YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 3.02551e+01 3.08314e+00 7 2002 8 3.13338e+01 1.28377e+01 243 2002 9 2.52669e+01 8.79217e+00 172 2002 10 2.20366e+01 1.05570e+01 670 2002 11 1.27789e+01 7.00449e+00 1006 2002 12 8.25444e+00 5.68350e+00 594 2003 1 3.98788e+00 3.71031e+00 959 2003 2 1.38335e+01 5.48764e+00 630 2003 3 2.13779e+00 2.84095e+00 214 2003 4 3.00074e+00 4.31447e+00 149 2003 5 8.14575e+00 1.24614e+00 64 2003 6 3.40024e+00 1.65948e+00 160 2003 7 1.02139e+01 2.39442e+00 64 2003 8 2.42155e+01 2.01892e+01 73 2003 9 2.03773e+01 1.58395e+01 381 2003 10 1.40114e+01 1.31141e+01 771 2003 11 1.79825e+01 1.14097e+01 958 2003 12 5.89523e+00 7.50763e+00 865 2004 1 9.19219e+00 6.67774e+00 682 2004 2 2.02735e+01 6.22930e+00 256 2004 3 1.01692e+01 8.45270e+00 726 2004 4 3.71118e+00 3.80583e+00 363 2004 5 1.76003e+01 7.02609e+00 471 2004 6 2.70618e+01 1.67192e+01 278 2004 7 1.41778e+01 9.75868e+00 251 2004 8 2.15988e+01 1.24367e+01 292 2004 9 1.24877e+01 1.61956e+01 204 2004 10 1.87283e+01 2.24675e+01 263 2004 11 1.37682e+00 2.23510e+00 547 2004 12 1.61454e+00 3.21481e+00 531 2005 1 7.24365e+00 1.05441e+01 571 2005 2 7.97424e+00 5.18166e+00 468 2005 3 4.71394e+00 3.90246e+00 477 2005 4 6.24120e+00 4.28549e+00 236 2005 5 1.29523e+01 1.26026e+01 181 2005 6 7.39961e+00 6.46780e+00 261 2005 7 4.74770e+00 5.03667e+00 226 2005 8 4.67309e+00 6.77176e+00 228 2005 9 1.58621e+01 1.13011e+01 233 2005 10 1.22688e+01 1.20791e+01 772 2005 11 1.02002e+01 8.68199e+00 1047 2005 12 7.15489e+00 6.97064e+00 829 2006 1 6.87076e+00 5.24219e+00 768 2006 2 3.06112e+00 3.58393e+00 648 2006 3 5.90634e+00 5.14910e+00 1059 2006 4 5.55030e+00 4.21484e+00 325 2006 5 1.41944e+01 8.99654e+00 458 2006 6 2.13994e+01 1.19208e+01 248 2006 7 1.60053e+01 1.09867e+01 209 2006 8 1.96328e+01 1.68928e+01 240 2006 9 2.00512e+01 1.04892e+01 536 2006 10 1.74425e+01 9.74015e+00 929 2006 11 1.33369e+01 9.91059e+00 844 2006 12 2.37864e+01 9.82480e+00 491 2007 1 1.77405e+01 1.13591e+01 478 2007 2 1.89112e+01 9.64981e+00 951 2007 3 2.58315e+01 1.22044e+01 896 2007 4 1.26797e+01 7.36590e+00 608 2007 5 2.06727e+01 3.12639e+00 82 2007 6 2.62627e+01 5.98887e+00 112 2007 7 1.23156e+01 9.40146e+00 252 2007 8 2.43033e+01 7.95181e+00 381 2007 9 2.56296e+01 7.70622e+00 410 2007 10 2.56452e+01 1.07224e+01 643 2007 11 2.53582e+01 9.29978e+00 1018 2007 12 2.95495e+01 1.43350e+01 742 2008 1 1.79196e+01 1.43048e+01 878 2008 2 2.44157e+01 1.07917e+01 1155 2008 3 1.70344e+01 9.42269e+00 812 2008 4 1.09251e+01 8.43238e+00 509 2008 5 2.14202e+01 1.55840e+01 438 2008 6 1.19695e+01 9.44740e+00 244 2008 7 2.04612e+01 1.03416e+01 215 2008 8 1.87090e+01 4.76276e+00 126 2008 9 1.53296e+01 1.53393e+01 472 2008 10 1.38435e+01 6.26699e+00 765 2008 11 9.72607e+00 5.44709e+00 832 2008 12 1.05440e+01 8.20272e+00 793 2009 1 7.43358e+00 5.24496e+00 609 2009 2 1.34500e+01 8.59791e+00 965 2009 3 1.83589e+01 1.05281e+01 894 2009 4 1.04660e+01 9.52623e+00 379 2009 5 1.28099e+01 1.35158e+01 158 2009 6 2.24701e+01 5.86630e+00 248 2009 7 3.05738e+01 2.37446e+01 157 2009 8 6.66020e+00 6.50747e+00 354 2009 9 1.75016e+01 8.66995e+00 287 2009 10 1.82962e+01 1.26443e+01 870 2009 11 1.68324e+01 9.95537e+00 556 2009 12 1.30594e+01 6.19289e+00 212 2010 1 4.18687e+00 4.57648e+00 854 2010 2 3.28358e+00 4.32044e+00 444 2010 3 4.03756e-01 5.36797e-01 447 2010 4 2.86003e+00 3.62001e+00 316 2010 5 1.10673e+01 1.17128e+01 321 2010 6 1.25720e+01 1.07818e+01 373 2010 7 8.97028e+00 9.17856e+00 228 2010 8 1.72818e+01 9.08243e+00 132 2010 9 1.56563e+01 8.84429e+00 421 2010 10 1.27053e+01 9.14670e+00 1287 2010 11 1.66375e+01 8.48208e+00 1020 2010 12 1.37693e+01 9.73922e+00 994 2011 1 1.54388e+01 1.29288e+01 640 2011 2 2.36711e+01 8.61521e+00 587 2011 3 1.90964e+01 1.11234e+01 904 2011 4 1.66567e+01 8.04711e+00 524 2011 5 1.25554e+01 6.90550e+00 462 2011 6 8.19079e+00 8.79887e+00 133 2011 7 1.58654e+01 1.08285e+01 241 2011 8 1.90274e+01 8.35765e+00 392 2011 9 2.69038e+01 1.53800e+01 564 2011 10 1.96192e+01 1.14906e+01 1011 2011 11 2.01961e+01 8.59186e+00 729 2011 12 2.71206e+01 1.06695e+01 924 2012 1 1.37108e+01 9.10290e+00 1044 2012 2 1.39508e+01 1.04697e+01 202 2012 3 2.63087e+01 1.06343e+01 849 2012 4 1.93398e+01 8.00479e+00 670 2012 5 1.89102e+01 1.36021e+01 477 2012 6 1.99972e+01 7.78177e+00 172 2012 7 8.32865e+00 8.03769e-01 64 2012 8 3.37109e+00 6.24797e-01 64 2012 9 4.07131e+00 3.62513e+00 376 2012 10 6.61150e+00 8.58562e+00 747 2012 11 6.04331e+00 4.80691e+00 848 2012 12 1.03319e+01 8.21793e+00 447 2013 1 1.91631e+01 1.55768e+01 617 2013 2 8.77160e+00 6.72819e+00 609 2013 3 8.46641e+00 5.57462e+00 555 2013 4 2.80617e+01 1.66898e+01 331 2013 5 1.77809e+01 6.85284e+00 342 2013 6 3.38803e+01 2.15798e+01 275 2013 7 9.70972e+00 4.67572e+00 116 2013 8 4.89764e+00 1.13940e+01 120 2013 9 3.77947e+00 4.12703e+00 490 2013 10 1.36867e+01 1.66215e+01 574 2013 11 1.29309e+01 7.20307e+00 573 2013 12 1.55612e+01 9.53464e+00 809 2014 1 8.79675e+00 9.48266e+00 539 2014 2 1.14476e+01 7.89507e+00 604 2014 3 6.30695e+00 6.87198e+00 608 2014 4 1.61975e+00 2.03103e+00 154 2014 5 8.94794e-02 1.61395e-01 62 2014 6 9.19426e+00 9.42488e+00 149 2014 7 2.57864e+01 1.87578e+01 256 2014 8 1.52007e+01 8.61607e+00 241 2014 9 3.32499e+01 1.98207e+01 305 2014 10 1.41511e+01 1.00038e+01 1248 2014 11 1.10371e+01 9.04182e+00 983 2014 12 2.55516e+01 1.13679e+01 726 2015 1 1.86680e+01 1.57120e+01 868 2015 2 5.86788e+00 5.66222e+00 781 2015 3 1.12851e+01 8.80855e+00 379 2015 4 9.18258e+00 3.48114e+00 137 2015 5 2.25597e+01 8.18996e+00 269 2015 6 2.38203e+01 1.52738e+01 459 2015 7 6.36147e+01 1.42096e+00 64 2015 8 1.00919e+01 3.99946e+00 138 2015 9 6.87959e+00 1.23889e+01 239 2015 10 1.86436e+01 9.87795e+00 535 2015 11 8.91873e+00 5.57824e+00 585 2015 12 1.86495e+01 8.50325e+00 510 2016 1 1.13537e+01 8.86570e+00 619 2016 2 8.79436e+00 8.29344e+00 1160 2016 3 8.81918e+00 5.31532e+00 815 2016 4 1.10207e+01 7.43146e+00 480 2016 5 1.27311e+01 9.92171e+00 253 2016 6 2.03612e+01 1.08820e+01 330 2016 7 1.93527e+01 1.30299e+01 426 2016 8 8.80269e+00 1.01123e+01 563 2016 9 1.07603e+01 9.64210e+00 540 2016 10 8.63098e+00 6.92222e+00 501 2016 11 1.81517e+01 7.67460e+00 819 2016 12 2.12569e+01 9.27169e+00 734 2017 1 1.96702e+01 1.21167e+01 704 2017 2 1.39442e+01 7.45757e+00 1062 2017 3 2.12672e+01 9.02234e+00 858 2017 4 1.27756e+01 8.74497e+00 636 2017 5 1.47613e+01 9.01096e+00 373 2017 6 4.98887e+01 2.23167e+01 198 2017 7 9.10636e+00 9.03978e+00 128 2017 8 1.80348e+01 1.12428e+01 324 2017 9 1.50888e+01 5.24031e+00 279 2017 10 9.46933e+00 1.25503e+01 629 2017 11 1.50537e+01 9.25914e+00 807 2017 12 1.79942e+01 1.21245e+01 683 2018 1 1.74059e+01 7.49800e+00 832 2018 2 1.74881e+01 7.13306e+00 448 2018 3 1.44225e+01 1.06319e+01 596 2018 4 1.31152e+01 1.49971e+01 487 2018 5 1.77498e+01 5.43413e+00 320 2018 6 1.35062e+01 1.34934e+01 233 2018 7 2.25514e+01 1.09952e+01 194 2018 8 1.51844e+01 1.82098e+01 326 2018 9 1.71821e+01 1.66745e+01 738 2018 10 1.02206e+01 9.41616e+00 738 2018 11 1.81701e+00 2.48957e+00 212 2018 12 3.74883e+00 4.24698e+00 595 2019 1 1.04753e+00 2.52033e+00 474 2019 2 3.14564e-01 2.11631e-01 155 2019 3 2.22690e+00 2.05680e+00 549 2019 4 7.32089e+00 5.08638e+00 413 2019 5 1.65247e+01 1.19560e+01 482 2019 6 1.24127e+01 5.99018e+00 173 2019 7 1.46308e+01 1.28048e+01 296 2019 8 1.80565e+01 1.89536e+01 263 2019 9 1.19539e+01 1.05690e+01 278 2019 10 1.31921e+01 1.01947e+01 489 2019 11 2.07975e+01 1.42494e+01 668 2019 12 1.30258e+01 1.22117e+01 555 2020 1 1.61982e+01 8.31198e+00 622 2020 2 1.59353e+01 7.77384e+00 511 2020 3 2.26498e+01 9.20518e+00 529 2020 4 1.00389e+01 5.58420e+00 465 2020 5 1.38036e+01 9.99175e+00 392 2020 6 1.77815e+01 9.53651e+00 165 2020 7 2.21530e+01 1.87232e+01 127 2020 8 1.12350e+01 6.63308e+00 88 2020 9 1.41030e+01 1.31075e+01 98 2020 10 1.07031e+01 1.23172e+01 437 2020 11 1.06582e+01 1.37125e+01 638 2020 12 7.99546e+00 6.04301e+00 540 2021 1 7.53238e+00 7.94636e+00 439 2021 2 9.35422e+00 6.94068e+00 555 2021 3 6.44214e+00 4.50451e+00 463 2021 4 4.93344e+00 5.10322e+00 306 2021 5 8.68765e+00 1.12656e+01 411 2021 6 2.29686e+01 6.57692e+00 192 2021 7 1.93760e+01 5.63674e+00 64 2021 8 1.39267e-23 5.29396e-23 37 2021 9 7.92036e+00 1.59612e+01 519 2021 10 3.74277e+00 3.36221e+00 410 2021 11 2.25544e+00 2.71969e+00 732 2021 12 1.23287e+01 1.47828e+01 616 2022 1 4.75409e+00 3.89569e+00 855 2022 2 1.48443e+01 8.27557e+00 723 2022 3 1.43600e+01 1.07917e+01 659 2022 4 8.76125e+00 2.58806e+00 64 2022 5 8.12375e+00 6.40662e+00 304 2022 6 2.06567e+01 9.29575e+00 212 2022 7 1.72045e+01 2.72218e+01 168 2022 8 1.78966e+01 1.77856e+01 444 2022 9 2.62754e+01 1.26216e+01 287 2022 10 1.11779e+01 7.95184e+00 1030 2022 11 1.80676e+01 6.00707e+00 582 2022 12 1.87238e+01 9.99348e+00 908 2023 1 2.06813e+01 9.43056e+00 832 2023 2 2.06016e+01 8.01908e+00 529 2023 3 1.83428e+01 6.81950e+00 832 2023 4 2.45203e+01 1.11078e+01 198 2023 5 1.25232e+01 1.52198e+01 384 2023 6 2.99192e+01 1.81888e+01 192 2023 7 2.87469e+01 2.53028e+01 142 2023 8 2.36757e+01 1.42406e+01 337 2023 9 1.86131e+01 2.25401e+01 335 2023 10 1.31171e+01 9.68315e+00 450 2023 11 1.70341e+01 1.35292e+01 758 2023 12 8.64547e+00 8.89207e+00 287 2024 1 1.58258e+00 1.72467e+00 460 2024 2 6.51614e+00 4.55430e+00 459 2024 3 3.61310e+00 2.89478e+00 329 2024 4 nan nan 0