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 6.16379e+01 2.84886e-01 306 2002 8 5.90448e+01 7.98201e-01 391 2002 9 5.38731e+01 1.92476e+00 320 2002 10 4.61332e+01 2.00667e+00 1072 2002 11 3.95154e+01 1.86429e+00 718 2002 12 3.44039e+01 3.37559e-01 701 2003 1 3.65095e+01 1.14807e+00 753 2003 2 4.35046e+01 2.30259e+00 837 2003 3 5.16503e+01 2.02154e+00 748 2003 4 5.80565e+01 1.02098e+00 539 2003 5 6.12111e+01 4.92457e-01 632 2003 6 6.24512e+01 7.84801e-02 381 2003 7 6.14388e+01 4.17126e-01 260 2003 8 5.92229e+01 1.14783e+00 445 2003 9 5.35447e+01 1.69988e+00 559 2003 10 4.54382e+01 2.59046e+00 476 2003 11 3.78748e+01 1.60075e+00 395 2003 12 3.44471e+01 4.04267e-01 464 2004 1 3.73704e+01 1.06693e+00 694 2004 2 4.34569e+01 2.51872e+00 768 2004 3 5.24456e+01 2.06305e+00 881 2004 4 5.84728e+01 1.28198e+00 777 2004 5 6.17901e+01 5.53914e-01 368 2004 6 6.24196e+01 1.58304e-01 487 2004 7 6.17150e+01 4.74529e-01 489 2004 8 5.85060e+01 1.21046e+00 751 2004 9 5.17375e+01 1.20983e+00 414 2004 10 4.45376e+01 2.45099e+00 737 2004 11 3.83654e+01 1.68815e+00 940 2004 12 3.44732e+01 3.08605e-01 812 2005 1 3.71704e+01 1.57157e+00 847 2005 2 4.29432e+01 1.59519e+00 630 2005 3 5.21791e+01 2.44187e+00 580 2005 4 5.85094e+01 1.11493e+00 564 2005 5 6.15704e+01 6.27340e-01 525 2005 6 6.25438e+01 1.30593e-01 268 2005 7 6.19550e+01 3.84629e-01 468 2005 8 5.88976e+01 1.87984e+00 535 2005 9 5.34804e+01 1.55824e+00 549 2005 10 4.53620e+01 2.86518e+00 259 2005 11 3.86705e+01 1.94064e+00 869 2005 12 3.45971e+01 3.47166e-01 832 2006 1 3.63872e+01 1.41266e+00 832 2006 2 4.45892e+01 2.40120e+00 528 2006 3 5.12723e+01 2.30262e+00 708 2006 4 5.84246e+01 1.35669e+00 583 2006 5 6.12616e+01 7.12191e-01 427 2006 6 6.25587e+01 1.25029e-01 735 2006 7 6.16361e+01 3.97728e-01 404 2006 8 5.92065e+01 1.06004e+00 360 2006 9 5.22589e+01 1.42519e+00 396 2006 10 4.58263e+01 2.47196e+00 614 2006 11 3.70442e+01 1.38863e+00 523 2006 12 3.43250e+01 3.70824e-01 220 2007 1 3.62487e+01 1.31037e+00 599 2007 2 4.53687e+01 2.46679e+00 397 2007 3 5.16875e+01 2.37362e+00 848 2007 4 5.85153e+01 1.36044e+00 560 2007 5 6.11127e+01 4.85462e-01 601 2007 6 6.25815e+01 8.36733e-02 387 2007 7 6.17701e+01 2.49170e-01 382 2007 8 5.91346e+01 1.15960e+00 444 2007 9 5.27666e+01 1.84448e+00 418 2007 10 4.54157e+01 2.37687e+00 482 2007 11 3.90128e+01 1.72684e+00 677 2007 12 3.44175e+01 3.31638e-01 812 2008 1 3.68403e+01 1.61953e+00 706 2008 2 4.33867e+01 2.49670e+00 896 2008 3 5.15947e+01 2.18548e+00 716 2008 4 5.78103e+01 1.35809e+00 653 2008 5 6.14276e+01 5.63638e-01 576 2008 6 6.25601e+01 1.05754e-01 339 2008 7 6.16031e+01 6.25525e-01 474 2008 8 5.91772e+01 9.14083e-01 332 2008 9 5.33220e+01 1.52570e+00 268 2008 10 4.66034e+01 2.29704e+00 338 2008 11 3.79575e+01 1.74782e+00 964 2008 12 3.44430e+01 3.13514e-01 838 2009 1 3.71230e+01 1.90437e+00 722 2009 2 4.43551e+01 2.11770e+00 751 2009 3 5.14134e+01 2.12095e+00 420 2009 4 5.81691e+01 1.29434e+00 354 2009 5 6.13000e+01 4.85475e-01 632 2009 6 6.25342e+01 4.99199e-02 384 2009 7 6.17793e+01 4.28459e-01 304 2009 8 5.86584e+01 1.19189e+00 362 2009 9 5.31511e+01 2.22076e+00 743 2009 10 4.59448e+01 2.51650e+00 587 2009 11 3.81081e+01 1.67181e+00 517 2009 12 3.45380e+01 3.15562e-01 681 2010 1 3.71661e+01 1.48700e+00 603 2010 2 4.45361e+01 1.90969e+00 276 2010 3 5.25399e+01 2.37416e+00 684 2010 4 5.82072e+01 1.38833e+00 522 2010 5 6.14240e+01 6.23279e-01 610 2010 6 6.24294e+01 1.80419e-01 512 2010 7 6.15657e+01 4.84580e-01 360 2010 8 5.91746e+01 9.37219e-01 438 2010 9 5.46349e+01 1.10519e+00 413 2010 10 4.55742e+01 2.47403e+00 907 2010 11 3.91090e+01 1.58864e+00 694 2010 12 3.46120e+01 3.52324e-01 700 2011 1 3.65743e+01 1.60051e+00 786 2011 2 4.43968e+01 2.47081e+00 1014 2011 3 5.25095e+01 2.21258e+00 776 2011 4 5.79393e+01 1.39514e+00 889 2011 5 6.14663e+01 6.82661e-01 687 2011 6 6.25985e+01 1.43208e-01 512 2011 7 6.14649e+01 4.69375e-01 515 2011 8 5.92852e+01 1.08671e+00 225 2011 9 5.37889e+01 1.25463e+00 604 2011 10 4.77596e+01 1.61370e+00 313 2011 11 3.86026e+01 1.84808e+00 800 2011 12 3.44422e+01 2.82507e-01 819 2012 1 3.69684e+01 1.39475e+00 896 2012 2 4.58833e+01 1.35458e+00 525 2012 3 5.11645e+01 2.37084e+00 548 2012 4 5.75045e+01 1.31168e+00 523 2012 5 6.14970e+01 6.02226e-01 302 2012 6 6.24627e+01 3.21261e-01 278 2012 7 6.14753e+01 4.88887e-01 280 2012 8 5.91309e+01 8.10057e-01 435 2012 9 5.36325e+01 1.89028e+00 500 2012 10 4.54083e+01 2.10136e+00 552 2012 11 3.83296e+01 1.98477e+00 847 2012 12 3.44950e+01 3.22388e-01 552 2013 1 3.70321e+01 1.40097e+00 599 2013 2 4.40224e+01 2.43393e+00 604 2013 3 5.25319e+01 2.54782e+00 609 2013 4 5.86718e+01 9.77587e-01 600 2013 5 6.15545e+01 4.48942e-01 457 2013 6 6.25638e+01 5.38111e-02 205 2013 7 6.14006e+01 4.41074e-01 276 2013 8 5.77197e+01 9.55527e-01 241 2013 9 5.17110e+01 1.73519e+00 454 2013 10 4.52825e+01 2.30348e+00 825 2013 11 3.86994e+01 2.09776e+00 759 2013 12 3.46915e+01 5.17614e-01 434 2014 1 3.71045e+01 1.73197e+00 670 2014 2 4.36190e+01 1.96040e+00 789 2014 3 5.14265e+01 2.09084e+00 680 2014 4 5.87360e+01 1.35709e+00 405 2014 5 6.11648e+01 8.71330e-01 346 2014 6 6.24382e+01 6.30258e-02 388 2014 7 6.18224e+01 4.22087e-01 206 2014 8 5.92426e+01 9.21608e-01 651 2014 9 5.33057e+01 2.46559e+00 255 2014 10 4.58982e+01 2.61862e+00 664 2014 11 3.84619e+01 2.14476e+00 1020 2014 12 3.44922e+01 3.12160e-01 719 2015 1 3.78537e+01 1.57342e+00 711 2015 2 4.32034e+01 1.18212e+00 297 2015 3 5.10633e+01 1.99067e+00 937 2015 4 5.75590e+01 1.33772e+00 501 2015 5 6.14576e+01 4.94103e-01 704 2015 6 6.24699e+01 6.36232e-02 543 2015 7 6.15021e+01 3.49014e-01 195 2015 8 5.94582e+01 6.49112e-01 320 2015 9 5.48130e+01 1.88728e+00 409 2015 10 4.53259e+01 2.13337e+00 571 2015 11 3.78930e+01 1.87512e+00 737 2015 12 3.44897e+01 4.40208e-01 531 2016 1 3.60784e+01 1.51137e+00 192 2016 2 4.41542e+01 2.40774e+00 560 2016 3 5.21207e+01 2.04687e+00 517 2016 4 5.85898e+01 1.33390e+00 627 2016 5 6.14196e+01 5.33312e-01 768 2016 6 6.23585e+01 2.10318e-01 474 2016 7 6.16558e+01 4.79849e-01 400 2016 8 5.91755e+01 8.68083e-01 451 2016 9 5.24120e+01 2.09052e+00 606 2016 10 4.55094e+01 1.48108e+00 687 2016 11 3.83576e+01 1.62276e+00 896 2016 12 3.43943e+01 3.01495e-01 613 2017 1 3.74787e+01 1.37499e+00 776 2017 2 4.42788e+01 2.47098e+00 1109 2017 3 5.20982e+01 2.10838e+00 619 2017 4 5.82679e+01 1.63273e+00 557 2017 5 6.14077e+01 5.89203e-01 798 2017 6 6.24157e+01 7.59347e-02 280 2017 7 6.18194e+01 4.85811e-01 475 2017 8 5.92088e+01 1.10633e+00 409 2017 9 5.33436e+01 1.36299e+00 409 2017 10 4.39372e+01 1.95010e+00 193 2017 11 3.86604e+01 1.93446e+00 1063 2017 12 3.44680e+01 3.52616e-01 1149 2018 1 3.74197e+01 1.89381e+00 485 2018 2 4.38781e+01 2.14322e+00 945 2018 3 5.18768e+01 2.68375e+00 640 2018 4 5.85411e+01 1.22532e+00 581 2018 5 6.05663e+01 1.00871e-01 155 2018 6 6.24263e+01 1.22942e-01 512 2018 7 6.17969e+01 5.09817e-01 533 2018 8 5.83570e+01 4.71555e-01 195 2018 9 5.19294e+01 1.10280e+00 403 2018 10 4.48233e+01 2.19959e+00 650 2018 11 3.86205e+01 1.39996e+00 726 2018 12 3.46862e+01 4.14845e-01 768 2019 1 3.64115e+01 9.23008e-01 524 2019 2 4.44953e+01 2.48918e+00 1036 2019 3 5.16527e+01 2.68602e+00 960 2019 4 5.83782e+01 1.34733e+00 659 2019 5 6.13987e+01 5.62942e-01 730 2019 6 6.25039e+01 1.90881e-01 757 2019 7 6.14111e+01 4.28312e-01 579 2019 8 5.90258e+01 1.32100e+00 364 2019 9 5.32094e+01 2.17225e+00 417 2019 10 4.59013e+01 2.28033e+00 551 2019 11 3.82367e+01 2.18631e+00 560 2019 12 3.46125e+01 4.42548e-01 647 2020 1 3.60518e+01 1.48888e+00 832 2020 2 4.39639e+01 2.34960e+00 698 2020 3 5.23188e+01 2.09236e+00 1022 2020 4 5.76879e+01 1.26078e+00 561 2020 5 6.13154e+01 5.25735e-01 608 2020 6 6.24525e+01 6.80618e-02 382 2020 7 6.18354e+01 4.85012e-01 444 2020 8 5.88654e+01 1.30611e+00 832 2020 9 5.29712e+01 2.00534e+00 529 2020 10 4.55710e+01 1.97567e+00 259 2020 11 3.77275e+01 1.92904e+00 303 2020 12 3.44009e+01 2.90791e-01 861 2021 1 3.74794e+01 1.51025e+00 706 2021 2 4.51458e+01 1.67465e+00 768 2021 3 5.12440e+01 2.69807e+00 682 2021 4 5.85947e+01 1.29291e+00 576 2021 5 6.14877e+01 6.17324e-01 773 2021 6 6.22034e+01 2.77290e-01 128 2021 7 6.15847e+01 6.46569e-01 464 2021 8 5.91060e+01 9.88440e-01 355 2021 9 5.15724e+01 1.83159e+00 547 2021 10 4.55007e+01 2.88018e+00 313 2021 11 3.75654e+01 1.91810e+00 513 2021 12 3.45144e+01 3.44500e-01 967 2022 1 3.65187e+01 1.58288e+00 722 2022 2 4.40516e+01 2.23080e+00 725 2022 3 5.14761e+01 2.61482e+00 437 2022 4 5.95928e+01 8.12418e-01 183 2022 5 6.09271e+01 3.94091e-01 508 2022 6 6.24968e+01 1.00206e-01 134 2022 7 6.20136e+01 2.19884e-01 192 2022 8 5.76543e+01 7.29968e-01 249 2022 9 5.33854e+01 2.13459e+00 508 2022 10 4.52360e+01 2.79641e+00 578 2022 11 3.84314e+01 2.04973e+00 676 2022 12 3.44517e+01 2.44135e-01 770 2023 1 3.59678e+01 1.17298e+00 861 2023 2 4.48187e+01 2.48257e+00 971 2023 3 5.19309e+01 2.20999e+00 885 2023 4 5.81267e+01 1.40382e+00 519 2023 5 6.11316e+01 4.34906e-01 547 2023 6 6.24751e+01 1.78625e-01 515 2023 7 6.18149e+01 4.70637e-01 472 2023 8 5.90276e+01 1.27846e+00 449 2023 9 5.40356e+01 1.94718e+00 658 2023 10 4.50900e+01 1.96625e+00 653 2023 11 3.83694e+01 1.76921e+00 542 2023 12 3.44143e+01 3.42604e-01 411 2024 1 3.65456e+01 1.80492e+00 320 2024 2 4.44201e+01 1.98693e+00 777 2024 3 5.29322e+01 2.34531e+00 536 2024 4 nan nan 0