YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.04620e+01 6.44946e-01 128 2000 3 2.28932e+01 7.25788e-01 419 2000 4 2.36651e+01 6.93318e-01 438 2000 5 2.74742e+01 1.17732e+00 326 2000 6 2.74085e+01 1.41249e+00 312 2000 7 2.97142e+01 9.04128e-01 172 2000 8 2.88658e+01 1.93175e-01 64 2000 9 2.88309e+01 1.07681e+00 217 2000 10 2.35319e+01 1.16095e+00 342 2000 11 2.30682e+01 8.79633e-01 374 2000 12 2.09650e+01 1.25668e+00 128 2001 1 nan nan 0 2001 2 1.88677e+01 2.02898e+00 130 2001 3 2.01195e+01 6.88717e-01 348 2001 4 2.25360e+01 1.30565e+00 225 2001 5 2.34671e+01 1.33502e+00 424 2001 6 2.96163e+01 1.28137e+00 67 2001 7 2.82535e+01 4.93847e-01 180 2001 8 2.85283e+01 8.07923e-01 117 2001 9 2.64641e+01 5.64705e-01 88 2001 10 nan nan 0 2001 11 2.17618e+01 6.90372e-01 383 2001 12 2.25725e+01 8.22045e-01 405 2002 1 2.05605e+01 2.03146e+00 256 2002 2 1.99272e+01 1.99506e+00 253 2002 3 2.00985e+01 1.41839e+00 165 2002 4 2.51764e+01 1.71804e+00 352 2002 5 2.66620e+01 1.64125e+00 379 2002 6 2.79279e+01 5.09139e-01 251 2002 7 2.87956e+01 1.22426e+00 1007 2002 8 2.85972e+01 1.07027e+00 1071 2002 9 2.84635e+01 7.28879e-01 872 2002 10 2.72952e+01 1.28666e+00 1829 2002 11 2.37709e+01 1.89313e+00 1059 2002 12 1.89942e+01 8.26687e-01 470 2003 1 1.66443e+01 5.78446e-01 507 2003 2 1.91890e+01 1.62780e+00 1254 2003 3 2.38418e+01 1.36634e+00 735 2003 4 2.29614e+01 2.02973e+00 1334 2003 5 2.78798e+01 1.34579e+00 1507 2003 6 2.78545e+01 1.65998e+00 1056 2003 7 2.81554e+01 1.82846e+00 932 2003 8 2.80733e+01 1.03078e+00 1429 2003 9 2.80097e+01 8.84486e-01 1062 2003 10 2.62393e+01 1.30808e+00 1456 2003 11 2.34276e+01 1.20234e+00 1595 2003 12 nan nan 0 2004 1 1.75972e+01 1.14878e+00 1444 2004 2 1.86381e+01 1.34477e+00 726 2004 3 2.10256e+01 1.20220e+00 1599 2004 4 2.24569e+01 1.62005e+00 1475 2004 5 2.59784e+01 1.36626e+00 2128 2004 6 2.91675e+01 1.37089e+00 1757 2004 7 2.89944e+01 1.47079e+00 1420 2004 8 2.84802e+01 1.00322e+00 1006 2004 9 2.75735e+01 1.52689e+00 1140 2004 10 2.59103e+01 1.40272e+00 1775 2004 11 2.27169e+01 1.54207e+00 1406 2004 12 2.03303e+01 1.13172e+00 658 2005 1 1.80947e+01 1.48642e+00 1198 2005 2 1.79793e+01 1.18113e+00 1175 2005 3 2.02298e+01 2.07730e+00 921 2005 4 2.27093e+01 1.01405e+00 1532 2005 5 2.53360e+01 1.94387e+00 1534 2005 6 2.84940e+01 1.30262e+00 866 2005 7 2.88494e+01 1.34679e+00 1705 2005 8 2.98131e+01 1.41709e+00 1195 2005 9 2.82067e+01 1.02221e+00 1300 2005 10 2.67325e+01 1.14822e+00 590 2005 11 2.22630e+01 1.02898e+00 1164 2005 12 1.97717e+01 1.24139e+00 418 2006 1 1.79738e+01 1.10724e+00 1325 2006 2 1.86648e+01 1.33954e+00 1236 2006 3 2.12566e+01 1.53874e+00 1747 2006 4 2.39284e+01 1.93735e+00 1960 2006 5 2.62852e+01 1.34430e+00 1371 2006 6 2.84034e+01 1.33195e+00 1332 2006 7 2.87743e+01 1.30374e+00 1152 2006 8 2.97016e+01 1.16333e+00 1377 2006 9 2.86682e+01 8.67327e-01 1424 2006 10 2.58654e+01 1.70701e+00 1645 2006 11 2.19866e+01 6.22698e-01 437 2006 12 1.96540e+01 8.23685e-01 984 2007 1 1.97983e+01 1.53706e+00 1156 2007 2 1.72260e+01 9.91266e-01 643 2007 3 2.04641e+01 9.87435e-01 1663 2007 4 2.27647e+01 1.63136e+00 1510 2007 5 2.48584e+01 1.25643e+00 1964 2007 6 2.77396e+01 1.46433e+00 1511 2007 7 2.93870e+01 1.66223e+00 1181 2007 8 3.00077e+01 1.09706e+00 1365 2007 9 2.83970e+01 1.43827e+00 1384 2007 10 2.67702e+01 1.13491e+00 1262 2007 11 2.16188e+01 1.39723e+00 1553 2007 12 2.13405e+01 1.35250e+00 1130 2008 1 1.79398e+01 1.57682e+00 1155 2008 2 2.02828e+01 1.15732e+00 1296 2008 3 2.04953e+01 1.12072e+00 1430 2008 4 2.33497e+01 1.45051e+00 1522 2008 5 2.63457e+01 1.46879e+00 1972 2008 6 2.88017e+01 1.00015e+00 1301 2008 7 2.89984e+01 8.83611e-01 1132 2008 8 2.95636e+01 1.15891e+00 1139 2008 9 2.79907e+01 1.03338e+00 1039 2008 10 2.52632e+01 1.37751e+00 1279 2008 11 2.14101e+01 7.38154e-01 896 2008 12 1.91375e+01 8.21435e-01 1312 2009 1 1.88450e+01 1.74614e+00 1040 2009 2 1.81979e+01 1.21987e+00 804 2009 3 2.01330e+01 1.83328e+00 1382 2009 4 2.36513e+01 1.09500e+00 1678 2009 5 2.69933e+01 1.16837e+00 1238 2009 6 2.88373e+01 1.16879e+00 1308 2009 7 2.91224e+01 1.16314e+00 1407 2009 8 2.91634e+01 1.43317e+00 1229 2009 9 2.88339e+01 6.63002e-01 1145 2009 10 2.72552e+01 2.44164e+00 1670 2009 11 2.33351e+01 2.37267e+00 963 2009 12 2.04092e+01 9.76789e-01 540 2010 1 1.75519e+01 8.99892e-01 280 2010 2 1.69755e+01 7.32877e-01 366 2010 3 1.84618e+01 1.57417e+00 955 2010 4 2.23879e+01 1.75135e+00 1171 2010 5 2.72669e+01 1.59180e+00 1924 2010 6 3.02167e+01 9.46627e-01 1619 2010 7 2.90141e+01 1.42403e+00 1136 2010 8 2.98309e+01 1.22838e+00 945 2010 9 2.87335e+01 1.01935e+00 1310 2010 10 2.50853e+01 1.11904e+00 2036 2010 11 2.15417e+01 1.45399e+00 1230 2010 12 2.28351e+01 7.29720e-01 192 2011 1 1.69150e+01 8.59350e-01 539 2011 2 1.91193e+01 1.91295e+00 1420 2011 3 2.14829e+01 1.47889e+00 1783 2011 4 2.55838e+01 1.42530e+00 1707 2011 5 2.68863e+01 1.24139e+00 1862 2011 6 2.85713e+01 1.51989e+00 1566 2011 7 2.93676e+01 1.20486e+00 1001 2011 8 2.96549e+01 1.11034e+00 1392 2011 9 2.85455e+01 1.01867e+00 1145 2011 10 2.56781e+01 2.16216e+00 736 2011 11 2.17653e+01 1.14929e+00 1387 2011 12 2.04181e+01 6.20344e-01 1159 2012 1 1.80812e+01 1.35277e+00 1387 2012 2 1.95066e+01 1.78902e+00 836 2012 3 2.25624e+01 1.27187e+00 2071 2012 4 2.39094e+01 1.48669e+00 1615 2012 5 2.74137e+01 1.60596e+00 1407 2012 6 2.81846e+01 1.14757e+00 1012 2012 7 2.92898e+01 1.11816e+00 1164 2012 8 2.93917e+01 1.04434e+00 779 2012 9 2.84635e+01 1.00150e+00 1106 2012 10 2.58791e+01 1.47855e+00 1174 2012 11 2.05614e+01 5.22695e-01 544 2012 12 2.00904e+01 1.25197e+00 882 2013 1 2.04789e+01 1.34478e+00 827 2013 2 1.92626e+01 1.47411e+00 1131 2013 3 1.90881e+01 1.34279e+00 999 2013 4 2.45051e+01 2.27822e+00 1226 2013 5 2.57707e+01 1.45244e+00 1913 2013 6 2.84045e+01 1.45614e+00 1162 2013 7 2.87423e+01 1.15241e+00 1268 2013 8 2.94315e+01 9.91276e-01 1230 2013 9 2.85364e+01 1.24391e+00 1405 2013 10 2.63316e+01 1.68692e+00 1275 2013 11 2.26796e+01 1.05738e+00 893 2013 12 2.10878e+01 1.07917e+00 1346 2014 1 1.70537e+01 8.78140e-01 773 2014 2 1.97723e+01 1.05185e+00 1126 2014 3 2.16087e+01 7.03857e-01 1044 2014 4 2.40925e+01 1.86680e+00 1034 2014 5 2.61661e+01 1.13613e+00 1467 2014 6 2.82764e+01 1.09200e+00 1009 2014 7 2.93161e+01 1.74605e+00 1533 2014 8 2.99829e+01 7.64075e-01 1502 2014 9 2.92276e+01 1.18057e+00 982 2014 10 2.61003e+01 1.67378e+00 1420 2014 11 2.14591e+01 1.44723e+00 641 2014 12 1.92268e+01 1.09131e+00 769 2015 1 1.84788e+01 1.03404e+00 1211 2015 2 1.74455e+01 7.17171e-01 1170 2015 3 2.30892e+01 1.67481e+00 1330 2015 4 2.50244e+01 1.67760e+00 1141 2015 5 2.69098e+01 1.33864e+00 1602 2015 6 2.95291e+01 1.49828e+00 976 2015 7 2.97390e+01 9.64350e-01 1180 2015 8 2.93475e+01 1.25924e+00 960 2015 9 2.81184e+01 1.34360e+00 706 2015 10 2.61107e+01 2.08258e+00 1275 2015 11 2.50738e+01 2.30955e+00 1354 2015 12 2.20846e+01 1.08934e+00 1170 2016 1 1.88923e+01 2.15351e+00 313 2016 2 1.79380e+01 1.40341e+00 1047 2016 3 2.11124e+01 2.01068e+00 860 2016 4 2.42905e+01 1.17775e+00 1504 2016 5 2.67623e+01 1.41671e+00 1735 2016 6 2.78219e+01 2.16884e+00 1435 2016 7 3.00051e+01 1.27609e+00 1358 2016 8 2.98234e+01 1.12171e+00 1488 2016 9 2.83956e+01 1.30377e+00 1451 2016 10 2.63905e+01 1.61523e+00 1299 2016 11 2.22567e+01 1.30461e+00 1381 2016 12 2.15126e+01 8.41054e-01 1714 2017 1 1.96860e+01 1.40830e+00 1381 2017 2 2.08537e+01 1.12826e+00 1923 2017 3 2.12742e+01 1.40645e+00 1773 2017 4 2.39885e+01 1.26930e+00 1311 2017 5 2.61599e+01 1.45291e+00 1804 2017 6 2.74644e+01 1.62030e+00 838 2017 7 2.97766e+01 9.79952e-01 1425 2017 8 2.96605e+01 1.13954e+00 1248 2017 9 2.81177e+01 1.03387e+00 1435 2017 10 2.72302e+01 1.43763e+00 900 2017 11 2.25469e+01 9.58806e-01 1371 2017 12 2.08730e+01 1.58424e+00 1620 2018 1 1.73311e+01 1.13924e+00 617 2018 2 2.20351e+01 2.38314e+00 1657 2018 3 2.06039e+01 1.49054e+00 1697 2018 4 2.43098e+01 9.93877e-01 1287 2018 5 2.49283e+01 1.24271e+00 1080 2018 6 2.81957e+01 1.59891e+00 1359 2018 7 2.94497e+01 1.07764e+00 1180 2018 8 2.91728e+01 7.73884e-01 1245 2018 9 2.92814e+01 9.23254e-01 1452 2018 10 2.74925e+01 1.76858e+00 1563 2018 11 2.41678e+01 1.77739e+00 1385 2018 12 1.94073e+01 1.30265e+00 934 2019 1 1.93060e+01 1.69769e+00 1373 2019 2 2.12099e+01 2.17030e+00 1395 2019 3 2.23461e+01 1.23936e+00 1411 2019 4 2.45639e+01 1.35365e+00 1521 2019 5 2.76330e+01 1.01237e+00 1555 2019 6 2.97964e+01 1.00445e+00 1190 2019 7 2.92176e+01 1.45579e+00 1055 2019 8 2.90654e+01 1.05959e+00 767 2019 9 2.86000e+01 1.31137e+00 1570 2019 10 2.72010e+01 5.85228e-01 1153 2019 11 2.26654e+01 2.56970e+00 990 2019 12 2.01378e+01 1.07546e+00 1032 2020 1 2.02712e+01 1.50749e+00 1327 2020 2 1.98674e+01 1.45420e+00 1212 2020 3 2.22248e+01 2.13480e+00 1353 2020 4 2.55415e+01 8.37079e-01 1154 2020 5 2.58628e+01 1.04830e+00 1317 2020 6 2.91835e+01 1.03718e+00 980 2020 7 3.00278e+01 1.11087e+00 1164 2020 8 2.98462e+01 9.89275e-01 726 2020 9 2.90323e+01 1.56340e+00 1110 2020 10 2.71376e+01 7.11034e-01 755 2020 11 2.31437e+01 1.54833e+00 1384 2020 12 1.93883e+01 1.36636e+00 978 2021 1 1.86935e+01 1.33832e+00 1038 2021 2 2.03810e+01 2.50939e+00 1213 2021 3 2.17849e+01 1.33511e+00 1302 2021 4 2.44109e+01 1.45180e+00 1530 2021 5 2.67582e+01 1.38378e+00 1575 2021 6 2.79280e+01 1.39074e+00 347 2021 7 2.88606e+01 1.48630e+00 1303 2021 8 2.92770e+01 9.86879e-01 718 2021 9 2.88864e+01 1.05404e+00 840 2021 10 2.76973e+01 9.04895e-01 1301 2021 11 2.19181e+01 1.48909e+00 1013 2021 12 2.15062e+01 1.22526e+00 1381 2022 1 1.93885e+01 1.82406e+00 1130 2022 2 1.98400e+01 1.94742e+00 900 2022 3 2.30384e+01 1.06286e+00 1606 2022 4 2.42275e+01 1.29244e+00 1100 2022 5 2.74660e+01 1.28177e+00 1292 2022 6 2.85816e+01 1.21545e+00 1240 2022 7 3.03965e+01 9.74729e-01 1470 2022 8 3.07236e+01 1.61790e+00 1773 2022 9 3.03992e+01 2.22362e+00 1584 2022 10 2.54799e+01 2.21126e+00 2309 2022 11 2.46728e+01 1.79981e+00 2014 2022 12 2.17949e+01 2.78691e+00 2187 2023 1 1.94707e+01 1.57942e+00 3027 2023 2 2.24865e+01 1.69451e+00 3086 2023 3 2.41774e+01 1.74627e+00 3326 2023 4 2.63035e+01 1.24694e+00 2331 2023 5 2.84517e+01 1.67609e+00 3239 2023 6 2.95733e+01 1.55646e+00 2442 2023 7 3.19890e+01 1.13072e+00 1770 2023 8 3.11866e+01 1.58228e+00 1958 2023 9 3.03416e+01 1.52774e+00 1816 2023 10 2.58551e+01 2.02359e+00 2493 2023 11 2.33152e+01 1.42364e+00 2217 2023 12 1.89652e+01 1.60085e+00 895 2024 1 1.90734e+01 1.32306e+00 1228 2024 2 1.93610e+01 1.35908e+00 2744 2024 3 2.42368e+01 1.20907e+00 1734 2024 4 2.44347e+01 8.68426e-01 156