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 1.71420e+01 4.35040e+00 310 2002 8 1.99564e+01 6.90149e+00 499 2002 9 1.57115e+01 9.04273e+00 571 2002 10 1.50947e+01 5.68180e+00 745 2002 11 1.43541e+01 5.73659e+00 967 2002 12 8.66843e+00 4.41780e+00 703 2003 1 5.78518e+00 3.74141e+00 1024 2003 2 1.35212e+01 4.18596e+00 640 2003 3 1.72292e+00 2.31848e+00 184 2003 4 1.07181e+01 1.69551e+01 394 2003 5 6.99768e+00 7.23101e+00 179 2003 6 1.83475e+01 1.64869e+01 259 2003 7 1.35396e+01 1.11075e+00 79 2003 8 1.66551e+01 1.45892e+01 447 2003 9 1.53766e+01 1.39055e+01 650 2003 10 1.26932e+01 8.14541e+00 960 2003 11 1.31730e+01 4.97584e+00 1097 2003 12 8.92779e+00 4.19850e+00 896 2004 1 8.02014e+00 4.95463e+00 865 2004 2 1.62087e+01 3.35931e+00 192 2004 3 7.23280e+00 4.36657e+00 918 2004 4 1.07813e+01 5.16757e+00 719 2004 5 9.42214e+00 5.21542e+00 642 2004 6 1.49371e+01 2.84123e+00 386 2004 7 7.33933e+00 4.46608e+00 499 2004 8 1.41608e+01 9.88389e+00 647 2004 9 9.34153e+00 1.03366e+01 440 2004 10 8.41511e-01 1.41487e+00 239 2004 11 5.55180e+00 1.01085e+01 421 2004 12 8.31558e-01 1.20869e+00 636 2005 1 4.81020e+00 5.98771e+00 704 2005 2 2.41523e+00 1.76698e+00 492 2005 3 5.08163e+00 2.75680e+00 601 2005 4 7.28729e+00 9.95644e+00 319 2005 5 2.39121e+01 8.69173e+00 542 2005 6 1.36540e+01 1.47586e+01 419 2005 7 5.54795e+00 7.09308e+00 340 2005 8 2.01545e+01 1.63813e+00 32 2005 9 5.31341e+00 4.22450e+00 384 2005 10 1.11008e+01 7.20996e+00 1131 2005 11 1.25259e+01 3.88466e+00 1216 2005 12 1.37106e+01 4.48424e+00 1024 2006 1 9.36051e+00 4.85997e+00 930 2006 2 7.61540e+00 4.96179e+00 768 2006 3 4.14173e+00 5.22755e+00 994 2006 4 2.84623e+00 2.92284e+00 545 2006 5 1.52239e+01 7.55526e+00 799 2006 6 1.26940e+01 5.80700e+00 266 2006 7 1.25290e+01 8.87116e+00 492 2006 8 1.55431e+01 7.84891e+00 399 2006 9 1.23623e+01 5.67996e+00 784 2006 10 1.46213e+01 5.61343e+00 1016 2006 11 1.73598e+01 4.39498e+00 985 2006 12 1.39003e+01 7.08640e+00 558 2007 1 1.96117e+01 5.74891e+00 575 2007 2 1.94279e+01 6.10631e+00 832 2007 3 1.82491e+01 3.71558e+00 1259 2007 4 1.47626e+01 5.88190e+00 762 2007 5 2.04007e+01 4.25236e+00 487 2007 6 1.76478e+01 2.97091e+00 534 2007 7 1.34813e+01 3.99247e+00 449 2007 8 1.43648e+01 6.46764e+00 636 2007 9 1.45527e+01 5.86308e+00 672 2007 10 2.00827e+01 3.64548e+00 749 2007 11 2.34262e+01 2.38118e+00 1152 2007 12 2.08180e+01 8.55493e+00 768 2008 1 2.29737e+01 6.96429e+00 935 2008 2 2.22490e+01 5.74335e+00 1079 2008 3 1.30169e+01 9.76345e+00 927 2008 4 1.06205e+01 1.49967e+01 714 2008 5 5.96526e+00 6.80737e+00 639 2008 6 1.37000e+01 1.07951e+01 495 2008 7 1.70595e+01 5.53677e+00 445 2008 8 1.06648e+01 2.88525e+00 318 2008 9 1.06035e+01 7.37150e+00 879 2008 10 9.69620e+00 4.51430e+00 975 2008 11 1.25510e+01 5.34035e+00 1093 2008 12 6.45695e+00 4.24980e+00 880 2009 1 6.69479e+00 3.91936e+00 654 2009 2 9.34744e+00 3.05095e+00 960 2009 3 1.63505e+01 5.46553e+00 1122 2009 4 9.72110e+00 6.45608e+00 593 2009 5 7.60086e+00 6.32733e+00 194 2009 6 1.47682e+01 8.71834e+00 494 2009 7 1.49993e+01 9.24088e+00 384 2009 8 1.13453e+01 5.63484e+00 523 2009 9 1.53948e+01 9.46066e+00 897 2009 10 1.35105e+01 4.49167e+00 827 2009 11 1.44746e+01 4.40575e+00 640 2009 12 1.02344e+01 5.22348e+00 256 2010 1 3.21541e+00 2.30787e+00 924 2010 2 2.19756e+00 2.92085e+00 818 2010 3 1.03711e+00 1.53024e+00 806 2010 4 9.54834e-01 1.66064e+00 616 2010 5 1.07697e+01 1.36075e+01 635 2010 6 1.34242e+01 5.89973e+00 532 2010 7 1.14095e+01 7.53323e+00 368 2010 8 1.57503e+01 6.01174e+00 398 2010 9 1.22487e+01 6.29658e+00 812 2010 10 1.45395e+01 5.03647e+00 1575 2010 11 1.78410e+01 5.60407e+00 1206 2010 12 1.72482e+01 7.05090e+00 1024 2011 1 1.70507e+01 2.62598e+00 768 2011 2 1.86129e+01 3.27995e+00 655 2011 3 1.53199e+01 3.49744e+00 824 2011 4 1.29095e+01 5.07324e+00 924 2011 5 1.59975e+01 7.81523e+00 766 2011 6 1.81416e+01 1.70531e+00 384 2011 7 1.52311e+01 4.82051e+00 408 2011 8 1.75316e+01 6.25565e+00 740 2011 9 1.89111e+01 7.14800e+00 773 2011 10 2.03082e+01 5.91124e+00 1019 2011 11 2.55959e+01 4.79635e+00 1152 2011 12 2.65160e+01 3.89333e+00 1024 2012 1 2.08639e+01 7.94533e+00 1216 2012 2 2.60883e+01 3.26630e+00 448 2012 3 1.96655e+01 5.09745e+00 893 2012 4 1.95573e+01 3.98063e+00 936 2012 5 1.70647e+01 4.55208e+00 613 2012 6 1.37880e+01 8.83829e+00 446 2012 7 9.81678e+00 9.40507e+00 347 2012 8 8.30810e+00 9.17782e+00 327 2012 9 5.90034e+00 7.82767e+00 516 2012 10 1.04474e+01 1.11657e+01 812 2012 11 6.91196e+00 5.09941e+00 1024 2012 12 5.67133e+00 3.20438e+00 617 2013 1 1.25526e+01 8.18353e+00 755 2013 2 1.55997e+01 5.89586e+00 704 2013 3 7.11314e+00 6.47250e+00 798 2013 4 1.23728e+01 1.17620e+01 334 2013 5 8.18066e+00 5.55008e+00 545 2013 6 1.41364e+01 1.12969e+01 500 2013 7 7.63139e+00 5.10696e+00 192 2013 8 1.12080e+01 1.72570e+01 251 2013 9 1.29008e+01 1.47274e+01 700 2013 10 1.39733e+01 1.16888e+01 863 2013 11 1.25571e+01 6.99624e+00 553 2013 12 2.04092e+01 6.75421e+00 830 2014 1 1.33090e+01 4.23107e+00 490 2014 2 4.55797e+00 2.85144e+00 735 2014 3 3.26486e+00 3.87600e+00 721 2014 4 2.13258e+00 2.20895e+00 349 2014 5 1.23105e+01 1.35881e+01 142 2014 6 2.29793e+01 1.88593e+01 312 2014 7 1.34645e+01 8.83711e+00 462 2014 8 1.87075e+01 6.31763e+00 371 2014 9 1.74346e+01 5.23893e+00 567 2014 10 1.14366e+01 6.85040e+00 1401 2014 11 1.60946e+01 4.97009e+00 1019 2014 12 2.00861e+01 6.76143e+00 937 2015 1 1.92523e+01 8.79835e+00 740 2015 2 1.26772e+01 9.68468e+00 796 2015 3 5.62953e+00 6.38672e+00 512 2015 4 1.53502e+00 1.72352e+00 135 2015 5 8.90327e+00 1.15391e+01 812 2015 6 1.35706e+01 7.97086e+00 544 2015 7 1.40906e+01 1.31484e+01 299 2015 8 9.46881e+00 3.52406e+00 574 2015 9 1.01319e+01 5.66908e+00 391 2015 10 1.01605e+01 4.31228e+00 853 2015 11 1.33403e+01 6.83285e+00 756 2015 12 1.52688e+01 5.43155e+00 562 2016 1 1.54537e+01 5.00103e+00 680 2016 2 6.17941e+00 4.90981e+00 1280 2016 3 4.95342e+00 2.87061e+00 640 2016 4 7.28075e+00 1.06850e+01 528 2016 5 5.75737e+00 4.17811e+00 710 2016 6 1.04210e+01 6.35115e+00 521 2016 7 1.09292e+01 5.82834e+00 702 2016 8 1.09133e+01 6.79354e+00 715 2016 9 1.26315e+01 1.09593e+01 896 2016 10 1.45924e+01 6.94053e+00 813 2016 11 1.98335e+01 5.87995e+00 959 2016 12 2.24407e+01 4.88384e+00 820 2017 1 1.98925e+01 6.09072e+00 762 2017 2 1.39551e+01 3.71429e+00 1088 2017 3 1.34568e+01 5.15919e+00 1151 2017 4 1.11017e+01 3.15652e+00 824 2017 5 1.17020e+01 2.92815e+00 506 2017 6 1.74877e+01 7.95746e+00 457 2017 7 1.93758e+01 6.11197e+00 192 2017 8 1.42915e+01 9.75754e+00 500 2017 9 1.29464e+01 6.91145e+00 689 2017 10 4.87261e+00 5.13458e+00 858 2017 11 1.68981e+01 8.42450e+00 1171 2017 12 1.86041e+01 5.70791e+00 752 2018 1 1.50669e+01 4.17557e+00 802 2018 2 1.34534e+01 3.71817e+00 492 2018 3 1.42566e+01 6.12212e+00 810 2018 4 9.40360e+00 6.34720e+00 661 2018 5 8.01322e+00 4.40498e+00 512 2018 6 1.01730e+01 4.63373e+00 349 2018 7 2.21050e+01 1.16259e+01 461 2018 8 8.79862e+00 7.78635e+00 579 2018 9 1.89605e+01 1.28793e+01 997 2018 10 1.29507e+01 1.03654e+01 1152 2018 11 5.57835e+00 3.73020e+00 276 2018 12 3.26001e+00 2.36972e+00 710 2019 1 2.55539e+00 6.95748e+00 682 2019 2 1.83113e+01 1.32496e+01 247 2019 3 4.53484e+00 5.76205e+00 699 2019 4 1.22808e+00 1.48431e+00 390 2019 5 6.06164e+00 4.01542e+00 803 2019 6 1.76546e+01 7.79524e+00 384 2019 7 1.42779e+01 7.12523e+00 445 2019 8 1.24198e+01 9.29147e+00 656 2019 9 1.47040e+01 7.52648e+00 776 2019 10 1.42611e+01 5.79609e+00 829 2019 11 1.69320e+01 4.79363e+00 675 2019 12 1.25114e+01 6.28849e+00 426 2020 1 1.55612e+01 3.79530e+00 611 2020 2 1.64300e+01 6.03313e+00 702 2020 3 1.34178e+01 6.08936e+00 754 2020 4 6.36936e+00 2.45869e+00 628 2020 5 1.08508e+01 4.79980e+00 699 2020 6 7.06806e+00 6.27618e+00 569 2020 7 1.31768e+01 1.05554e+01 362 2020 8 1.08640e+01 3.31930e+00 90 2020 9 1.21722e+01 1.40634e+01 451 2020 10 7.21933e+00 9.02759e+00 719 2020 11 9.86795e+00 8.13363e+00 985 2020 12 7.59519e+00 4.90781e+00 648 2021 1 3.16191e+00 2.53851e+00 593 2021 2 1.14345e+00 1.01515e+00 433 2021 3 1.72860e+00 2.73074e+00 598 2021 4 3.15809e-01 6.94185e-01 502 2021 5 5.03082e+00 6.82873e+00 656 2021 6 1.68192e+01 1.53309e+01 260 2021 7 8.27837e+00 8.50952e+00 178 2021 8 9.50044e+00 1.61532e+01 412 2021 9 1.03445e+01 1.24403e+01 604 2021 10 7.59718e+00 8.68447e+00 668 2021 11 2.53307e+00 4.29660e+00 821 2021 12 7.12165e+00 1.06992e+01 562 2022 1 3.40886e+00 3.20119e+00 829 2022 2 5.05215e+00 3.77561e+00 803 2022 3 3.64020e+00 3.82460e+00 807 2022 4 6.57029e+00 7.39984e+00 172 2022 5 1.09095e+01 1.25596e+01 597 2022 6 1.22117e+01 7.36605e+00 678 2022 7 1.23209e+01 1.18270e+01 258 2022 8 1.82897e+01 6.40547e+00 458 2022 9 2.11096e+01 1.01765e+01 384 2022 10 1.02800e+01 5.32352e+00 1291 2022 11 1.92599e+01 5.52062e+00 512 2022 12 1.78237e+01 6.61742e+00 1032 2023 1 1.70351e+01 5.22738e+00 769 2023 2 1.72325e+01 3.90591e+00 648 2023 3 1.31642e+01 6.87977e+00 799 2023 4 1.82438e+01 4.40497e+00 390 2023 5 1.50371e+01 6.16490e+00 512 2023 6 2.10476e+01 5.42416e+00 326 2023 7 1.77443e+01 3.07367e+00 448 2023 8 1.48231e+01 9.78472e+00 665 2023 9 1.23376e+01 7.23664e+00 509 2023 10 1.16469e+01 4.94193e+00 752 2023 11 1.16135e+01 6.94011e+00 685 2023 12 9.68770e+00 4.71409e+00 320 2024 1 3.30143e+00 2.79320e+00 538 2024 2 4.83516e+00 5.13226e+00 481 2024 3 1.38833e+00 1.18888e+00 228 2024 4 nan nan 0