1.48826e+00 1989 2021 12 2.12786e+01 1.63849e+00 2571 2022 1 1.89288e+01 2.75511e+00 1800 2022 2 1.89083e+01 2.61875e+00 1732 2022 3 2.25271e+01 1.17990e+00 2452 2022 4 2.45876e+01 1.43491e+00 1270 2022 5 2.74256e+01 1.71003e+00 1949 2022 6 2.95008e+01 1.85376e+00 1758 2022 7 3.08342e+01 1.28685e+00 2069 2022 8 3.06924e+01 1.61518e+00 1348 2022 9 3.00051e+01 1.92183e+00 1651 2022 10 2.45928e+01 2.09570e+00 1871 2022 11 2.41984e+01 2.00451e+00 1638 2022 12 2.12388e+01 2.87757e+00 1708 2023 1 1.85227e+01 1.63304e+00 1975 2023 2 2.14533e+01 1.72828e+00 2013 2023 3 2.34852e+01 2.26995e+00 2096 2023 4 2.56569e+01 1.54122e+00 1602 2023 5 2.76206e+01 2.27395e+00 2755 2023 6 2.99679e+01 2.49215e+00 2132 2023 7 3.17202e+01 1.23414e+00 1905 2023 8 3.20766e+01 2.32290e+00 2274 2023 9 3.06689e+01 2.13092e+00 2188 2023 10 2.52894e+01 2.52117e+00 1317 2023 11 2.22832e+01 1.93295e+00 1434 2023 12 1.90711e+01 1.94309e+00 803 2024 1 1.76855e+01 1.17173e+00 724 2024 2 1.83952e+01 1.13003e+00 1992 2024 3 2.29783e+01 1.05229e+00 1259 2024 4 2.27253e+01 1.41305e+00 105