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 1.58213e+01 1.37783e+00 364 2002 8 1.48651e+01 1.25590e+00 384 2002 9 1.15053e+01 1.62705e+00 516 2002 10 9.88960e+00 1.14410e+00 1082 2002 11 6.52653e+00 1.93170e+00 636 2002 12 7.63520e+00 1.18559e+00 665 2003 1 8.05645e+00 1.29057e+00 653 2003 2 9.09305e+00 7.58057e-01 535 2003 3 1.05067e+01 5.83945e-01 331 2003 4 9.38449e+00 2.09975e+00 560 2003 5 1.47052e+01 1.63387e+00 585 2003 6 1.63374e+01 2.15432e+00 309 2003 7 1.38249e+01 1.14736e+00 364 2003 8 1.45622e+01 9.87704e-01 457 2003 9 1.12290e+01 2.19082e+00 472 2003 10 8.86465e+00 1.07039e+00 768 2003 11 7.99773e+00 2.36162e+00 1088 2003 12 6.99085e+00 1.83620e+00 940 2004 1 9.16695e+00 1.82557e+00 1020 2004 2 1.00554e+01 1.68044e+00 732 2004 3 1.37056e+01 1.05264e+00 1088 2004 4 1.02376e+01 1.58530e+00 576 2004 5 1.42015e+01 1.02758e+00 768 2004 6 1.56431e+01 1.51257e+00 602 2004 7 1.27548e+01 3.28992e+00 649 2004 8 1.14176e+01 2.04942e+00 480 2004 9 7.88352e+00 2.83059e+00 576 2004 10 6.86149e+00 1.18980e+00 941 2004 11 6.46880e+00 1.19187e+00 1085 2004 12 5.95385e+00 1.66709e+00 459 2005 1 8.05244e+00 1.35260e+00 962 2005 2 7.12303e+00 2.02887e+00 1021 2005 3 8.74552e+00 1.90077e+00 245 2005 4 1.30878e+01 1.16989e+00 892 2005 5 1.54376e+01 1.14675e+00 640 2005 6 1.22273e+01 1.06431e+00 367 2005 7 1.08198e+01 4.50841e+00 320 2005 8 1.08257e+01 7.61603e-01 451 2005 9 5.00147e+00 8.85784e-01 258 2005 10 4.63645e+00 1.86260e+00 685 2005 11 4.84289e+00 9.94515e-01 942 2005 12 5.49643e+00 8.65427e-01 960 2006 1 7.76302e+00 2.04752e+00 714 2006 2 8.77075e+00 2.00667e+00 960 2006 3 1.09471e+01 8.82903e-01 1205 2006 4 1.39678e+01 1.01652e+00 946 2006 5 1.45354e+01 1.77518e+00 997 2006 6 1.31304e+01 1.35744e+00 720 2006 7 1.47570e+01 1.32464e+00 473 2006 8 1.53624e+01 7.63614e-01 512 2006 9 1.25405e+01 1.91716e+00 534 2006 10 7.98509e+00 1.59266e+00 832 2006 11 7.11226e+00 1.51935e+00 625 2006 12 8.31582e+00 1.49696e+00 356 2007 1 9.58659e+00 9.18869e-01 640 2007 2 8.92983e+00 2.20898e+00 606 2007 3 1.35032e+01 1.52096e+00 792 2007 4 1.08525e+01 3.61841e+00 748 2007 5 1.27224e+01 1.73232e+00 640 2007 6 1.24142e+01 2.19882e+00 564 2007 7 1.35569e+01 1.03410e+00 494 2007 8 1.14560e+01 1.03769e+00 753 2007 9 1.10018e+01 1.14256e+00 782 2007 10 9.45928e+00 1.31348e+00 741 2007 11 7.49071e+00 1.63182e+00 1016 2007 12 9.07144e+00 2.25771e+00 1152 2008 1 8.99998e+00 2.55070e+00 721 2008 2 1.12650e+01 2.39355e+00 832 2008 3 1.06119e+01 3.46075e+00 607 2008 4 1.34048e+01 1.49659e+00 832 2008 5 1.40008e+01 1.50384e+00 616 2008 6 1.55725e+01 1.09468e+00 704 2008 7 1.33064e+01 9.33798e-01 387 2008 8 1.18330e+01 9.31544e-01 265 2008 9 7.48358e+00 2.54699e+00 435 2008 10 8.64302e+00 1.64654e+00 978 2008 11 8.42425e+00 1.30594e+00 1040 2008 12 8.12604e+00 2.43252e+00 1205 2009 1 9.48166e+00 2.21982e+00 793 2009 2 1.15810e+01 3.03658e+00 989 2009 3 1.08403e+01 2.58120e+00 896 2009 4 1.37176e+01 2.16829e+00 768 2009 5 1.57226e+01 1.35063e+00 589 2009 6 1.46969e+01 8.59379e-01 384 2009 7 1.51591e+01 2.23353e+00 507 2009 8 1.44530e+01 9.17424e-01 353 2009 9 1.22096e+01 1.55743e+00 483 2009 10 1.03235e+01 1.60723e+00 842 2009 11 8.82294e+00 1.28276e+00 388 2009 12 7.00752e+00 8.38732e-01 448 2010 1 8.69000e+00 1.83389e+00 474 2010 2 7.55871e+00 1.89791e+00 386 2010 3 8.94329e+00 2.34189e+00 938 2010 4 1.03240e+01 1.25113e+00 640 2010 5 1.52113e+01 1.06750e+00 896 2010 6 1.43387e+01 9.13709e-01 896 2010 7 1.52173e+01 1.30786e+00 478 2010 8 1.30468e+01 1.28938e+00 703 2010 9 1.30362e+01 1.68902e+00 662 2010 10 9.75156e+00 1.09099e+00 1048 2010 11 9.43871e+00 9.69836e-01 1111 2010 12 5.66587e+00 1.42271e+00 657 2011 1 8.30002e+00 1.30783e+00 376 2011 2 1.00817e+01 1.03709e+00 1024 2011 3 1.10793e+01 5.98670e-01 1057 2011 4 1.25758e+01 1.18130e+00 896 2011 5 1.28109e+01 1.71912e+00 793 2011 6 1.49273e+01 1.40360e+00 576 2011 7 1.43131e+01 1.50821e+00 682 2011 8 1.42413e+01 1.16919e+00 615 2011 9 8.85957e+00 6.03701e-01 320 2011 10 8.66612e+00 2.24107e+00 565 2011 11 9.01011e+00 1.42648e+00 1220 2011 12 9.10536e+00 1.02634e+00 1162 2012 1 8.21322e+00 1.39876e+00 1152 2012 2 1.12897e+01 1.54432e+00 512 2012 3 1.10469e+01 2.32377e+00 1031 2012 4 1.37174e+01 1.11040e+00 704 2012 5 1.41622e+01 8.43276e-01 576 2012 6 1.29767e+01 2.72044e+00 304 2012 7 1.45913e+01 5.84793e-01 103 2012 8 1.45447e+01 9.15747e-01 384 2012 9 1.20293e+01 8.43348e-01 642 2012 10 1.05279e+01 2.02226e+00 772 2012 11 1.01395e+01 6.65438e-01 906 2012 12 8.64821e+00 2.50474e+00 708 2013 1 9.76596e+00 1.15525e+00 965 2013 2 9.71960e+00 2.00993e+00 798 2013 3 1.09271e+01 2.34182e+00 769 2013 4 1.41077e+01 1.50012e+00 489 2013 5 1.15466e+01 1.65286e+00 770 2013 6 1.44287e+01 1.46638e+00 578 2013 7 1.41369e+01 1.13410e+00 388 2013 8 1.13802e+01 2.06721e+00 529 2013 9 9.80382e+00 1.08207e+00 469 2013 10 7.91349e+00 2.58570e+00 658 2013 11 7.58093e+00 1.60774e+00 661 2013 12 7.81886e+00 8.42967e-01 578 2014 1 7.35165e+00 1.06460e+00 592 2014 2 1.04178e+01 1.67319e+00 832 2014 3 1.12279e+01 1.64550e+00 699 2014 4 1.21402e+01 1.63740e+00 512 2014 5 1.35650e+01 1.22715e+00 834 2014 6 1.47512e+01 1.37656e+00 576 2014 7 1.25889e+01 1.52852e+00 295 2014 8 1.22181e+01 1.44059e+00 521 2014 9 9.82378e+00 3.95053e-01 256 2014 10 1.02097e+01 1.25307e+00 1017 2014 11 7.69737e+00 1.19938e+00 809 2014 12 8.42483e+00 9.29201e-01 832 2015 1 6.77044e+00 1.85754e+00 641 2015 2 7.49876e+00 8.82560e-01 732 2015 3 1.09079e+01 1.14596e+00 1194 2015 4 1.22538e+01 1.28678e+00 556 2015 5 8.82768e+00 1.99118e+00 945 2015 6 1.29045e+01 1.36050e+00 454 2015 7 1.29163e+01 8.91701e-01 247 2015 8 1.09239e+01 8.48997e-01 310 2015 9 1.04067e+01 1.38111e+00 300 2015 10 8.86973e+00 3.92304e-01 630 2015 11 9.56576e+00 9.56144e-01 768 2015 12 1.07406e+01 1.93581e+00 360 2016 1 6.54954e+00 1.95305e+00 256 2016 2 8.28670e+00 3.12220e+00 962 2016 3 1.20262e+01 2.45278e+00 455 2016 4 1.20617e+01 7.56321e-01 821 2016 5 9.52875e+00 1.86475e+00 772 2016 6 1.43298e+01 2.04585e+00 768 2016 7 1.55404e+01 1.35272e+00 436 2016 8 1.27649e+01 1.91819e+00 754 2016 9 1.19697e+01 1.11008e+00 709 2016 10 9.14417e+00 2.60384e+00 995 2016 11 1.02873e+01 1.39570e+00 1216 2016 12 9.90097e+00 5.42202e-01 948 2017 1 8.88103e+00 3.09238e+00 1158 2017 2 1.01970e+01 2.24009e+00 988 2017 3 1.27864e+01 1.13215e+00 1118 2017 4 1.32706e+01 1.16040e+00 706 2017 5 1.32377e+01 1.22665e+00 819 2017 6 1.34909e+01 2.80783e+00 151 2017 7 1.40744e+01 6.93835e-01 289 2017 8 1.30313e+01 5.66667e-01 640 2017 9 8.83909e+00 3.91428e+00 861 2017 10 6.52951e+00 1.94185e+00 795 2017 11 6.28068e+00 1.14979e+00 1137 2017 12 8.11401e+00 1.30270e+00 795 2018 1 7.92738e+00 1.01970e+00 558 2018 2 1.15486e+01 8.59121e-01 832 2018 3 1.16574e+01 1.52611e+00 1216 2018 4 1.21644e+01 1.56847e+00 832 2018 5 1.43887e+01 1.65125e+00 374 2018 6 1.39943e+01 1.13018e+00 329 2018 7 1.17701e+01 1.79610e+00 597 2018 8 1.28250e+01 9.17838e-01 648 2018 9 9.62618e+00 2.11269e+00 493 2018 10 9.98941e+00 2.43717e+00 960 2018 11 6.17453e+00 1.66961e+00 714 2018 12 5.19110e+00 1.84717e+00 640 2019 1 7.05713e+00 1.71329e+00 760 2019 2 1.15057e+01 7.86885e-01 960 2019 3 1.07723e+01 1.00232e+00 761 2019 4 1.25173e+01 2.15112e+00 667 2019 5 1.33936e+01 9.05349e-01 719 2019 6 1.41404e+01 1.77533e+00 572 2019 7 1.33167e+01 8.68660e-01 448 2019 8 1.39149e+01 1.21987e+00 401 2019 9 7.47047e+00 1.49299e+00 832 2019 10 6.75259e+00 1.08058e+00 1033 2019 11 5.88562e+00 1.06572e+00 736 2019 12 8.04785e+00 9.14119e-01 609 2020 1 9.61412e+00 2.18543e+00 936 2020 2 1.03034e+01 1.58244e+00 745 2020 3 1.34649e+01 1.36787e+00 1187 2020 4 1.68285e+01 3.35925e+00 386 2020 5 1.35400e+01 1.57403e+00 520 2020 6 1.35216e+01 9.24186e-01 512 2020 7 1.25820e+01 1.37369e+00 256 2020 8 1.08649e+01 6.31866e-01 384 2020 9 1.20014e+01 9.94738e-01 263 2020 10 9.79366e+00 8.71694e-01 456 2020 11 6.71179e+00 1.76042e+00 702 2020 12 6.46936e+00 1.27923e+00 741 2021 1 8.08974e+00 1.25862e+00 792 2021 2 1.10515e+01 3.97583e+00 674 2021 3 1.26674e+01 1.30179e+00 969 2021 4 1.28975e+01 1.52612e+00 768 2021 5 1.46886e+01 9.30236e-01 905 2021 6 1.53072e+01 1.46110e+00 192 2021 7 1.13525e+01 3.76314e+00 625 2021 8 9.76697e+00 1.20132e+00 554 2021 9 8.01970e+00 1.01695e+00 515 2021 10 7.77092e+00 9.65994e-01 613 2021 11 7.08979e+00 1.58369e+00 801 2021 12 1.05673e+01 1.50680e+00 921 2022 1 8.42232e+00 2.97727e+00 546 2022 2 9.05718e+00 1.49404e+00 961 2022 3 1.02271e+01 2.04160e+00 1031 2022 4 1.37809e+01 1.84794e+00 364 2022 5 1.52771e+01 1.52285e+00 686 2022 6 1.57433e+01 1.61313e+00 699 2022 7 1.69843e+01 1.60229e+00 358 2022 8 1.00105e+01 1.99328e+00 559 2022 9 1.08873e+01 2.50491e+00 318 2022 10 5.02425e+00 1.25931e+00 891 2022 11 7.33899e+00 1.39565e+00 777 2022 12 8.36762e+00 1.09205e+00 814 2023 1 9.94461e+00 1.95547e+00 914 2023 2 1.01587e+01 3.95057e+00 1209 2023 3 1.38129e+01 1.57134e+00 974 2023 4 1.46302e+01 1.76823e+00 384 2023 5 1.16692e+01 2.36810e+00 728 2023 6 1.48212e+01 1.29882e+00 447 2023 7 1.17944e+01 3.10754e+00 512 2023 8 1.05178e+01 1.12694e+00 413 2023 9 9.79032e+00 2.96680e+00 881 2023 10 9.95005e+00 1.25863e+00 700 2023 11 1.04125e+01 1.36986e+00 813 2023 12 7.78610e+00 3.42766e+00 432 2024 1 9.26003e+00 2.23139e+00 172 2024 2 9.94351e+00 1.89202e+00 775 2024 3 1.33260e+01 2.04213e+00 572 2024 4 nan nan 0