YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 nan nan 0 2000 3 5.25136e+00 1.28848e+00 250 2000 4 8.62460e+00 2.31738e+00 410 2000 5 1.46213e+01 2.20992e+00 477 2000 6 2.07210e+01 1.76747e+00 718 2000 7 2.29041e+01 5.80426e-01 1107 2000 8 2.31040e+01 8.95623e-01 691 2000 9 2.06612e+01 2.82759e+00 1513 2000 10 1.42343e+01 1.28040e+00 730 2000 11 1.02416e+01 3.46753e+00 540 2000 12 2.04250e+00 8.64109e-01 224 2001 1 nan nan 0 2001 2 1.08036e-01 3.53261e-01 28 2001 3 1.95715e+00 1.09453e+00 297 2001 4 9.31373e+00 2.45131e+00 557 2001 5 1.64133e+01 9.39754e-01 502 2001 6 1.88778e+01 2.16282e+00 446 2001 7 2.38287e+01 1.04161e+00 1469 2001 8 2.47982e+01 1.44425e+00 1629 2001 9 2.08310e+01 2.76800e+00 1767 2001 10 1.34267e+01 2.09417e+00 591 2001 11 9.56469e+00 6.78990e-01 688 2001 12 6.25364e+00 1.74269e+00 544 2002 1 5.24406e-01 2.81882e-01 202 2002 2 1.30906e+00 3.12469e-01 425 2002 3 8.92015e-01 7.56640e-01 134 2002 4 8.54108e+00 2.93251e+00 300 2002 5 1.17942e+01 1.57349e+00 918 2002 6 2.06748e+01 2.74018e+00 1130 2002 7 2.54614e+01 9.94763e-01 2807 2002 8 2.49484e+01 9.73727e-01 3177 2002 9 2.31770e+01 1.52098e+00 4346 2002 10 1.68631e+01 3.57103e+00 2243 2002 11 6.12673e+00 1.53144e+00 906 2002 12 1.18912e+00 9.59434e-01 478 2003 1 6.99184e-01 1.30940e-01 49 2003 2 nan nan 0 2003 3 1.25602e+00 8.60188e-01 236 2003 4 8.45387e+00 1.62924e+00 810 2003 5 1.34977e+01 1.20637e+00 1401 2003 6 1.98760e+01 3.07849e+00 2376 2003 7 2.35149e+01 7.20537e-01 3680 2003 8 2.46421e+01 9.75152e-01 3247 2003 9 2.15867e+01 1.28667e+00 4239 2003 10 1.36870e+01 1.37336e+00 2134 2003 11 8.74301e+00 1.47561e+00 1251 2003 12 3.11243e+00 1.30271e+00 446 2004 1 1.44333e+00 2.94628e-01 3 2004 2 7.05619e-01 9.40614e-02 97 2004 3 2.08121e+00 5.36192e-01 261 2004 4 7.87539e+00 2.45511e+00 775 2004 5 1.58874e+01 2.39151e+00 581 2004 6 2.04489e+01 1.21055e+00 2624 2004 7 2.24526e+01 1.30458e+00 2215 2004 8 2.25046e+01 1.04572e+00 2952 2004 9 2.19347e+01 1.17986e+00 4035 2004 10 1.69589e+01 2.25042e+00 1736 2004 11 9.86565e+00 1.77412e+00 1620 2004 12 3.95846e+00 1.73852e+00 282 2005 1 -2.61538e-01 1.93613e-01 39 2005 2 5.57692e-01 1.83034e-01 91 2005 3 7.59580e-01 5.53046e-01 369 2005 4 7.95431e+00 2.04086e+00 649 2005 5 1.29150e+01 3.00266e+00 1648 2005 6 2.21970e+01 2.36481e+00 2667 2005 7 2.57814e+01 1.43978e+00 3183 2005 8 2.62146e+01 1.21683e+00 3690 2005 9 2.27326e+01 1.09334e+00 4699 2005 10 1.64858e+01 3.06613e+00 2233 2005 11 8.36702e+00 2.38412e+00 937 2005 12 9.33250e-01 1.12686e-01 20 2006 1 1.53868e+00 5.71570e-01 481 2006 2 8.81892e-01 9.00975e-01 111 2006 3 2.41597e+00 7.87531e-01 725 2006 4 1.08023e+01 2.76657e+00 1498 2006 5 1.52643e+01 2.46271e+00 1496 2006 6 2.17820e+01 1.40685e+00 2626 2006 7 2.50457e+01 1.45103e+00 3904 2006 8 2.60446e+01 1.53811e+00 3102 2006 9 1.96861e+01 1.57236e+00 2020 2006 10 1.34947e+01 2.93755e+00 1873 2006 11 7.17227e+00 7.23552e-01 990 2006 12 3.30536e+00 1.16689e+00 373 2007 1 3.74843e+00 9.03842e-01 428 2007 2 nan nan 0 2007 3 1.40301e+00 1.12841e+00 307 2007 4 6.17114e+00 2.41879e+00 757 2007 5 1.52052e+01 2.16879e+00 1995 2007 6 2.25036e+01 1.56307e+00 2864 2007 7 2.37469e+01 8.20581e-01 3484 2007 8 2.51397e+01 1.33573e+00 3389 2007 9 2.22268e+01 1.64296e+00 3811 2007 10 1.85907e+01 3.02421e+00 2917 2007 11 9.74055e+00 3.07000e+00 1413 2007 12 1.61431e+00 1.31106e+00 423 2008 1 1.64653e+00 2.92335e-01 36 2008 2 -3.84000e-01 3.04670e-01 5 2008 3 1.65120e+00 4.22595e-01 414 2008 4 8.67911e+00 3.90137e+00 1067 2008 5 1.38421e+01 1.50704e+00 1306 2008 6 2.07378e+01 1.96937e+00 2282 2008 7 2.41710e+01 1.28048e+00 3785 2008 8 2.40140e+01 1.24815e+00 3494 2008 9 2.13956e+01 1.39694e+00 3051 2008 10 1.55320e+01 2.25812e+00 2866 2008 11 5.15142e+00 2.18080e+00 644 2008 12 6.10192e-01 1.75409e-01 26 2009 1 -4.80429e-01 2.48433e-01 35 2009 2 4.36250e-01 1.54118e-01 68 2009 3 2.81323e+00 1.68605e+00 736 2009 4 6.44805e+00 8.79426e-01 882 2009 5 1.49749e+01 2.35233e+00 1561 2009 6 2.13695e+01 3.19034e+00 1916 2009 7 2.20987e+01 8.78438e-01 2550 2009 8 2.41337e+01 1.10307e+00 2755 2009 9 2.14929e+01 6.11298e-01 2544 2009 10 1.30846e+01 2.81527e+00 1113 2009 11 9.63528e+00 8.64466e-01 1295 2009 12 4.76530e+00 1.92691e+00 450 2010 1 nan nan 0 2010 2 4.03286e-01 3.63037e-01 35 2010 3 3.55288e+00 1.33790e+00 417 2010 4 9.33371e+00 1.50531e+00 1142 2010 5 1.77552e+01 3.71944e+00 1785 2010 6 2.28041e+01 1.62210e+00 2288 2010 7 2.62967e+01 1.19681e+00 4066 2010 8 2.56499e+01 1.13898e+00 4006 2010 9 2.13161e+01 2.49524e+00 2117 2010 10 1.45560e+01 1.28737e+00 2399 2010 11 9.37272e+00 1.43231e+00 1276 2010 12 1.57986e+00 1.11248e-01 71 2011 1 -2.70000e-01 0.00000e+00 2 2011 2 4.99930e-01 5.86857e-02 71 2011 3 2.24530e+00 8.21444e-01 384 2011 4 6.26944e+00 2.70422e+00 346 2011 5 1.39523e+01 3.33025e+00 805 2011 6 2.11431e+01 1.45997e+00 2327 2011 7 2.63778e+01 1.60963e+00 3307 2011 8 2.51126e+01 1.07364e+00 3097 2011 9 2.17432e+01 2.59989e+00 1665 2011 10 1.45727e+01 2.03463e+00 2106 2011 11 9.41463e+00 1.60460e+00 1183 2011 12 4.35472e+00 1.13213e+00 1092 2012 1 1.67032e+00 6.65961e-01 263 2012 2 9.47158e-01 5.81881e-01 607 2012 3 6.34342e+00 3.61501e+00 571 2012 4 9.81438e+00 9.23220e-01 1410 2012 5 1.76195e+01 2.59774e+00 2591 2012 6 2.24794e+01 1.99865e+00 3513 2012 7 2.63544e+01 8.74961e-01 4318 2012 8 2.49530e+01 1.38372e+00 4309 2012 9 2.19957e+01 2.35948e+00 3291 2012 10 1.42747e+01 1.50003e+00 1513 2012 11 6.58711e+00 1.12322e+00 1113 2012 12 3.97795e+00 1.36820e+00 988 2013 1 5.26527e-01 4.41981e-01 262 2013 2 1.36625e-01 1.96057e-01 400 2013 3 1.32219e+00 6.39059e-01 529 2013 4 6.42813e+00 2.00641e+00 1099 2013 5 1.49435e+01 1.81569e+00 1328 2013 6 2.05576e+01 1.88068e+00 2199 2013 7 2.53115e+01 1.54617e+00 2564 2013 8 2.36035e+01 9.50894e-01 3588 2013 9 2.17802e+01 2.38914e+00 2929 2013 10 1.65845e+01 3.39224e+00 3090 2013 11 6.31523e+00 2.28052e+00 1287 2013 12 9.00909e-01 6.00542e-01 99 2014 1 1.98131e-01 5.99085e-02 107 2014 2 3.13077e-01 5.79816e-01 13 2014 3 4.54365e-01 4.26340e-01 189 2014 4 6.94119e+00 2.17953e+00 733 2014 5 1.55113e+01 2.64476e+00 1648 2014 6 2.11596e+01 1.68425e+00 1579 2014 7 2.36184e+01 9.63725e-01 2399 2014 8 2.32482e+01 8.06129e-01 2896 2014 9 2.17796e+01 2.90071e+00 3035 2014 10 1.42696e+01 1.67190e+00 1784 2014 11 7.34311e+00 2.95249e+00 739 2014 12 1.88227e+00 7.71210e-01 540 2015 1 8.45852e-01 1.96255e-01 88 2015 2 nan nan 0 2015 3 4.69905e-01 3.32156e-01 264 2015 4 7.21688e+00 1.77467e+00 1015 2015 5 1.54442e+01 1.75703e+00 1308 2015 6 1.85333e+01 1.87539e+00 1013 2015 7 2.32279e+01 1.94569e+00 2764 2015 8 2.43003e+01 9.69670e-01 2891 2015 9 2.25349e+01 1.53517e+00 3651 2015 10 1.42843e+01 1.41117e+00 1906 2015 11 1.02516e+01 2.04310e+00 1764 2015 12 5.45513e+00 1.08173e+00 356 2016 1 1.45484e+00 1.13492e+00 379 2016 2 1.11547e+00 2.32022e-01 138 2016 3 4.07604e+00 1.59400e+00 752 2016 4 6.46639e+00 1.92859e+00 879 2016 5 1.50116e+01 3.18999e+00 2146 2016 6 2.18127e+01 1.67104e+00 2492 2016 7 2.51826e+01 1.52496e+00 2660 2016 8 2.65450e+01 8.98988e-01 3417 2016 9 2.38342e+01 1.08138e+00 3579 2016 10 1.74110e+01 1.90779e+00 2625 2016 11 1.04870e+01 2.03296e+00 1877 2016 12 2.96710e+00 2.72975e+00 50 2017 1 3.37912e-01 2.76110e-01 194 2017 2 1.73225e+00 1.08259e+00 346 2017 3 2.15447e+00 9.13486e-01 596 2017 4 8.99288e+00 2.30726e+00 532 2017 5 1.31423e+01 2.42634e+00 1437 2017 6 2.02956e+01 2.16157e+00 2354 2017 7 2.43363e+01 1.33227e+00 3240 2017 8 2.40805e+01 1.04175e+00 2992 2017 9 2.13214e+01 1.77522e+00 4063 2017 10 1.82222e+01 2.69764e+00 1583 2017 11 7.90480e+00 1.95732e+00 819 2017 12 4.52448e+00 1.13648e+00 521 2018 1 8.19819e-01 4.16937e-01 83 2018 2 1.02158e+00 4.67581e-01 139 2018 3 1.87797e+00 8.19284e-01 1073 2018 4 5.65758e+00 2.01725e+00 1223 2018 5 1.72247e+01 4.10382e+00 1112 2018 6 2.16298e+01 2.05315e+00 2057 2018 7 2.55160e+01 1.28389e+00 3370 2018 8 2.52623e+01 7.82161e-01 2864 2018 9 2.32051e+01 2.31442e+00 2378 2018 10 1.45521e+01 3.16575e+00 1802 2018 11 6.53004e+00 1.60017e+00 284 2018 12 2.28245e+00 4.03112e-01 638 2019 1 1.49685e+00 5.77489e-01 151 2019 2 1.80000e-01 0.00000e+00 2 2019 3 2.07906e+00 1.08169e+00 772 2019 4 6.61407e+00 2.41316e+00 744 2019 5 1.23082e+01 2.13191e+00 806 2019 6 1.91779e+01 2.05936e+00 1412 2019 7 2.49929e+01 1.13288e+00 3113 2019 8 2.47185e+01 1.14199e+00 3549 2019 9 2.18179e+01 7.43266e-01 2796 2019 10 1.53534e+01 2.53976e+00 2430 2019 11 5.51899e+00 2.46512e+00 1179 2019 12 2.07589e+00 9.81902e-01 694 2020 1 1.85445e+00 7.44380e-01 583 2020 2 7.82567e-01 5.10402e-01 713 2020 3 2.80614e+00 1.37161e+00 1239 2020 4 7.29891e+00 9.79689e-01 2352 2020 5 1.21896e+01 3.21645e+00 1648 2020 6 2.11683e+01 1.74182e+00 3953 2020 7 2.65848e+01 1.29108e+00 3753 2020 8 2.52147e+01 7.13491e-01 3105 2020 9 2.03758e+01 2.10107e+00 4059 2020 10 1.50391e+01 1.64603e+00 2799 2020 11 8.96101e+00 1.56912e+00 2750 2020 12 4.06403e+00 1.48211e+00 1018 2021 1 1.15925e+00 6.03033e-01 488 2021 2 1.45288e+00 3.87072e-01 415 2021 3 3.72785e+00 1.96642e+00 2656 2021 4 8.68667e+00 1.37136e+00 1670 2021 5 1.34349e+01 2.78542e+00 2524 2021 6 2.21077e+01 1.80935e+00 2677 2021 7 2.43091e+01 8.66795e-01 2906 2021 8 2.57988e+01 1.12962e+00 3604 2021 9 2.23266e+01 2.32599e+00 3960 2021 10 1.82027e+01 1.67168e+00 1923 2021 11 9.35482e+00 2.73401e+00 2704 2021 12 4.12764e+00 5.38173e-01 949 2022 1 2.08517e+00 1.11834e+00 380 2022 2 3.20068e-01 2.04523e-01 513 2022 3 2.30543e+00 1.37850e+00 1208 2022 4 7.15844e+00 1.08423e+00 1253 2022 5 1.53035e+01 2.83440e+00 1688 2022 6 2.23814e+01 1.59621e+00 3691 2022 7 2.45813e+01 8.61814e-01 3365 2022 8 2.50136e+01 9.83147e-01 4030 2022 9 2.26105e+01 2.02644e+00 2685 2022 10 1.48509e+01 2.33477e+00 1956 2022 11 9.37131e+00 3.84715e+00 2515 2022 12 3.35135e+00 1.89231e-01 432 2023 1 1.29495e+00 1.00002e+00 385 2023 2 1.59086e+00 8.26425e-01 855 2023 3 2.93423e+00 6.47637e-01 2051 2023 4 8.21841e+00 2.32263e+00 2068 2023 5 1.51706e+01 2.62872e+00 3232 2023 6 2.02042e+01 1.20665e+00 3218 2023 7 2.47701e+01 8.35251e-01 3899 2023 8 2.37364e+01 1.05082e+00 3959 2023 9 2.21237e+01 1.33006e+00 3135 2023 10 1.78980e+01 3.31590e+00 2342 2023 11 8.70995e+00 1.60679e+00 3075 2023 12 3.73580e+00 3.88659e-01 908 2024 1 3.60438e+00 3.42437e-01 178 2024 2 2.28293e+00 1.00587e+00 1684 2024 3 5.00318e+00 1.14952e+00 1874 2024 4 nan nan 0