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 2.72152e+01 2.68370e+00 129 2002 8 1.84899e+01 4.50350e+00 503 2002 9 1.87657e+01 8.04241e+00 650 2002 10 1.49489e+01 4.82286e+00 949 2002 11 6.49327e+00 5.41593e+00 515 2002 12 3.84152e+00 2.94971e+00 634 2003 1 9.44548e+00 5.05902e+00 890 2003 2 1.07863e+01 4.74349e+00 562 2003 3 2.11463e+01 2.56165e+00 121 2003 4 1.82499e+01 6.02462e+00 711 2003 5 2.49478e+01 3.94111e+00 491 2003 6 3.01383e+01 5.93554e+00 162 2003 7 2.73274e+01 7.10942e+00 439 2003 8 1.98740e+01 9.42325e+00 444 2003 9 1.39211e+01 6.07335e+00 576 2003 10 9.67165e+00 4.34643e+00 636 2003 11 9.58598e+00 6.57571e+00 981 2003 12 5.14864e+00 5.60019e+00 576 2004 1 1.50701e+01 7.20564e+00 831 2004 2 1.26595e+01 4.48659e+00 508 2004 3 2.43730e+01 3.81726e+00 839 2004 4 2.35546e+01 7.87292e+00 576 2004 5 3.32568e+01 3.38372e+00 804 2004 6 3.38312e+01 2.64518e+00 640 2004 7 2.64587e+01 6.76813e+00 572 2004 8 2.94899e+01 2.70086e+00 384 2004 9 9.87327e+00 8.56590e+00 397 2004 10 8.14039e+00 4.69909e+00 990 2004 11 8.70623e+00 4.04253e+00 888 2004 12 6.22803e+00 8.43470e+00 448 2005 1 7.07065e-01 7.43119e-01 750 2005 2 4.14714e+00 2.59449e+00 618 2005 3 3.06195e+00 3.93028e+00 470 2005 4 1.70819e+01 6.38940e+00 704 2005 5 2.76940e+01 2.83963e+00 687 2005 6 2.39116e+01 4.66673e+00 321 2005 7 1.42872e+01 9.27209e+00 572 2005 8 1.48082e+01 4.87858e+00 507 2005 9 2.20441e+00 2.16435e+00 447 2005 10 2.76937e+00 3.18145e+00 810 2005 11 2.37369e+00 1.31400e+00 929 2005 12 4.11331e+00 1.29146e+00 832 2006 1 5.64885e+00 2.91550e+00 659 2006 2 9.16779e+00 6.42868e+00 768 2006 3 2.20227e+01 3.06539e+00 1067 2006 4 3.39719e+01 3.76662e+00 815 2006 5 3.57800e+01 3.48462e+00 768 2006 6 3.02095e+01 5.51093e+00 539 2006 7 2.99056e+01 4.08037e+00 371 2006 8 2.51299e+01 5.39430e+00 376 2006 9 7.03242e+00 6.42738e+00 473 2006 10 8.01258e+00 5.65020e+00 980 2006 11 1.16356e+01 5.18928e+00 832 2006 12 1.25433e+01 6.66068e+00 448 2007 1 1.62832e+01 6.93443e+00 559 2007 2 1.83176e+01 5.64773e+00 448 2007 3 2.79981e+01 4.28733e+00 963 2007 4 2.39889e+01 7.03746e+00 896 2007 5 2.86378e+01 3.60777e+00 717 2007 6 2.76273e+01 4.15123e+00 378 2007 7 2.81345e+01 4.05624e+00 538 2007 8 2.28931e+01 2.37207e+00 720 2007 9 2.03084e+01 7.04136e+00 817 2007 10 1.83602e+01 4.33698e+00 684 2007 11 1.89972e+01 5.56961e+00 1152 2007 12 1.87946e+01 7.89356e+00 1086 2008 1 1.42620e+01 1.00010e+01 672 2008 2 2.42964e+01 9.15446e+00 786 2008 3 1.80243e+01 8.23915e+00 791 2008 4 2.82222e+01 3.50960e+00 704 2008 5 2.35613e+01 3.42451e+00 640 2008 6 2.92285e+01 3.49621e+00 650 2008 7 2.64683e+01 4.71014e+00 383 2008 8 2.97546e+01 4.66485e+00 298 2008 9 1.33101e+01 7.20617e+00 481 2008 10 1.71447e+01 7.17704e+00 1032 2008 11 1.40216e+01 2.91962e+00 1098 2008 12 1.31422e+01 6.58396e+00 1111 2009 1 1.44093e+01 6.23793e+00 792 2009 2 1.83828e+01 1.08845e+01 938 2009 3 2.22902e+01 7.94329e+00 1060 2009 4 2.30449e+01 4.93377e+00 600 2009 5 2.86879e+01 2.99095e+00 757 2009 6 2.50045e+01 7.45089e+00 343 2009 7 3.02134e+01 2.44326e+00 357 2009 8 3.21642e+01 2.92812e+00 600 2009 9 2.58012e+01 2.87707e+00 476 2009 10 1.92370e+01 5.13141e+00 918 2009 11 1.33946e+01 2.83562e+00 384 2009 12 3.70194e+00 2.81344e+00 192 2010 1 1.20066e+01 5.46114e+00 576 2010 2 1.03282e+01 6.75133e+00 393 2010 3 4.78452e+00 3.33948e+00 827 2010 4 1.62946e+01 9.60513e+00 773 2010 5 3.41298e+01 2.32055e+00 628 2010 6 3.42305e+01 3.59692e+00 960 2010 7 3.33799e+01 2.02448e+00 320 2010 8 2.73161e+01 7.37203e+00 646 2010 9 2.16071e+01 6.98871e+00 830 2010 10 2.30823e+01 4.66317e+00 1427 2010 11 1.81371e+01 3.70184e+00 1152 2010 12 8.02736e+00 6.53987e+00 935 2011 1 1.84545e+01 6.45859e+00 704 2011 2 1.73608e+01 6.81810e+00 806 2011 3 2.43805e+01 6.94755e+00 1216 2011 4 2.61679e+01 5.30691e+00 960 2011 5 1.19801e+01 5.46333e+00 911 2011 6 2.16417e+01 5.10810e+00 518 2011 7 2.92433e+01 4.63238e+00 320 2011 8 2.52134e+01 3.79296e+00 422 2011 9 2.00318e+01 6.17316e+00 440 2011 10 1.10958e+01 5.33750e+00 816 2011 11 1.73681e+01 5.42276e+00 1206 2011 12 1.56719e+01 6.46213e+00 1015 2012 1 2.08728e+01 7.31675e+00 896 2012 2 2.18860e+01 8.95759e+00 463 2012 3 2.63143e+01 3.18410e+00 1206 2012 4 2.48773e+01 2.27278e+00 518 2012 5 2.96518e+01 1.81951e+00 384 2012 6 2.26599e+01 1.48862e+01 199 2012 7 2.07471e+01 9.64703e+00 256 2012 8 2.97184e+01 3.89939e+00 260 2012 9 1.33873e+01 6.77307e+00 452 2012 10 1.69077e+01 6.74663e+00 828 2012 11 1.09885e+01 3.56594e+00 721 2012 12 9.16287e+00 5.72325e+00 576 2013 1 9.29556e+00 4.31862e+00 960 2013 2 1.01788e+01 5.66575e+00 784 2013 3 1.43421e+01 6.71620e+00 768 2013 4 2.51593e+01 3.41721e+00 668 2013 5 2.57933e+01 5.08763e+00 640 2013 6 2.29616e+01 4.24056e+00 640 2013 7 2.23411e+01 8.44431e+00 380 2013 8 1.55362e+01 3.77478e+00 592 2013 9 1.04310e+01 5.20590e+00 984 2013 10 1.08022e+01 3.11951e+00 929 2013 11 1.28007e+01 7.58892e+00 329 2013 12 1.10808e+01 2.23052e+00 643 2014 1 2.95692e+00 2.58905e+00 519 2014 2 7.65866e+00 3.00356e+00 717 2014 3 8.42076e+00 2.64532e+00 641 2014 4 2.01762e+01 6.83395e+00 640 2014 5 1.96515e+01 3.26108e+00 640 2014 6 2.41874e+01 1.72434e+00 590 2014 7 2.90766e+01 2.45655e+00 349 2014 8 2.54179e+01 4.14478e+00 590 2014 9 1.53982e+01 3.70873e+00 351 2014 10 1.23979e+01 5.97959e+00 1027 2014 11 6.35156e+00 4.33962e+00 944 2014 12 6.90417e+00 3.08081e+00 679 2015 1 6.81622e+00 5.11043e+00 520 2015 2 1.02789e+01 4.10255e+00 768 2015 3 2.07965e+01 6.42215e+00 905 2015 4 3.18668e+01 1.71888e+00 512 2015 5 2.15783e+01 9.89180e+00 903 2015 6 2.23654e+01 2.85801e+00 403 2015 7 2.14170e+01 1.55459e+00 192 2015 8 1.92778e+01 6.48456e+00 576 2015 9 1.31549e+01 6.52697e+00 336 2015 10 6.22177e+00 2.57809e+00 701 2015 11 8.69271e+00 3.41101e+00 937 2015 12 1.10564e+01 4.29259e+00 644 2016 1 4.76233e+00 2.85727e+00 384 2016 2 5.60367e+00 4.63183e+00 1108 2016 3 1.56480e+01 7.43008e+00 601 2016 4 2.25128e+01 3.02605e+00 749 2016 5 2.29163e+01 3.57692e+00 962 2016 6 2.82802e+01 8.24050e+00 588 2016 7 2.33592e+01 3.58545e+00 371 2016 8 2.27543e+01 4.18424e+00 575 2016 9 1.88157e+01 1.10616e+01 867 2016 10 1.82528e+01 7.44116e+00 1024 2016 11 1.88491e+01 2.67540e+00 1148 2016 12 2.09898e+01 3.96463e+00 837 2017 1 1.68686e+01 1.05600e+01 1045 2017 2 2.07331e+01 4.62333e+00 1280 2017 3 2.75602e+01 5.20001e+00 1007 2017 4 2.49290e+01 3.07894e+00 704 2017 5 1.94391e+01 6.65159e+00 506 2017 6 2.21402e+01 9.48360e+00 320 2017 7 2.67875e+01 2.35155e+00 439 2017 8 2.16819e+01 3.01488e+00 529 2017 9 9.01359e+00 4.86363e+00 794 2017 10 4.20422e+00 2.60736e+00 654 2017 11 8.73586e+00 2.58417e+00 1025 2017 12 1.24762e+01 4.95601e+00 891 2018 1 4.84847e+00 4.03749e+00 604 2018 2 2.51189e+01 6.27008e+00 896 2018 3 2.03892e+01 8.37391e+00 1135 2018 4 2.96702e+01 7.51827e+00 960 2018 5 3.25091e+01 2.91655e+00 464 2018 6 3.22154e+01 2.77832e+00 384 2018 7 2.99128e+01 3.27084e+00 382 2018 8 3.00410e+01 3.59830e+00 661 2018 9 2.35917e+01 1.09096e+01 867 2018 10 1.00491e+01 7.22117e+00 1155 2018 11 6.45419e+00 5.71992e+00 517 2018 12 7.02551e+00 6.06835e+00 585 2019 1 9.22218e+00 5.70558e+00 782 2019 2 2.31357e+01 4.34544e+00 666 2019 3 2.48155e+01 3.84728e+00 1007 2019 4 1.64582e+01 7.43851e+00 635 2019 5 3.26929e+01 2.39823e+00 1045 2019 6 3.23325e+01 3.75596e+00 515 2019 7 3.17139e+01 2.59505e+00 376 2019 8 2.56469e+01 4.64891e+00 392 2019 9 2.35546e+01 6.03163e+00 825 2019 10 1.47938e+01 7.56032e+00 883 2019 11 8.29739e+00 2.38539e+00 512 2019 12 4.29271e+00 2.62706e+00 128 2020 1 9.47771e+00 5.64049e+00 820 2020 2 1.12953e+01 5.78741e+00 629 2020 3 2.81406e+01 8.45580e+00 712 2020 4 2.68757e+01 4.65780e+00 430 2020 5 2.80097e+01 2.24827e+00 704 2020 6 2.12024e+01 3.77097e+00 577 2020 7 2.87359e+01 3.30924e+00 276 2020 8 2.48678e+01 1.67216e+00 337 2020 9 9.02019e+00 4.98507e+00 402 2020 10 5.48799e+00 3.29896e+00 900 2020 11 4.30094e+00 3.74175e+00 860 2020 12 7.19332e+00 4.36062e+00 832 2021 1 9.14845e+00 4.68514e+00 606 2021 2 1.90195e+01 6.54213e+00 576 2021 3 2.63591e+01 3.17775e+00 803 2021 4 2.38726e+01 2.14527e+00 869 2021 5 2.10873e+01 4.41452e+00 937 2021 6 2.53715e+01 1.64260e+00 296 2021 7 1.75152e+01 4.02940e+00 481 2021 8 2.47474e+01 3.68079e+00 456 2021 9 1.67556e+01 2.88017e+00 576 2021 10 2.68650e+00 3.14465e+00 954 2021 11 4.79669e+00 2.22041e+00 707 2021 12 4.93525e+00 3.31071e+00 668 2022 1 3.65817e+00 2.97072e+00 692 2022 2 1.64375e+01 9.53135e+00 1094 2022 3 1.81200e+01 6.57404e+00 866 2022 4 2.59220e+01 5.21242e+00 384 2022 5 3.34382e+01 3.38676e+00 754 2022 6 3.24352e+01 3.22943e+00 640 2022 7 1.79043e+01 6.29060e+00 526 2022 8 8.30366e+00 2.43448e+00 639 2022 9 5.61420e+00 2.67718e+00 508 2022 10 9.56405e+00 5.83057e+00 1031 2022 11 9.42772e+00 5.28325e+00 640 2022 12 1.30059e+01 2.28816e+00 794 2023 1 1.65619e+01 5.72378e+00 878 2023 2 1.75635e+01 9.81661e+00 1040 2023 3 2.57740e+01 5.10753e+00 890 2023 4 2.61324e+01 6.91440e+00 299 2023 5 2.62475e+01 8.19725e+00 609 2023 6 2.30244e+01 2.23837e+00 359 2023 7 2.07664e+01 4.05081e+00 512 2023 8 1.71061e+01 5.66301e+00 346 2023 9 9.70425e+00 3.92690e+00 691 2023 10 1.00127e+01 6.72957e+00 704 2023 11 7.93378e+00 4.17304e+00 666 2023 12 4.81471e+00 5.56738e+00 256 2024 1 5.16274e+00 4.59373e+00 284 2024 2 9.55674e+00 4.92638e+00 779 2024 3 2.14017e+01 3.29532e+00 390 2024 4 nan nan 0