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 2.36247e+01 8.82728e+00 124 2002 8 3.36280e+01 6.70657e+00 384 2002 9 2.99771e+01 8.70080e+00 298 2002 10 2.61931e+01 9.86324e+00 789 2002 11 1.94410e+01 8.87778e+00 874 2002 12 2.20621e+01 1.50079e+01 643 2003 1 1.41263e+01 5.28562e+00 920 2003 2 2.42461e+01 1.14373e+01 515 2003 3 6.31791e-01 6.72171e-01 98 2003 4 2.72777e+01 3.85613e+01 68 2003 5 1.87003e+01 1.53932e+01 192 2003 6 2.11337e+01 1.58984e+01 232 2003 7 4.99537e+00 2.94899e+00 130 2003 8 1.02822e+01 1.24494e+01 204 2003 9 2.70986e+01 9.57323e+00 337 2003 10 1.81609e+01 1.03869e+01 881 2003 11 1.67067e+01 8.27397e+00 930 2003 12 2.17295e+01 9.66010e+00 845 2004 1 1.99059e+01 7.48678e+00 771 2004 2 2.71280e+01 6.84156e+00 386 2004 3 1.59676e+01 8.08918e+00 828 2004 4 2.46460e+01 9.09946e+00 380 2004 5 2.99139e+01 9.18001e+00 531 2004 6 2.80189e+01 6.50998e+00 370 2004 7 2.80194e+01 5.76615e+00 429 2004 8 2.84961e+01 9.05812e+00 377 2004 9 6.82909e+00 9.96834e+00 143 2004 10 1.00708e+01 5.98620e+00 87 2004 11 4.93688e-01 4.78292e-01 107 2004 12 3.41142e+00 3.06906e+00 457 2005 1 8.14148e+00 5.83695e+00 597 2005 2 9.09399e+00 5.42656e+00 505 2005 3 1.48091e+01 9.30414e+00 384 2005 4 1.47546e+01 2.50578e+01 352 2005 5 2.22650e+01 1.77932e+01 92 2005 6 1.00294e+01 4.97462e+00 256 2005 7 4.35552e+00 4.91330e+00 152 2005 8 7.39747e+00 5.35016e+00 250 2005 9 1.87904e+01 1.27405e+01 320 2005 10 2.17998e+01 9.97526e+00 846 2005 11 2.05888e+01 8.19666e+00 960 2005 12 1.48631e+01 9.16828e+00 856 2006 1 7.59995e+00 8.69014e+00 472 2006 2 3.51010e+00 3.48160e+00 367 2006 3 6.46412e+00 5.75082e+00 869 2006 4 2.67533e+01 1.10989e+01 320 2006 5 3.27126e+01 1.23512e+01 506 2006 6 2.77845e+01 9.51824e+00 320 2006 7 2.56091e+01 4.63260e+00 129 2006 8 2.60167e+01 5.35873e+00 248 2006 9 2.65231e+01 7.84555e+00 832 2006 10 2.84810e+01 1.16243e+01 715 2006 11 2.67020e+01 1.18065e+01 832 2006 12 4.00950e+01 7.99442e+00 503 2007 1 3.17035e+01 1.38657e+01 384 2007 2 3.55621e+01 1.63787e+01 723 2007 3 3.66531e+01 1.30278e+01 978 2007 4 2.89800e+01 1.19447e+01 642 2007 5 3.63725e+01 7.93320e+00 127 2007 6 3.57136e+01 8.94593e+00 231 2007 7 3.06552e+01 8.50262e+00 370 2007 8 2.04768e+01 3.58902e+00 396 2007 9 2.54632e+01 5.57116e+00 466 2007 10 3.20995e+01 1.13949e+01 622 2007 11 3.56666e+01 1.29341e+01 1088 2007 12 3.40450e+01 1.12307e+01 697 2008 1 2.59762e+01 1.67404e+01 563 2008 2 2.13951e+01 1.08014e+01 768 2008 3 1.64676e+01 1.79979e+01 472 2008 4 1.15822e+01 1.39499e+01 396 2008 5 1.31744e+01 9.28949e+00 448 2008 6 2.53682e+01 1.11477e+01 288 2008 7 3.29400e+01 1.00678e+01 452 2008 8 3.03527e+01 4.03883e+00 256 2008 9 2.22702e+01 1.39257e+01 298 2008 10 1.62808e+01 9.89580e+00 798 2008 11 3.15900e+01 1.21289e+01 958 2008 12 1.12425e+01 7.26848e+00 869 2009 1 1.57574e+01 8.30607e+00 584 2009 2 2.37965e+01 1.33378e+01 903 2009 3 2.85245e+01 1.07762e+01 815 2009 4 1.16875e+01 9.75230e+00 463 2009 5 9.36662e+00 6.75631e+00 198 2009 6 2.69281e+01 4.47495e+00 69 2009 7 nan nan 0 2009 8 1.66171e+01 9.21791e+00 451 2009 9 2.26492e+01 1.40155e+01 796 2009 10 2.62703e+01 7.79383e+00 812 2009 11 2.87610e+01 1.39950e+01 653 2009 12 2.24761e+01 1.23806e+01 185 2010 1 1.48026e+01 8.20040e+00 870 2010 2 7.23629e+00 5.99452e+00 741 2010 3 4.51575e+00 4.39620e+00 840 2010 4 6.59244e+00 9.46940e+00 171 2010 5 2.37039e+01 1.73984e+01 526 2010 6 2.54915e+01 1.05241e+01 527 2010 7 2.00716e+01 7.59118e+00 256 2010 8 2.52245e+01 1.13267e+01 160 2010 9 2.57106e+01 1.33507e+01 560 2010 10 2.78314e+01 8.65325e+00 1472 2010 11 2.96928e+01 1.02321e+01 1203 2010 12 2.40484e+01 1.33663e+01 775 2011 1 2.66015e+01 1.82174e+01 560 2011 2 3.72235e+01 1.35042e+01 741 2011 3 3.20080e+01 1.29194e+01 768 2011 4 2.78281e+01 1.02217e+01 798 2011 5 3.59362e+01 1.00981e+01 730 2011 6 4.05452e+01 7.37560e+00 256 2011 7 3.45949e+01 8.00048e+00 351 2011 8 3.83738e+01 1.07644e+01 408 2011 9 3.19034e+01 9.12953e+00 817 2011 10 2.98101e+01 1.27992e+01 885 2011 11 3.08329e+01 1.36193e+01 1088 2011 12 3.65823e+01 1.42850e+01 1011 2012 1 3.29683e+01 1.34332e+01 896 2012 2 1.98988e+01 1.81616e+01 102 2012 3 3.31061e+01 1.31560e+01 919 2012 4 3.39790e+01 1.14070e+01 711 2012 5 4.12891e+01 6.13914e+00 320 2012 6 2.40990e+01 2.78842e+00 167 2012 7 2.99935e+01 6.56434e+00 249 2012 8 3.10326e+00 5.25169e+00 350 2012 9 1.03151e+01 6.81917e+00 388 2012 10 8.34578e+00 4.55756e+00 539 2012 11 1.99224e+01 8.90416e+00 780 2012 12 1.76684e+01 1.03449e+01 412 2013 1 2.41410e+01 1.32327e+01 604 2013 2 1.31136e+01 5.21691e+00 389 2013 3 2.18370e+01 1.03520e+01 635 2013 4 1.34403e+01 2.00164e+01 380 2013 5 2.22411e+01 1.64800e+01 435 2013 6 1.69275e+01 1.80954e+01 354 2013 7 5.63659e+00 5.12754e+00 85 2013 8 3.56996e+00 2.41131e+00 65 2013 9 4.79161e+00 6.50795e+00 499 2013 10 1.70029e+01 1.36068e+01 865 2013 11 1.70059e+01 7.05947e+00 447 2013 12 1.86483e+01 1.03260e+01 704 2014 1 1.21866e+01 7.23604e+00 500 2014 2 1.86922e+01 1.18970e+01 704 2014 3 1.33042e+01 6.85371e+00 570 2014 4 6.30727e+00 5.55482e+00 235 2014 5 4.36008e+00 1.86329e+00 128 2014 6 4.30242e+00 5.71262e+00 223 2014 7 1.31293e+01 5.66024e+00 538 2014 8 3.11381e+01 1.42404e+01 358 2014 9 1.90110e+01 2.96763e+00 116 2014 10 2.22176e+01 9.28680e+00 1196 2014 11 2.68979e+01 1.36252e+01 896 2014 12 4.17094e+01 9.98244e+00 440 2015 1 2.51437e+01 1.34048e+01 784 2015 2 1.97465e+01 8.49383e+00 752 2015 3 1.39904e+01 9.02755e+00 353 2015 4 7.80729e+00 5.86926e+00 125 2015 5 1.85135e+01 8.58834e+00 438 2015 6 2.35175e+01 7.61615e+00 250 2015 7 2.83233e+01 1.05851e+01 128 2015 8 8.10492e+00 7.63830e+00 274 2015 9 1.37701e+01 6.03297e+00 206 2015 10 2.08570e+01 9.36789e+00 653 2015 11 1.44793e+01 9.29802e+00 672 2015 12 2.34248e+01 1.15981e+01 530 2016 1 1.89402e+01 1.20365e+01 359 2016 2 1.33861e+01 1.24537e+01 1034 2016 3 1.25991e+01 8.46344e+00 681 2016 4 1.87084e+01 1.52708e+01 384 2016 5 1.92741e+01 1.01674e+01 695 2016 6 3.61044e+01 6.87472e+00 512 2016 7 2.46285e+01 1.15658e+01 685 2016 8 2.44290e+01 9.35979e+00 462 2016 9 1.31299e+01 7.32044e+00 621 2016 10 1.81273e+01 1.19530e+01 685 2016 11 3.48084e+01 8.69230e+00 880 2016 12 3.11870e+01 1.28019e+01 766 2017 1 2.95177e+01 1.95698e+01 562 2017 2 1.78459e+01 9.48099e+00 936 2017 3 2.35018e+01 1.27233e+01 774 2017 4 3.05190e+01 7.91090e+00 727 2017 5 3.19919e+01 7.90451e+00 402 2017 6 2.93891e+01 9.95485e+00 191 2017 7 1.63131e+01 3.25566e+00 144 2017 8 1.77080e+01 8.37719e+00 578 2017 9 2.56933e+01 1.12854e+01 362 2017 10 6.01497e+00 4.11270e+00 254 2017 11 2.02579e+01 9.36036e+00 1222 2017 12 2.73525e+01 1.04044e+01 704 2018 1 2.40311e+01 1.20759e+01 572 2018 2 1.57718e+01 9.96856e+00 637 2018 3 1.86761e+01 1.08417e+01 709 2018 4 2.53037e+01 7.02481e+00 525 2018 5 2.27538e+01 9.48613e+00 446 2018 6 2.30640e+01 6.31842e+00 255 2018 7 1.01391e+01 7.35628e+00 40 2018 8 7.65976e+00 8.64626e+00 113 2018 9 1.87814e+01 1.61027e+01 672 2018 10 1.51467e+01 1.04156e+01 887 2018 11 2.02345e+01 7.41805e+00 268 2018 12 1.47683e+01 1.75649e+01 665 2019 1 4.80630e+00 3.12746e+00 270 2019 2 8.35219e-02 3.50858e-01 89 2019 3 1.14704e+01 9.25634e+00 498 2019 4 1.38649e+01 6.53083e+00 414 2019 5 2.38033e+01 7.30941e+00 687 2019 6 3.79453e+01 3.07350e+00 53 2019 7 3.56578e+01 8.05298e+00 128 2019 8 2.23809e+01 6.59349e+00 167 2019 9 2.29754e+01 9.44315e+00 553 2019 10 1.58466e+01 6.15621e+00 542 2019 11 2.43545e+01 9.28770e+00 878 2019 12 1.33720e+01 1.03354e+01 448 2020 1 1.87198e+01 1.10616e+01 578 2020 2 1.79173e+01 1.14411e+01 511 2020 3 1.65258e+01 1.20643e+01 586 2020 4 1.33027e+01 1.06592e+01 340 2020 5 1.96623e+01 1.11469e+01 816 2020 6 2.01943e+01 8.49182e+00 358 2020 7 2.21296e+01 2.52123e+01 197 2020 8 1.00376e+01 5.24747e+00 211 2020 9 1.21415e+01 8.82173e+00 267 2020 10 1.22660e+01 7.95090e+00 709 2020 11 1.16757e+01 6.96616e+00 746 2020 12 1.74182e+01 1.10018e+01 667 2021 1 1.26053e+01 8.76351e+00 233 2021 2 7.30513e+00 4.62638e+00 435 2021 3 9.51650e+00 6.05692e+00 418 2021 4 7.98171e+00 5.34028e+00 574 2021 5 1.76057e+01 1.02687e+01 546 2021 6 1.77200e+01 5.98324e+00 122 2021 7 2.31964e+01 8.78397e+00 72 2021 8 2.80085e+01 3.47697e+01 137 2021 9 8.34225e+00 1.54661e+01 210 2021 10 1.60039e+01 1.17160e+01 469 2021 11 1.35562e+01 8.56854e+00 952 2021 12 1.58505e+01 1.32751e+01 721 2022 1 6.89083e+00 3.77296e+00 666 2022 2 1.67439e+01 1.08023e+01 876 2022 3 1.93251e+01 1.07039e+01 784 2022 4 1.62575e+00 5.56258e-01 64 2022 5 1.40539e+01 7.35693e+00 317 2022 6 2.55442e+01 9.74393e+00 312 2022 7 3.42361e+01 1.44571e+01 319 2022 8 1.57629e+01 9.78366e+00 368 2022 9 2.02536e+01 1.10454e+01 286 2022 10 3.32116e+01 1.10000e+01 1151 2022 11 2.38393e+01 1.32962e+01 430 2022 12 2.07684e+01 1.33172e+01 967 2023 1 2.86431e+01 1.11592e+01 873 2023 2 2.79145e+01 9.73022e+00 576 2023 3 1.76110e+01 1.31733e+01 704 2023 4 2.39225e+01 1.47993e+01 388 2023 5 2.88572e+01 1.37065e+01 379 2023 6 3.29313e+01 6.77715e+00 253 2023 7 2.32315e+01 1.34999e+01 453 2023 8 1.65587e+01 1.47633e+01 268 2023 9 1.88355e+01 1.70400e+01 429 2023 10 2.08333e+01 1.02141e+01 601 2023 11 2.50177e+01 1.28943e+01 704 2023 12 1.12949e+01 8.41989e+00 284 2024 1 4.41619e+00 4.20201e+00 448 2024 2 8.87633e+00 7.13215e+00 620 2024 3 2.40601e+01 2.23912e+01 497 2024 4 nan nan 0