YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.90594e+01 2.18571e-02 16 2000 3 1.96046e+01 4.78359e-01 140 2000 4 2.16088e+01 6.26426e-01 136 2000 5 2.49869e+01 1.63756e+00 213 2000 6 2.76600e+01 1.09626e+00 130 2000 7 2.98542e+01 9.03272e-01 160 2000 8 2.93788e+01 4.08890e-01 64 2000 9 2.74211e+01 1.39217e+00 110 2000 10 2.47558e+01 1.14157e+00 257 2000 11 2.27554e+01 1.33491e+00 134 2000 12 1.90398e+01 1.29809e+00 160 2001 1 1.72826e+01 6.76059e-01 72 2001 2 1.75562e+01 1.28407e+00 107 2001 3 1.81943e+01 1.70777e+00 96 2001 4 1.99181e+01 1.59033e+00 142 2001 5 2.36286e+01 1.33764e+00 262 2001 6 2.65512e+01 7.54314e-01 64 2001 7 2.84232e+01 3.91708e-01 80 2001 8 2.84895e+01 9.11038e-01 132 2001 9 2.89441e+01 9.89940e-01 144 2001 10 2.47791e+01 1.27834e+00 256 2001 11 2.22209e+01 6.24590e-01 230 2001 12 2.19782e+01 6.26916e-01 128 2002 1 1.85636e+01 5.49708e-01 96 2002 2 1.65606e+01 1.08894e+00 86 2002 3 1.71640e+01 9.26231e-01 50 2002 4 2.21478e+01 1.84209e+00 115 2002 5 2.48494e+01 1.66343e+00 206 2002 6 2.67187e+01 7.85906e-01 203 2002 7 2.87722e+01 1.39857e+00 499 2002 8 2.93070e+01 8.21418e-01 554 2002 9 2.85702e+01 1.12722e+00 487 2002 10 2.78296e+01 1.37953e+00 539 2002 11 2.36227e+01 1.88448e+00 495 2002 12 1.85000e+01 9.53107e-01 449 2003 1 1.72405e+01 1.01827e+00 612 2003 2 1.67520e+01 1.00050e+00 304 2003 3 1.87416e+01 1.78634e+00 280 2003 4 2.04751e+01 1.49727e+00 564 2003 5 2.50932e+01 1.13942e+00 637 2003 6 2.79316e+01 1.55231e+00 452 2003 7 2.91246e+01 1.29273e+00 428 2003 8 2.83660e+01 1.51634e+00 507 2003 9 2.86774e+01 7.65805e-01 570 2003 10 2.52894e+01 1.07212e+00 695 2003 11 2.33034e+01 9.32107e-01 840 2003 12 1.96343e+01 1.61052e+00 494 2004 1 1.79033e+01 1.12970e+00 467 2004 2 1.56269e+01 6.93864e-01 208 2004 3 1.80314e+01 8.98138e-01 609 2004 4 1.96004e+01 8.75287e-01 630 2004 5 2.44233e+01 1.87331e+00 884 2004 6 2.82938e+01 1.48612e+00 515 2004 7 2.88514e+01 1.58877e+00 648 2004 8 2.92974e+01 1.11777e+00 766 2004 9 2.73875e+01 1.59880e+00 538 2004 10 2.52277e+01 1.45117e+00 641 2004 11 2.34465e+01 1.65242e+00 479 2004 12 1.94802e+01 1.30449e+00 420 2005 1 1.71869e+01 1.24199e+00 442 2005 2 1.58927e+01 8.13703e-01 301 2005 3 1.69296e+01 8.99324e-01 467 2005 4 1.99095e+01 1.26451e+00 630 2005 5 2.39573e+01 2.05471e+00 779 2005 6 2.73033e+01 1.38109e+00 678 2005 7 2.88719e+01 1.55213e+00 648 2005 8 2.96377e+01 1.31604e+00 588 2005 9 2.85603e+01 1.18681e+00 754 2005 10 2.67334e+01 1.35195e+00 844 2005 11 2.23116e+01 1.09482e+00 601 2005 12 1.81954e+01 1.09099e+00 501 2006 1 1.71568e+01 1.20851e+00 414 2006 2 1.64742e+01 1.11030e+00 525 2006 3 1.86315e+01 9.25607e-01 767 2006 4 2.17409e+01 1.79189e+00 684 2006 5 2.43496e+01 1.41681e+00 697 2006 6 2.76273e+01 1.48392e+00 796 2006 7 2.95053e+01 1.42157e+00 643 2006 8 3.02260e+01 1.13571e+00 640 2006 9 2.92439e+01 9.11411e-01 647 2006 10 2.67994e+01 1.62088e+00 660 2006 11 2.16158e+01 1.53598e+00 672 2006 12 1.93226e+01 1.12912e+00 382 2007 1 1.74924e+01 1.53777e+00 176 2007 2 1.64002e+01 1.11797e+00 436 2007 3 1.78635e+01 1.37614e+00 644 2007 4 1.99607e+01 1.13457e+00 465 2007 5 2.30484e+01 9.54940e-01 846 2007 6 2.68291e+01 1.30715e+00 613 2007 7 2.89015e+01 1.34141e+00 502 2007 8 2.98207e+01 1.13841e+00 705 2007 9 2.90807e+01 1.14651e+00 635 2007 10 2.68761e+01 1.08052e+00 532 2007 11 2.27712e+01 1.26115e+00 867 2007 12 2.04622e+01 9.01587e-01 465 2008 1 1.82320e+01 1.74575e+00 588 2008 2 1.83228e+01 7.06037e-01 522 2008 3 1.80755e+01 1.12013e+00 502 2008 4 2.06265e+01 1.39295e+00 612 2008 5 2.37568e+01 1.55330e+00 703 2008 6 2.86040e+01 9.61841e-01 683 2008 7 2.86138e+01 1.26681e+00 709 2008 8 2.82194e+01 1.27263e+00 415 2008 9 2.77404e+01 1.03111e+00 570 2008 10 2.55920e+01 1.21786e+00 812 2008 11 2.17730e+01 1.31378e+00 750 2008 12 1.93402e+01 1.14589e+00 429 2009 1 1.79078e+01 1.27543e+00 570 2009 2 1.66695e+01 1.04763e+00 483 2009 3 1.87251e+01 1.31869e+00 615 2009 4 2.06850e+01 1.04641e+00 623 2009 5 2.45998e+01 1.58228e+00 670 2009 6 2.71655e+01 1.32282e+00 844 2009 7 2.81091e+01 1.41933e+00 525 2009 8 2.90124e+01 9.73372e-01 561 2009 9 2.82288e+01 1.23255e+00 558 2009 10 2.60854e+01 2.03354e+00 611 2009 11 2.20299e+01 1.48951e+00 458 2009 12 1.69870e+01 1.04332e+00 179 2010 1 1.54357e+01 1.09849e+00 497 2010 2 1.52062e+01 1.39656e+00 433 2010 3 1.66229e+01 9.19779e-01 493 2010 4 1.99587e+01 1.45690e+00 571 2010 5 2.55587e+01 2.46293e+00 791 2010 6 2.98283e+01 1.33555e+00 782 2010 7 2.91563e+01 1.28206e+00 754 2010 8 2.98306e+01 9.90005e-01 440 2010 9 2.92168e+01 9.03302e-01 777 2010 10 2.54785e+01 1.11246e+00 959 2010 11 2.20009e+01 1.00722e+00 765 2010 12 1.80679e+01 2.06491e+00 718 2011 1 1.53055e+01 1.15591e+00 501 2011 2 1.47999e+01 1.59047e+00 312 2011 3 1.88039e+01 1.02906e+00 561 2011 4 2.17377e+01 1.26367e+00 608 2011 5 2.47371e+01 1.48103e+00 920 2011 6 2.87140e+01 1.25858e+00 797 2011 7 3.00634e+01 9.78221e-01 568 2011 8 3.00133e+01 1.17772e+00 807 2011 9 2.83858e+01 8.08584e-01 799 2011 10 2.54678e+01 1.38408e+00 794 2011 11 2.18305e+01 1.12327e+00 550 2011 12 1.86540e+01 1.01640e+00 479 2012 1 1.83413e+01 9.66733e-01 541 2012 2 1.81472e+01 1.13962e+00 96 2012 3 2.04078e+01 1.69291e+00 664 2012 4 2.27304e+01 7.33512e-01 830 2012 5 2.56616e+01 1.36329e+00 831 2012 6 2.67699e+01 1.03183e+00 482 2012 7 2.86694e+01 8.62606e-01 540 2012 8 2.87272e+01 1.06446e+00 488 2012 9 2.75217e+01 1.02775e+00 696 2012 10 2.58300e+01 1.37209e+00 842 2012 11 2.11232e+01 9.08537e-01 697 2012 12 2.01296e+01 1.84697e+00 440 2013 1 1.88630e+01 8.98884e-01 336 2013 2 1.85463e+01 8.36557e-01 375 2013 3 1.78457e+01 8.60957e-01 672 2013 4 1.98339e+01 1.30281e+00 462 2013 5 2.36125e+01 1.62370e+00 764 2013 6 2.74838e+01 1.41812e+00 638 2013 7 2.77329e+01 1.31681e+00 323 2013 8 2.91958e+01 1.49452e+00 566 2013 9 2.94270e+01 1.06129e+00 745 2013 10 2.66409e+01 1.50122e+00 704 2013 11 2.20441e+01 2.02972e+00 542 2013 12 1.88146e+01 1.41436e+00 518 2014 1 1.59576e+01 1.46109e+00 321 2014 2 1.55586e+01 1.49513e+00 283 2014 3 1.70187e+01 1.00901e+00 437 2014 4 1.99040e+01 1.44150e+00 505 2014 5 2.40960e+01 1.35505e+00 669 2014 6 2.78156e+01 1.45231e+00 681 2014 7 2.81790e+01 1.07663e+00 583 2014 8 2.96693e+01 1.12918e+00 705 2014 9 2.95642e+01 1.22588e+00 578 2014 10 2.66854e+01 1.03564e+00 946 2014 11 2.16659e+01 1.85293e+00 603 2014 12 1.96106e+01 9.59503e-01 512 2015 1 1.72480e+01 1.42402e+00 453 2015 2 1.63992e+01 5.90293e-01 447 2015 3 1.86333e+01 1.53796e+00 345 2015 4 2.21716e+01 1.59769e+00 364 2015 5 2.56038e+01 1.69411e+00 818 2015 6 2.88196e+01 1.08261e+00 684 2015 7 2.88237e+01 1.64457e+00 503 2015 8 2.94873e+01 1.10640e+00 788 2015 9 2.87957e+01 8.50611e-01 457 2015 10 2.57351e+01 7.78490e-01 657 2015 11 2.37226e+01 1.86344e+00 587 2015 12 2.10364e+01 7.08994e-01 357 2016 1 1.83322e+01 1.48780e+00 368 2016 2 1.69564e+01 7.60187e-01 558 2016 3 1.87975e+01 1.08340e+00 384 2016 4 2.11142e+01 1.52094e+00 528 2016 5 2.43034e+01 1.67381e+00 547 2016 6 2.84360e+01 1.10208e+00 657 2016 7 3.00737e+01 1.29236e+00 737 2016 8 2.97418e+01 1.18677e+00 518 2016 9 2.94696e+01 7.64522e-01 613 2016 10 2.66954e+01 1.26970e+00 866 2016 11 2.37617e+01 1.35228e+00 658 2016 12 1.99425e+01 1.12966e+00 575 2017 1 1.93551e+01 9.95553e-01 499 2017 2 1.92584e+01 5.12254e-01 509 2017 3 1.93624e+01 9.74267e-01 640 2017 4 2.18764e+01 1.07192e+00 639 2017 5 2.43953e+01 1.34338e+00 583 2017 6 2.71632e+01 1.36588e+00 384 2017 7 2.94579e+01 1.31995e+00 644 2017 8 2.99760e+01 1.47138e+00 535 2017 9 2.82642e+01 9.56162e-01 597 2017 10 2.65318e+01 1.01377e+00 787 2017 11 2.31996e+01 1.39927e+00 752 2017 12 1.92615e+01 1.43789e+00 379 2018 1 1.61742e+01 1.24928e+00 584 2018 2 1.88130e+01 2.18861e+00 453 2018 3 1.98222e+01 1.48301e+00 696 2018 4 2.05900e+01 8.11428e-01 661 2018 5 2.47576e+01 1.83229e+00 698 2018 6 2.85830e+01 1.56641e+00 609 2018 7 2.94155e+01 1.10263e+00 578 2018 8 2.91224e+01 1.28298e+00 471 2018 9 2.97174e+01 8.76558e-01 757 2018 10 2.77440e+01 1.79483e+00 844 2018 11 2.25847e+01 1.72436e+00 387 2018 12 1.90867e+01 1.60747e+00 303 2019 1 1.73734e+01 1.65427e+00 369 2019 2 1.77853e+01 1.72098e+00 205 2019 3 1.86516e+01 1.03723e+00 577 2019 4 2.06990e+01 1.71427e+00 446 2019 5 2.59144e+01 1.78604e+00 818 2019 6 2.85713e+01 1.57466e+00 459 2019 7 2.96109e+01 1.37754e+00 536 2019 8 2.98307e+01 1.09658e+00 456 2019 9 2.95377e+01 7.68856e-01 858 2019 10 2.80602e+01 1.26723e+00 662 2019 11 2.26971e+01 1.98237e+00 654 2019 12 1.94527e+01 1.23085e+00 361 2020 1 1.81614e+01 1.04454e+00 574 2020 2 1.77181e+01 8.70328e-01 501 2020 3 2.07596e+01 2.38617e+00 548 2020 4 2.25632e+01 9.11698e-01 455 2020 5 2.36098e+01 1.35324e+00 762 2020 6 2.79495e+01 1.36131e+00 560 2020 7 2.87329e+01 1.34188e+00 494 2020 8 2.99936e+01 7.46109e-01 418 2020 9 2.86321e+01 1.75030e+00 519 2020 10 2.56249e+01 7.28751e-01 624 2020 11 2.36871e+01 1.25210e+00 787 2020 12 1.95749e+01 1.77492e+00 680 2021 1 1.65529e+01 7.00193e-01 387 2021 2 1.65503e+01 1.02208e+00 354 2021 3 1.86983e+01 9.01334e-01 464 2021 4 2.08135e+01 7.54416e-01 560 2021 5 2.38474e+01 1.19922e+00 653 2021 6 2.67177e+01 1.41912e+00 359 2021 7 2.93861e+01 1.05710e+00 511 2021 8 2.99221e+01 1.37391e+00 509 2021 9 2.84001e+01 8.66349e-01 572 2021 10 2.68877e+01 1.13132e+00 487 2021 11 2.22151e+01 1.37124e+00 783 2021 12 1.93264e+01 7.30101e-01 540 2022 1 1.83192e+01 1.68296e+00 643 2022 2 1.66471e+01 1.49486e+00 484 2022 3 1.89837e+01 8.69288e-01 683 2022 4 2.16646e+01 1.03610e+00 432 2022 5 2.50233e+01 1.06459e+00 721 2022 6 2.88405e+01 1.47562e+00 737 2022 7 3.01486e+01 1.04904e+00 593 2022 8 3.07007e+01 8.61350e-01 494 2022 9 2.93057e+01 8.22526e-01 636 2022 10 2.57995e+01 1.35892e+00 739 2022 11 2.33321e+01 1.39569e+00 443 2022 12 2.14603e+01 1.58140e+00 613 2023 1 1.93055e+01 1.11583e+00 567 2023 2 1.90130e+01 1.05523e+00 627 2023 3 2.12068e+01 1.07550e+00 660 2023 4 2.21366e+01 6.16411e-01 420 2023 5 2.43895e+01 1.84320e+00 595 2023 6 2.72307e+01 1.40574e+00 534 2023 7 2.91749e+01 1.41013e+00 642 2023 8 3.09367e+01 9.73587e-01 686 2023 9 3.03710e+01 8.29929e-01 743 2023 10 2.58039e+01 1.68239e+00 804 2023 11 2.25894e+01 1.38720e+00 497 2023 12 1.79891e+01 1.38733e+00 369 2024 1 1.60844e+01 1.02395e+00 366 2024 2 1.62968e+01 6.80454e-01 464 2024 3 1.94633e+01 1.10022e+00 330 2024 4 2.02066e+01 4.52648e-01 32