YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.89656e+01 2.68022e-02 16 2000 3 1.94662e+01 5.19841e-01 170 2000 4 2.13395e+01 1.03719e+00 158 2000 5 2.47846e+01 1.63507e+00 208 2000 6 2.73237e+01 1.12180e+00 144 2000 7 2.99174e+01 1.16510e+00 128 2000 8 2.93637e+01 7.18348e-01 64 2000 9 2.81188e+01 6.66048e-01 101 2000 10 2.51359e+01 9.74768e-01 229 2000 11 2.29706e+01 1.42499e+00 144 2000 12 1.88763e+01 9.50160e-01 128 2001 1 1.73726e+01 5.26612e-01 90 2001 2 1.73890e+01 1.43864e+00 82 2001 3 1.78167e+01 1.53081e+00 80 2001 4 1.99462e+01 1.74533e+00 133 2001 5 2.35980e+01 1.46869e+00 288 2001 6 2.62144e+01 7.59430e-01 50 2001 7 2.81740e+01 8.58324e-01 55 2001 8 2.79893e+01 9.27597e-01 164 2001 9 2.84145e+01 1.27513e+00 176 2001 10 2.47896e+01 1.22495e+00 229 2001 11 2.23572e+01 4.74489e-01 238 2001 12 2.14501e+01 1.17762e+00 167 2002 1 1.84342e+01 8.01430e-01 55 2002 2 1.70895e+01 9.60165e-01 55 2002 3 1.69230e+01 6.25582e-01 48 2002 4 2.17714e+01 1.86798e+00 144 2002 5 2.53888e+01 6.95973e-01 192 2002 6 2.67347e+01 7.63688e-01 192 2002 7 2.91960e+01 1.05625e+00 540 2002 8 2.90687e+01 1.01743e+00 645 2002 9 2.86052e+01 1.01922e+00 477 2002 10 2.78173e+01 1.24170e+00 582 2002 11 2.34459e+01 1.89882e+00 530 2002 12 1.90307e+01 1.47063e+00 488 2003 1 1.74119e+01 1.26414e+00 621 2003 2 1.65667e+01 1.14369e+00 312 2003 3 1.90189e+01 1.67334e+00 280 2003 4 2.05936e+01 1.52995e+00 574 2003 5 2.50124e+01 1.41267e+00 583 2003 6 2.78746e+01 1.45324e+00 428 2003 7 2.89723e+01 1.29258e+00 460 2003 8 2.88599e+01 8.46794e-01 533 2003 9 2.87081e+01 6.77422e-01 541 2003 10 2.54193e+01 9.93206e-01 660 2003 11 2.33987e+01 9.43475e-01 850 2003 12 1.95528e+01 1.42199e+00 526 2004 1 1.70576e+01 1.25378e+00 443 2004 2 1.58031e+01 8.36006e-01 189 2004 3 1.78585e+01 1.18632e+00 610 2004 4 1.96191e+01 9.63360e-01 564 2004 5 2.44837e+01 1.83898e+00 856 2004 6 2.79072e+01 1.55584e+00 556 2004 7 2.93470e+01 1.14908e+00 615 2004 8 2.91178e+01 1.32861e+00 635 2004 9 2.71635e+01 1.52677e+00 522 2004 10 2.54546e+01 1.08772e+00 679 2004 11 2.31148e+01 1.93250e+00 553 2004 12 1.95766e+01 1.51170e+00 468 2005 1 1.72065e+01 9.95549e-01 409 2005 2 1.57238e+01 9.58289e-01 315 2005 3 1.73609e+01 8.58123e-01 473 2005 4 1.99025e+01 1.16217e+00 635 2005 5 2.37002e+01 1.98544e+00 716 2005 6 2.73521e+01 1.41056e+00 673 2005 7 2.88130e+01 1.57904e+00 734 2005 8 2.94195e+01 1.51441e+00 580 2005 9 2.87347e+01 1.06500e+00 828 2005 10 2.67688e+01 1.31363e+00 947 2005 11 2.23593e+01 1.10320e+00 635 2005 12 1.88050e+01 1.08105e+00 585 2006 1 1.67640e+01 1.00940e+00 382 2006 2 1.63372e+01 9.99943e-01 427 2006 3 1.83000e+01 1.30654e+00 685 2006 4 2.17075e+01 1.82151e+00 605 2006 5 2.44022e+01 1.26449e+00 655 2006 6 2.77992e+01 1.44614e+00 828 2006 7 2.96642e+01 1.28811e+00 572 2006 8 3.01896e+01 1.10967e+00 727 2006 9 2.92951e+01 9.82245e-01 698 2006 10 2.67580e+01 1.51566e+00 653 2006 11 2.17064e+01 1.41966e+00 689 2006 12 1.89455e+01 9.61817e-01 423 2007 1 1.70744e+01 1.71126e+00 158 2007 2 1.66511e+01 8.40795e-01 357 2007 3 1.77883e+01 1.16699e+00 703 2007 4 1.98706e+01 1.18134e+00 533 2007 5 2.30598e+01 9.09169e-01 846 2007 6 2.67458e+01 1.41801e+00 645 2007 7 2.87287e+01 1.49493e+00 487 2007 8 2.97891e+01 1.33782e+00 611 2007 9 2.91292e+01 1.17437e+00 642 2007 10 2.69518e+01 1.10949e+00 587 2007 11 2.29301e+01 1.51139e+00 813 2007 12 2.00915e+01 1.23054e+00 478 2008 1 1.82947e+01 1.41080e+00 496 2008 2 1.84562e+01 8.04633e-01 444 2008 3 1.80165e+01 9.76111e-01 600 2008 4 2.07515e+01 1.26588e+00 635 2008 5 2.36755e+01 1.69737e+00 720 2008 6 2.86134e+01 1.38072e+00 661 2008 7 2.85190e+01 1.27732e+00 588 2008 8 2.81175e+01 1.28881e+00 379 2008 9 2.78396e+01 8.20043e-01 552 2008 10 2.56869e+01 1.09762e+00 775 2008 11 2.20533e+01 1.29918e+00 803 2008 12 1.92180e+01 1.13273e+00 436 2009 1 1.81076e+01 1.38432e+00 492 2009 2 1.71426e+01 6.32994e-01 496 2009 3 1.84139e+01 1.71800e+00 588 2009 4 2.07216e+01 1.20207e+00 651 2009 5 2.46495e+01 1.45179e+00 678 2009 6 2.70913e+01 1.44530e+00 868 2009 7 2.81083e+01 1.35085e+00 630 2009 8 2.91851e+01 1.01958e+00 533 2009 9 2.83571e+01 1.03829e+00 552 2009 10 2.61439e+01 1.91255e+00 524 2009 11 2.23359e+01 1.18841e+00 506 2009 12 1.73176e+01 1.24184e+00 196 2010 1 1.57816e+01 1.18037e+00 455 2010 2 1.57668e+01 1.36185e+00 405 2010 3 1.67894e+01 5.91763e-01 407 2010 4 2.03011e+01 1.35402e+00 624 2010 5 2.51115e+01 2.43985e+00 752 2010 6 2.98974e+01 1.34045e+00 788 2010 7 2.93315e+01 1.08761e+00 687 2010 8 2.93973e+01 1.37711e+00 432 2010 9 2.91099e+01 1.05770e+00 843 2010 10 2.54792e+01 1.15354e+00 918 2010 11 2.21877e+01 8.86035e-01 651 2010 12 1.83788e+01 1.83586e+00 709 2011 1 1.52779e+01 1.23175e+00 526 2011 2 1.51114e+01 1.45131e+00 280 2011 3 1.88520e+01 1.08014e+00 532 2011 4 2.17432e+01 1.25863e+00 673 2011 5 2.45790e+01 1.48713e+00 866 2011 6 2.86460e+01 1.13038e+00 785 2011 7 3.00329e+01 1.01902e+00 593 2011 8 2.99914e+01 1.03520e+00 790 2011 9 2.83762e+01 8.05036e-01 736 2011 10 2.57288e+01 1.41384e+00 743 2011 11 2.18522e+01 1.27197e+00 593 2011 12 1.89501e+01 1.03764e+00 496 2012 1 1.83095e+01 8.43685e-01 476 2012 2 1.72388e+01 1.36618e+00 126 2012 3 2.06211e+01 1.51893e+00 621 2012 4 2.26723e+01 8.07168e-01 816 2012 5 2.55519e+01 1.46728e+00 888 2012 6 2.67653e+01 9.12818e-01 488 2012 7 2.85019e+01 1.19811e+00 578 2012 8 2.85392e+01 7.84469e-01 514 2012 9 2.74905e+01 1.06931e+00 679 2012 10 2.58951e+01 1.34413e+00 884 2012 11 2.12143e+01 1.05553e+00 672 2012 12 1.95878e+01 1.93848e+00 409 2013 1 1.86995e+01 9.13497e-01 400 2013 2 1.85015e+01 9.36358e-01 456 2013 3 1.79619e+01 9.72482e-01 650 2013 4 1.99888e+01 1.30642e+00 474 2013 5 2.33601e+01 1.83812e+00 690 2013 6 2.76157e+01 1.22661e+00 505 2013 7 2.75564e+01 1.81790e+00 353 2013 8 2.90898e+01 1.30717e+00 594 2013 9 2.93917e+01 1.02050e+00 760 2013 10 2.68540e+01 1.01287e+00 675 2013 11 2.20938e+01 2.02238e+00 523 2013 12 1.88513e+01 1.05539e+00 400 2014 1 1.57874e+01 1.08005e+00 348 2014 2 1.51743e+01 1.51503e+00 289 2014 3 1.71052e+01 9.14622e-01 447 2014 4 1.98323e+01 1.35926e+00 482 2014 5 2.41574e+01 1.37205e+00 621 2014 6 2.76784e+01 1.46036e+00 737 2014 7 2.81077e+01 1.28543e+00 641 2014 8 2.96746e+01 1.02793e+00 741 2014 9 2.98527e+01 1.00960e+00 586 2014 10 2.66289e+01 1.08971e+00 1015 2014 11 2.16778e+01 1.91159e+00 656 2014 12 1.95358e+01 8.72650e-01 487 2015 1 1.75361e+01 1.13130e+00 368 2015 2 1.64816e+01 1.08871e+00 488 2015 3 1.88668e+01 1.43366e+00 422 2015 4 2.21045e+01 1.87272e+00 372 2015 5 2.55616e+01 1.83429e+00 756 2015 6 2.87844e+01 1.36370e+00 694 2015 7 2.88534e+01 1.37315e+00 636 2015 8 2.94920e+01 1.10676e+00 824 2015 9 2.86197e+01 1.00424e+00 546 2015 10 2.55777e+01 1.06740e+00 720 2015 11 2.36067e+01 1.71328e+00 660 2015 12 2.08562e+01 4.48258e-01 448 2016 1 1.82470e+01 1.39505e+00 389 2016 2 1.71363e+01 9.88631e-01 593 2016 3 1.84257e+01 1.11362e+00 426 2016 4 2.09959e+01 1.57425e+00 501 2016 5 2.43091e+01 1.60185e+00 497 2016 6 2.79520e+01 1.39695e+00 704 2016 7 3.03658e+01 1.11066e+00 667 2016 8 2.96642e+01 1.09819e+00 523 2016 9 2.94684e+01 1.02384e+00 760 2016 10 2.67333e+01 1.35654e+00 840 2016 11 2.36594e+01 1.59068e+00 673 2016 12 2.04372e+01 1.06052e+00 501 2017 1 1.93798e+01 1.02495e+00 462 2017 2 1.92353e+01 7.41493e-01 515 2017 3 1.95382e+01 1.07089e+00 594 2017 4 2.19962e+01 1.05093e+00 697 2017 5 2.43606e+01 1.33778e+00 593 2017 6 2.69807e+01 1.57475e+00 378 2017 7 2.93888e+01 1.20224e+00 631 2017 8 2.98464e+01 1.47543e+00 529 2017 9 2.81336e+01 1.17792e+00 654 2017 10 2.65053e+01 9.56963e-01 838 2017 11 2.30817e+01 1.38579e+00 781 2017 12 1.90101e+01 1.49874e+00 417 2018 1 1.70531e+01 1.18171e+00 544 2018 2 1.99280e+01 1.83433e+00 396 2018 3 2.00750e+01 1.15109e+00 764 2018 4 2.04929e+01 7.32551e-01 651 2018 5 2.48239e+01 1.71149e+00 671 2018 6 2.87112e+01 1.34433e+00 563 2018 7 2.93663e+01 1.30558e+00 582 2018 8 2.89136e+01 1.40784e+00 571 2018 9 2.96900e+01 1.06340e+00 767 2018 10 2.77075e+01 1.81737e+00 914 2018 11 2.27296e+01 1.62606e+00 369 2018 12 1.88056e+01 1.77466e+00 331 2019 1 1.76073e+01 1.27188e+00 403 2019 2 1.78242e+01 1.54977e+00 205 2019 3 1.84386e+01 1.09422e+00 582 2019 4 2.08179e+01 1.21001e+00 470 2019 5 2.61264e+01 1.66378e+00 790 2019 6 2.88713e+01 1.10294e+00 407 2019 7 2.95578e+01 1.36109e+00 582 2019 8 2.99324e+01 9.37553e-01 502 2019 9 2.95776e+01 8.03615e-01 846 2019 10 2.82548e+01 1.01864e+00 641 2019 11 2.32465e+01 1.97686e+00 623 2019 12 1.95092e+01 1.20549e+00 355 2020 1 1.84671e+01 9.02210e-01 509 2020 2 1.77115e+01 9.30727e-01 488 2020 3 2.06791e+01 2.48168e+00 593 2020 4 2.21867e+01 8.67201e-01 473 2020 5 2.37565e+01 1.33007e+00 727 2020 6 2.77486e+01 1.51532e+00 517 2020 7 2.88897e+01 1.07209e+00 500 2020 8 3.00735e+01 8.38354e-01 430 2020 9 2.87007e+01 1.66369e+00 476 2020 10 2.53868e+01 8.30855e-01 688 2020 11 2.36461e+01 1.11893e+00 759 2020 12 1.96312e+01 1.74490e+00 726 2021 1 1.65480e+01 6.85160e-01 385 2021 2 1.68036e+01 9.89979e-01 374 2021 3 1.84719e+01 7.76762e-01 414 2021 4 2.05821e+01 9.20906e-01 571 2021 5 2.40365e+01 1.29257e+00 572 2021 6 2.68764e+01 1.12372e+00 368 2021 7 2.95398e+01 9.79322e-01 501 2021 8 3.02444e+01 1.01932e+00 509 2021 9 2.83100e+01 9.73055e-01 548 2021 10 2.68708e+01 1.16211e+00 406 2021 11 2.23850e+01 1.30860e+00 831 2021 12 1.92019e+01 6.08905e-01 556 2022 1 1.82249e+01 1.46298e+00 572 2022 2 1.64883e+01 1.19765e+00 494 2022 3 1.89496e+01 7.06242e-01 744 2022 4 2.14937e+01 1.06016e+00 402 2022 5 2.51189e+01 1.12689e+00 742 2022 6 2.87709e+01 1.47149e+00 749 2022 7 2.99401e+01 1.25315e+00 620 2022 8 3.05530e+01 1.01944e+00 466 2022 9 2.91611e+01 9.10994e-01 673 2022 10 2.56418e+01 1.41364e+00 773 2022 11 2.29334e+01 1.56816e+00 451 2022 12 2.12251e+01 1.54458e+00 638 2023 1 1.98623e+01 1.18928e+00 591 2023 2 1.93288e+01 9.57055e-01 522 2023 3 2.11269e+01 9.67768e-01 600 2023 4 2.19716e+01 6.94664e-01 556 2023 5 2.44320e+01 1.70759e+00 581 2023 6 2.69362e+01 1.60156e+00 559 2023 7 2.91924e+01 1.35223e+00 633 2023 8 3.09816e+01 9.02475e-01 721 2023 9 3.02625e+01 7.31922e-01 664 2023 10 2.58870e+01 1.79476e+00 741 2023 11 2.26597e+01 1.36649e+00 567 2023 12 1.81115e+01 1.45802e+00 398 2024 1 1.64875e+01 1.02645e+00 332 2024 2 1.62597e+01 7.83425e-01 501 2024 3 1.90488e+01 1.29924e+00 420 2024 4 2.04191e+01 5.75309e-01 32