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 1.07118e+00 6.12731e-01 664 2002 8 1.83009e+00 4.77030e-01 694 2002 9 1.20496e+00 3.32582e-01 1022 2002 10 1.91809e+00 6.27049e-01 703 2002 11 1.85726e+00 3.46073e-01 851 2002 12 1.23749e+00 2.81879e-01 371 2003 1 1.15737e+00 2.86757e-01 1127 2003 2 1.46405e+00 3.60341e-01 357 2003 3 1.43735e+00 1.96631e-01 437 2003 4 1.15973e+00 2.79320e-01 273 2003 5 9.91898e-01 2.83902e-01 135 2003 6 7.50925e-01 2.93839e-01 470 2003 7 1.11236e+00 3.23776e-01 414 2003 8 2.26751e+00 9.46540e-01 701 2003 9 1.60173e+00 7.80704e-01 842 2003 10 1.82027e+00 9.27848e-01 963 2003 11 1.56489e+00 3.94629e-01 768 2003 12 1.82614e+00 8.51823e-01 538 2004 1 1.48267e+00 4.40135e-01 492 2004 2 1.73497e+00 2.39173e-01 577 2004 3 1.32765e+00 2.92154e-01 711 2004 4 1.28597e+00 4.04493e-01 265 2004 5 1.14423e+00 3.84881e-01 255 2004 6 8.88568e-01 2.21391e-01 575 2004 7 1.19830e+00 5.58634e-01 681 2004 8 1.83198e+00 4.59832e-01 774 2004 9 1.71309e+00 4.46704e-01 780 2004 10 1.82239e+00 5.67060e-01 625 2004 11 2.05747e+00 3.27338e-01 295 2004 12 2.09501e+00 9.48278e-01 517 2005 1 1.37141e+00 3.53470e-01 803 2005 2 1.62613e+00 3.59916e-01 548 2005 3 2.02286e+00 6.14330e-01 646 2005 4 1.31338e+00 4.90413e-01 394 2005 5 1.03772e+00 2.29588e-01 269 2005 6 1.49859e+00 5.40026e-01 400 2005 7 1.37572e+00 5.80858e-01 203 2005 8 1.79950e+00 5.90866e-01 726 2005 9 2.45144e+00 7.24635e-01 813 2005 10 1.87372e+00 7.55786e-01 1108 2005 11 1.97775e+00 1.05744e+00 381 2005 12 1.73142e+00 5.62499e-01 781 2006 1 1.87226e+00 3.97033e-01 448 2006 2 1.68389e+00 6.00802e-01 420 2006 3 1.41161e+00 3.52978e-01 831 2006 4 1.30310e+00 4.27847e-01 393 2006 5 9.79797e-01 2.02729e-01 65 2006 6 1.04060e+00 2.89324e-01 525 2006 7 1.52098e+00 8.85960e-01 290 2006 8 3.32603e+00 2.82785e+00 191 2006 9 2.02495e+00 8.17709e-01 949 2006 10 1.54480e+00 5.88059e-01 885 2006 11 2.25900e+00 1.23617e+00 734 2006 12 1.75338e+00 3.49825e-01 802 2007 1 1.38002e+00 3.17350e-01 873 2007 2 1.30550e+00 2.67340e-01 813 2007 3 1.42063e+00 3.25877e-01 611 2007 4 1.62179e+00 3.86019e-01 192 2007 5 1.05407e+00 2.03209e-01 78 2007 6 1.07172e+00 2.34683e-01 492 2007 7 2.45822e+00 1.20504e+00 262 2007 8 1.60984e+00 8.45811e-01 685 2007 9 3.50087e+00 2.81709e+00 832 2007 10 3.23470e+00 4.33314e+00 716 2007 11 2.39851e+00 9.03547e-01 899 2007 12 2.05228e+00 5.34929e-01 568 2008 1 1.47472e+00 3.14816e-01 443 2008 2 1.66829e+00 3.73065e-01 508 2008 3 1.01679e+00 2.35989e-01 410 2008 4 1.20196e+00 3.40289e-01 105 2008 5 7.31709e-01 1.65853e-01 64 2008 6 1.86719e+00 1.17408e+00 145 2008 7 1.53501e+00 9.09976e-01 283 2008 8 3.28754e+00 1.65397e+00 106 2008 9 3.37567e+00 1.99053e+00 224 2008 10 2.34184e+00 6.90333e-01 512 2008 11 2.06641e+00 5.10167e-01 404 2008 12 1.49840e+00 8.03231e-01 950 2009 1 1.27457e+00 3.58405e-01 733 2009 2 1.17950e+00 3.56350e-01 320 2009 3 1.32652e+00 2.68666e-01 428 2009 4 1.48978e+00 2.32169e-01 58 2009 5 1.11870e+00 4.42999e-01 187 2009 6 1.48604e+00 5.50825e-01 339 2009 7 7.70144e-01 9.96768e-02 109 2009 8 1.33536e+00 6.90614e-01 374 2009 9 1.83353e+00 6.56334e-01 433 2009 10 2.16625e+00 8.15814e-01 429 2009 11 2.69329e+00 1.42855e+00 465 2009 12 1.71813e+00 5.80117e-01 695 2010 1 1.27241e+00 2.02382e-01 704 2010 2 1.18519e+00 2.17564e-01 508 2010 3 9.45266e-01 2.13494e-01 493 2010 4 1.32847e+00 2.61281e-01 176 2010 5 1.43429e+00 4.70785e-01 199 2010 6 2.60632e+00 4.26529e-01 68 2010 7 8.35666e-01 2.14374e-01 410 2010 8 1.46356e+00 6.26713e-01 128 2010 9 4.65689e+00 5.71968e+00 539 2010 10 2.49023e+00 1.47318e+00 685 2010 11 1.49377e+00 3.70141e-01 1018 2010 12 1.48624e+00 2.55293e-01 736 2011 1 1.17454e+00 2.23850e-01 651 2011 2 1.32245e+00 3.02608e-01 438 2011 3 1.09850e+00 2.93465e-01 567 2011 4 1.49092e+00 8.44391e-02 97 2011 5 2.38889e+00 3.92673e-01 127 2011 6 1.19260e+00 8.66129e-01 270 2011 7 1.03705e+00 5.45433e-01 256 2011 8 7.82637e-01 3.64064e-01 680 2011 9 1.29599e+00 4.92325e-01 673 2011 10 1.56616e+00 3.63364e-01 616 2011 11 1.81868e+00 4.38515e-01 522 2011 12 1.35738e+00 3.18201e-01 985 2012 1 1.60194e+00 2.47078e-01 764 2012 2 1.42841e+00 3.20498e-01 479 2012 3 1.50841e+00 3.05643e-01 256 2012 4 8.54670e-01 1.55488e-01 127 2012 5 nan nan 0 2012 6 4.92159e-01 9.82216e-02 269 2012 7 6.35262e-01 1.10709e-01 128 2012 8 1.12298e+00 3.24890e-01 611 2012 9 1.98583e+00 1.03463e+00 630 2012 10 1.85290e+00 8.20085e-01 673 2012 11 1.59186e+00 3.38857e-01 598 2012 12 2.33050e+00 1.46184e+00 472 2013 1 1.21576e+00 4.38687e-01 512 2013 2 1.29314e+00 4.65615e-01 610 2013 3 1.29410e+00 2.54676e-01 524 2013 4 2.36152e+00 7.28358e-01 100 2013 5 1.12161e+00 3.33526e-01 192 2013 6 7.07119e-01 3.51085e-01 437 2013 7 7.10489e-01 2.48351e-01 359 2013 8 6.12461e-01 1.62713e-01 932 2013 9 1.70375e+00 5.13360e-01 707 2013 10 1.26381e+00 4.74152e-01 986 2013 11 1.30922e+00 2.89766e-01 538 2013 12 1.32022e+00 6.14212e-01 837 2014 1 9.24212e-01 2.25476e-01 732 2014 2 1.03239e+00 1.59407e-01 692 2014 3 1.09186e+00 4.34698e-01 606 2014 4 2.26913e+00 1.12115e+00 208 2014 5 1.24212e+00 2.36670e-01 423 2014 6 1.08719e+00 2.48181e-01 496 2014 7 1.18173e+00 5.29676e-01 598 2014 8 7.96106e-01 1.87820e-01 590 2014 9 1.42173e+00 5.40837e-01 1009 2014 10 2.05859e+00 5.20007e-01 811 2014 11 1.52669e+00 4.40737e-01 818 2014 12 1.21039e+00 4.71980e-01 1063 2015 1 1.17602e+00 3.98239e-01 755 2015 2 8.88647e-01 1.92546e-01 546 2015 3 1.19033e+00 2.44788e-01 431 2015 4 1.22486e+00 2.75419e-01 206 2015 5 1.63122e+00 8.58072e-01 79 2015 6 1.39107e+00 4.44942e-01 568 2015 7 1.08330e+00 3.71145e-01 209 2015 8 1.25372e+00 5.09000e-01 443 2015 9 1.87624e+00 7.38254e-01 416 2015 10 2.57263e+00 1.03471e+00 244 2015 11 1.79405e+00 3.89435e-01 685 2015 12 1.67048e+00 5.40410e-01 567 2016 1 1.39287e+00 2.42757e-01 756 2016 2 7.84418e-01 1.34166e-01 1207 2016 3 9.71722e-01 1.48728e-01 424 2016 4 6.98280e-01 2.86152e-01 524 2016 5 1.16931e+00 4.74595e-01 385 2016 6 9.20160e-01 3.49154e-01 499 2016 7 9.27406e-01 2.56336e-01 498 2016 8 1.22096e+00 4.12352e-01 618 2016 9 2.62234e+00 1.49435e+00 791 2016 10 1.69313e+00 4.62572e-01 1009 2016 11 1.51326e+00 3.79131e-01 635 2016 12 1.39057e+00 5.14809e-01 472 2017 1 1.28835e+00 2.61502e-01 757 2017 2 1.23643e+00 1.78562e-01 505 2017 3 9.36217e-01 2.30542e-01 313 2017 4 1.46243e+00 4.87298e-01 351 2017 5 1.46287e+00 4.77880e-01 152 2017 6 8.82711e-01 2.37976e-01 815 2017 7 1.36375e+00 5.47436e-01 323 2017 8 2.16823e+00 8.76557e-01 536 2017 9 6.00963e+00 3.48284e+00 374 2017 10 2.20752e+00 1.50352e+00 669 2017 11 1.39485e+00 2.18913e-01 685 2017 12 1.30028e+00 2.68058e-01 864 2018 1 1.09036e+00 2.01331e-01 898 2018 2 9.62499e-01 1.92860e-01 549 2018 3 1.06467e+00 2.46937e-01 708 2018 4 1.10160e+00 1.62995e-01 153 2018 5 1.78105e+00 6.33239e-01 228 2018 6 1.48712e+00 7.46663e-01 119 2018 7 1.35301e+00 3.47078e-01 425 2018 8 6.79937e-01 1.12927e-01 559 2018 9 1.44143e+00 5.91854e-01 705 2018 10 2.01242e+00 5.44069e-01 458 2018 11 1.68367e+00 2.56588e-01 321 2018 12 1.73047e+00 3.58919e-01 625 2019 1 1.49032e+00 7.90431e-02 320 2019 2 1.63506e+00 5.20193e-01 662 2019 3 1.15835e+00 2.69815e-01 735 2019 4 1.61630e+00 4.37918e-01 472 2019 5 1.71715e+00 7.04062e-01 404 2019 6 1.01928e+00 2.93321e-01 624 2019 7 9.49961e-01 2.97913e-01 512 2019 8 1.19144e+00 4.88106e-01 714 2019 9 1.17613e+00 3.12697e-01 975 2019 10 1.64960e+00 3.91844e-01 569 2019 11 2.13359e+00 5.97202e-01 652 2019 12 1.69376e+00 3.39719e-01 772 2020 1 1.41578e+00 2.64700e-01 837 2020 2 1.80784e+00 4.83443e-01 582 2020 3 1.65048e+00 5.68476e-01 661 2020 4 1.48522e+00 2.17452e-01 212 2020 5 1.11499e+00 2.59912e-01 246 2020 6 1.13499e+00 3.04414e-01 686 2020 7 8.21894e-01 2.04394e-01 641 2020 8 1.57758e+00 4.05600e-01 465 2020 9 2.04026e+00 6.57605e-01 878 2020 10 1.54844e+00 5.94733e-01 1301 2020 11 1.98851e+00 7.13089e-01 703 2020 12 1.61416e+00 3.34906e-01 671 2021 1 1.18812e+00 1.77698e-01 785 2021 2 9.58207e-01 1.94762e-01 754 2021 3 9.28746e-01 1.38158e-01 495 2021 4 1.15105e+00 3.22007e-01 90 2021 5 1.00782e+00 2.47461e-01 400 2021 6 7.06867e-01 2.52268e-01 525 2021 7 6.12610e-01 2.25453e-01 714 2021 8 1.04103e+00 4.77426e-01 642 2021 9 1.72248e+00 6.02876e-01 1076 2021 10 1.54769e+00 3.69895e-01 1110 2021 11 1.66684e+00 2.38586e-01 692 2021 12 1.72897e+00 6.68962e-01 530 2022 1 1.44832e+00 2.44199e-01 722 2022 2 1.01529e+00 1.76277e-01 691 2022 3 1.34973e+00 6.06559e-01 362 2022 4 3.11089e+00 0.00000e+00 1 2022 5 1.33460e+00 3.09213e-01 124 2022 6 1.15760e+00 2.36431e-01 510 2022 7 8.50298e-01 2.99742e-01 193 2022 8 7.88846e-01 1.98408e-01 357 2022 9 1.96301e+00 8.01170e-01 745 2022 10 1.49895e+00 2.98299e-01 874 2022 11 1.67715e+00 2.32668e-01 518 2022 12 1.69572e+00 4.08322e-01 595 2023 1 1.52419e+00 1.81523e-01 754 2023 2 1.60307e+00 3.64370e-01 494 2023 3 1.17986e+00 2.34839e-01 769 2023 4 8.59726e-01 1.31703e-01 733 2023 5 1.21430e+00 3.81626e-01 396 2023 6 9.13859e-01 2.55425e-01 713 2023 7 9.18515e-01 2.15935e-01 863 2023 8 9.97376e-01 3.41304e-01 576 2023 9 1.37960e+00 4.28802e-01 624 2023 10 1.84778e+00 3.30663e-01 772 2023 11 1.90161e+00 5.72113e-01 695 2023 12 1.42123e+00 3.07478e-01 766 2024 1 1.32262e+00 1.93479e-01 1028 2024 2 9.70180e-01 1.62345e-01 1016 2024 3 1.00507e+00 2.07529e-01 741 2024 4 7.70356e-01 3.10682e-02 128