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 1.62042e+01 2.05062e+00 184 2002 8 2.24052e+01 6.94780e+00 530 2002 9 1.89307e+01 7.72798e+00 574 2002 10 1.55298e+01 5.39713e+00 753 2002 11 1.00457e+01 5.71572e+00 939 2002 12 1.12722e+01 7.86252e+00 644 2003 1 8.07532e+00 5.17524e+00 949 2003 2 1.00025e+01 6.11792e+00 540 2003 3 1.75555e+00 4.35840e+00 198 2003 4 1.69298e+01 2.37464e+01 79 2003 5 1.74664e+01 2.60564e+01 246 2003 6 1.67498e+01 1.76554e+01 389 2003 7 2.12640e+01 1.55736e+01 192 2003 8 1.97541e+01 1.87716e+01 432 2003 9 1.54246e+01 6.62949e+00 456 2003 10 1.85480e+01 1.42351e+01 1040 2003 11 1.09433e+01 5.66506e+00 934 2003 12 1.29318e+01 7.84722e+00 960 2004 1 1.07542e+01 6.34967e+00 894 2004 2 1.27461e+01 4.11858e+00 448 2004 3 6.89037e+00 7.32102e+00 771 2004 4 1.03523e+01 4.94717e+00 558 2004 5 1.79441e+01 6.15501e+00 589 2004 6 1.89101e+01 1.00653e+01 497 2004 7 8.73448e+00 3.90879e+00 319 2004 8 1.70956e+01 9.88960e+00 580 2004 9 1.28607e+01 1.23971e+01 314 2004 10 8.56605e-01 2.00192e+00 159 2004 11 1.07583e+00 4.22622e+00 421 2004 12 3.48953e+00 1.06897e+01 540 2005 1 2.47892e+00 2.79936e+00 820 2005 2 4.90206e+00 8.84770e+00 631 2005 3 6.63645e+00 6.08599e+00 576 2005 4 1.01786e+01 1.65182e+01 503 2005 5 1.61465e+01 1.38074e+01 351 2005 6 1.47839e+01 1.33697e+01 331 2005 7 1.38410e+01 1.12288e+01 453 2005 8 7.46843e+00 6.21531e+00 164 2005 9 1.15129e+01 9.16774e+00 258 2005 10 1.73662e+01 1.21041e+01 1032 2005 11 9.81250e+00 4.89886e+00 1069 2005 12 1.04236e+01 6.52100e+00 1067 2006 1 5.48163e+00 6.15467e+00 768 2006 2 5.97529e+00 7.72089e+00 765 2006 3 5.25299e+00 6.68160e+00 1124 2006 4 3.28619e+00 2.24764e+00 383 2006 5 1.65223e+01 7.47810e+00 499 2006 6 1.80619e+01 8.18846e+00 450 2006 7 1.14390e+01 8.03148e+00 314 2006 8 1.38185e+01 3.58514e+00 449 2006 9 1.67744e+01 6.51242e+00 866 2006 10 1.66537e+01 9.61941e+00 896 2006 11 1.44478e+01 7.83395e+00 960 2006 12 1.78898e+01 5.70325e+00 561 2007 1 1.64527e+01 3.60288e+00 384 2007 2 2.01596e+01 7.36955e+00 706 2007 3 1.67186e+01 7.27907e+00 1141 2007 4 1.76353e+01 8.70001e+00 702 2007 5 2.17311e+01 3.32933e+00 317 2007 6 1.99534e+01 5.78812e+00 446 2007 7 1.39721e+01 3.96765e+00 339 2007 8 1.89502e+01 7.13528e+00 499 2007 9 1.55073e+01 4.39588e+00 677 2007 10 1.62937e+01 6.46974e+00 640 2007 11 1.86738e+01 8.06443e+00 1089 2007 12 1.60789e+01 8.83286e+00 896 2008 1 2.15761e+01 1.05844e+01 645 2008 2 1.44190e+01 6.25849e+00 934 2008 3 6.89542e+00 8.37820e+00 786 2008 4 1.65209e+01 1.55469e+01 686 2008 5 1.03107e+01 1.15459e+01 556 2008 6 1.60966e+01 1.24707e+01 405 2008 7 1.41791e+01 7.64025e+00 445 2008 8 1.78062e+01 3.93451e+00 333 2008 9 1.10364e+01 7.95953e+00 827 2008 10 9.04607e+00 6.05633e+00 952 2008 11 1.26482e+01 5.64130e+00 1040 2008 12 5.97262e+00 5.44605e+00 941 2009 1 1.03454e+01 8.51802e+00 704 2009 2 7.22954e+00 3.61645e+00 974 2009 3 1.26300e+01 6.35282e+00 929 2009 4 1.42205e+01 1.08803e+01 405 2009 5 9.03332e+00 7.00423e+00 292 2009 6 1.67611e+01 1.10846e+01 510 2009 7 1.93137e+01 1.47688e+01 215 2009 8 1.91130e+01 1.24639e+01 512 2009 9 1.67888e+01 9.95065e+00 987 2009 10 1.49654e+01 4.71666e+00 812 2009 11 1.30558e+01 7.63999e+00 766 2009 12 1.10273e+01 7.61805e+00 256 2010 1 7.92593e+00 3.56764e+00 838 2010 2 3.27715e+00 2.67110e+00 684 2010 3 1.42022e+00 1.17400e+00 929 2010 4 4.79191e+00 6.29351e+00 328 2010 5 1.23587e+01 1.25258e+01 538 2010 6 1.61104e+01 7.38223e+00 514 2010 7 1.35304e+01 6.48953e+00 405 2010 8 1.98652e+01 7.67175e+00 318 2010 9 1.89666e+01 1.21654e+01 753 2010 10 1.42663e+01 5.34038e+00 1472 2010 11 1.47715e+01 5.82599e+00 1232 2010 12 1.63374e+01 1.02042e+01 1088 2011 1 2.11464e+01 7.77803e+00 661 2011 2 2.10638e+01 3.67132e+00 739 2011 3 1.97528e+01 6.74578e+00 813 2011 4 1.90416e+01 5.57883e+00 897 2011 5 1.64688e+01 6.50080e+00 896 2011 6 1.66125e+01 4.00727e+00 256 2011 7 1.65329e+01 5.02576e+00 343 2011 8 2.03419e+01 8.23152e+00 530 2011 9 1.68806e+01 7.64728e+00 743 2011 10 1.79564e+01 9.20203e+00 1013 2011 11 2.29260e+01 6.81171e+00 1212 2011 12 2.54395e+01 7.38506e+00 1080 2012 1 2.43163e+01 9.14155e+00 988 2012 2 2.59809e+01 6.92318e+00 237 2012 3 2.49313e+01 8.60674e+00 862 2012 4 2.41045e+01 6.72115e+00 889 2012 5 2.28706e+01 5.95772e+00 410 2012 6 7.86013e+00 1.93871e+00 145 2012 7 1.18564e+01 1.03427e+01 480 2012 8 1.11558e+01 1.50719e+01 270 2012 9 8.66239e+00 1.13715e+01 507 2012 10 7.89410e+00 1.87872e+01 747 2012 11 9.51027e+00 5.67253e+00 1023 2012 12 4.81520e+00 3.67767e+00 759 2013 1 8.28757e+00 5.17415e+00 643 2013 2 1.32633e+01 4.88384e+00 643 2013 3 1.28275e+01 8.09925e+00 704 2013 4 9.75683e+00 1.23992e+01 474 2013 5 1.06455e+01 1.06873e+01 576 2013 6 1.26586e+01 9.05915e+00 384 2013 7 1.52208e+01 6.93244e+00 64 2013 8 1.58462e+01 1.04098e+01 215 2013 9 1.28907e+01 1.81632e+01 600 2013 10 1.75911e+01 1.53171e+01 918 2013 11 4.59795e+00 2.87303e+00 332 2013 12 9.22853e+00 5.82596e+00 763 2014 1 1.19836e+01 5.81793e+00 545 2014 2 7.48133e+00 2.97918e+00 678 2014 3 4.17144e+00 4.76181e+00 634 2014 4 8.27717e+00 6.21580e+00 356 2014 5 3.50256e-01 3.51477e-01 128 2014 6 2.44549e+01 2.08035e+01 256 2014 7 1.15611e+01 9.52318e+00 585 2014 8 1.00603e+01 5.59386e+00 448 2014 9 2.13539e+01 1.33121e+01 351 2014 10 1.03192e+01 1.10030e+01 1250 2014 11 1.25492e+01 6.28896e+00 1022 2014 12 1.35719e+01 1.02733e+01 576 2015 1 1.24409e+01 7.33708e+00 832 2015 2 1.42353e+01 7.13076e+00 768 2015 3 5.28166e+00 6.09146e+00 453 2015 4 1.43411e+01 8.17025e+00 247 2015 5 1.56052e+01 1.13401e+01 771 2015 6 1.56882e+01 7.86593e+00 420 2015 7 1.81369e+01 1.49170e+01 132 2015 8 1.04558e+01 6.52000e+00 417 2015 9 1.09616e+01 5.55771e+00 295 2015 10 9.91442e+00 5.78138e+00 832 2015 11 9.34700e+00 5.66390e+00 768 2015 12 1.34127e+01 6.49797e+00 512 2016 1 7.62551e+00 5.57967e+00 640 2016 2 7.33566e+00 7.19200e+00 1171 2016 3 6.85438e+00 4.20781e+00 749 2016 4 1.30664e+01 1.14981e+01 470 2016 5 8.50500e+00 5.86346e+00 703 2016 6 1.19652e+01 4.42845e+00 657 2016 7 1.30283e+01 4.95813e+00 939 2016 8 1.57852e+01 1.08322e+01 791 2016 9 1.24554e+01 7.78015e+00 767 2016 10 1.46660e+01 8.02096e+00 1064 2016 11 1.73565e+01 5.27245e+00 917 2016 12 1.88023e+01 5.50396e+00 865 2017 1 1.57352e+01 8.33783e+00 673 2017 2 9.22697e+00 5.15176e+00 1054 2017 3 1.41193e+01 8.12960e+00 1024 2017 4 1.73444e+01 3.59485e+00 832 2017 5 1.31713e+01 6.19893e+00 627 2017 6 1.76942e+01 6.39017e+00 359 2017 7 1.40108e+01 9.02874e+00 275 2017 8 1.25495e+01 1.00291e+01 644 2017 9 7.90919e+00 4.69853e+00 513 2017 10 3.13574e+00 1.10401e+01 445 2017 11 8.87366e+00 5.86890e+00 1274 2017 12 1.03070e+01 4.10595e+00 654 2018 1 1.75911e+01 6.47094e+00 704 2018 2 1.90958e+01 5.78253e+00 584 2018 3 1.89465e+01 6.36256e+00 800 2018 4 1.31368e+01 7.92518e+00 664 2018 5 1.29148e+01 8.32593e+00 477 2018 6 7.42200e+00 5.68357e+00 308 2018 7 1.57656e+01 1.71289e+01 230 2018 8 1.87965e+01 1.81803e+01 451 2018 9 1.90919e+01 1.38878e+01 832 2018 10 1.05323e+01 9.95657e+00 1022 2018 11 4.46822e+00 5.07540e+00 390 2018 12 4.17909e+00 3.42699e+00 805 2019 1 1.00634e+00 9.80624e-01 705 2019 2 5.51726e+00 7.36240e+00 264 2019 3 6.45532e+00 5.73675e+00 711 2019 4 4.72637e+00 5.12692e+00 396 2019 5 9.70271e+00 5.17463e+00 773 2019 6 1.52639e+01 2.13996e+00 147 2019 7 1.67435e+01 1.04895e+01 243 2019 8 1.17244e+01 1.00680e+01 456 2019 9 1.45415e+01 6.11299e+00 887 2019 10 1.32014e+01 1.12187e+01 705 2019 11 1.34099e+01 5.85363e+00 879 2019 12 1.19015e+01 6.98849e+00 616 2020 1 1.31946e+01 5.35238e+00 787 2020 2 1.10547e+01 6.78395e+00 576 2020 3 1.37778e+01 1.35171e+01 718 2020 4 7.66416e+00 3.89432e+00 412 2020 5 8.62285e+00 5.68454e+00 598 2020 6 1.18390e+01 3.63707e+00 520 2020 7 1.59871e+01 1.24239e+01 289 2020 8 9.19506e+00 5.67547e+00 299 2020 9 1.11442e+01 1.45037e+01 337 2020 10 9.85771e+00 1.06804e+01 813 2020 11 2.20777e+00 2.27478e+00 965 2020 12 7.60893e+00 6.78166e+00 951 2021 1 6.02925e+00 3.67854e+00 658 2021 2 1.37254e+00 1.53594e+00 451 2021 3 1.58251e+00 2.54248e+00 422 2021 4 2.07536e+00 4.11591e+00 654 2021 5 8.22832e+00 9.43069e+00 704 2021 6 2.47564e+01 1.50338e+01 214 2021 7 1.85263e+01 1.71308e+01 338 2021 8 3.29165e+01 3.09556e+01 256 2021 9 1.16172e+01 1.91185e+01 583 2021 10 8.06675e+00 1.13523e+01 745 2021 11 5.91706e+00 8.82474e+00 959 2021 12 5.44553e+00 7.10118e+00 687 2022 1 4.45723e+00 3.41996e+00 908 2022 2 7.45812e+00 5.34248e+00 960 2022 3 6.54458e+00 4.83168e+00 729 2022 4 5.34133e+00 5.42786e+00 144 2022 5 1.11115e+01 1.11257e+01 512 2022 6 1.33788e+01 6.66258e+00 456 2022 7 1.61295e+01 8.21493e+00 560 2022 8 1.85463e+01 5.58830e+00 390 2022 9 2.55752e+01 1.93685e+01 448 2022 10 1.04818e+01 5.14282e+00 1150 2022 11 1.24896e+01 7.44723e+00 506 2022 12 1.13280e+01 7.28639e+00 920 2023 1 1.68570e+01 4.90758e+00 853 2023 2 1.55630e+01 6.27895e+00 666 2023 3 1.40800e+01 5.24108e+00 704 2023 4 1.76165e+01 9.18933e+00 384 2023 5 1.17452e+01 7.18650e+00 324 2023 6 2.05750e+01 3.77181e+00 342 2023 7 1.53931e+01 9.52060e+00 576 2023 8 1.63071e+01 1.46804e+01 537 2023 9 9.37434e+00 9.20809e+00 576 2023 10 1.30773e+01 7.77021e+00 749 2023 11 1.39210e+01 7.74973e+00 736 2023 12 8.66712e+00 6.84376e+00 356 2024 1 1.14648e+00 2.06362e+00 523 2024 2 3.18813e+00 3.48465e+00 694 2024 3 8.86789e+00 8.09459e+00 434 2024 4 nan nan 0