YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.83790e+01 3.65038e-01 48 2000 3 1.94023e+01 9.34890e-01 173 2000 4 2.09752e+01 9.46000e-01 145 2000 5 2.51636e+01 1.96362e+00 208 2000 6 2.69618e+01 6.12383e-01 81 2000 7 2.90884e+01 7.47202e-01 128 2000 8 2.86688e+01 2.05846e+00 54 2000 9 2.83112e+01 2.96394e-01 64 2000 10 2.55203e+01 7.67530e-01 224 2000 11 2.39814e+01 1.04287e+00 176 2000 12 1.95635e+01 1.38549e+00 183 2001 1 1.69882e+01 6.81950e-01 85 2001 2 1.77735e+01 5.95850e-01 84 2001 3 1.86420e+01 1.13558e+00 87 2001 4 2.05374e+01 1.56796e+00 207 2001 5 2.40114e+01 1.59180e+00 176 2001 6 2.59392e+01 7.16630e-01 64 2001 7 2.91039e+01 6.76011e-02 32 2001 8 2.88555e+01 3.92006e-01 112 2001 9 2.90096e+01 9.38855e-01 80 2001 10 2.50632e+01 1.15904e+00 192 2001 11 2.22600e+01 6.49766e-01 250 2001 12 2.20970e+01 6.77233e-01 169 2002 1 1.85690e+01 1.32610e+00 66 2002 2 1.82291e+01 5.32293e-01 112 2002 3 1.93907e+01 3.28868e-01 41 2002 4 2.15104e+01 1.93199e+00 162 2002 5 2.56317e+01 6.50534e-01 160 2002 6 2.66809e+01 8.43442e-01 131 2002 7 2.82048e+01 1.36172e+00 514 2002 8 2.89004e+01 7.11815e-01 527 2002 9 2.85053e+01 1.20476e+00 368 2002 10 2.80295e+01 1.28310e+00 578 2002 11 2.44551e+01 1.73011e+00 601 2002 12 1.92367e+01 1.02020e+00 412 2003 1 1.60384e+01 1.67798e+00 672 2003 2 1.62762e+01 9.44299e-01 322 2003 3 1.89450e+01 1.16530e+00 227 2003 4 2.08057e+01 1.30178e+00 691 2003 5 2.52628e+01 1.45320e+00 777 2003 6 2.76669e+01 1.30372e+00 542 2003 7 2.88533e+01 1.24110e+00 438 2003 8 2.86874e+01 7.18028e-01 516 2003 9 2.86119e+01 8.96358e-01 522 2003 10 2.55745e+01 1.16204e+00 661 2003 11 2.33778e+01 1.01374e+00 831 2003 12 1.94283e+01 2.25652e+00 472 2004 1 1.67040e+01 1.03973e+00 483 2004 2 1.70198e+01 9.23723e-01 239 2004 3 1.77162e+01 1.35965e+00 635 2004 4 2.01741e+01 1.14889e+00 632 2004 5 2.44285e+01 2.22464e+00 960 2004 6 2.84859e+01 9.48620e-01 684 2004 7 2.92512e+01 1.08215e+00 605 2004 8 2.93054e+01 9.42005e-01 607 2004 9 2.77687e+01 1.62196e+00 464 2004 10 2.54908e+01 1.17254e+00 699 2004 11 2.41107e+01 1.47131e+00 582 2004 12 1.97003e+01 2.09200e+00 498 2005 1 1.69026e+01 1.56322e+00 421 2005 2 1.68245e+01 1.05798e+00 439 2005 3 1.72297e+01 1.15978e+00 468 2005 4 1.99194e+01 1.02392e+00 629 2005 5 2.40261e+01 1.94510e+00 796 2005 6 2.75368e+01 1.34032e+00 573 2005 7 2.93300e+01 1.29291e+00 627 2005 8 2.96933e+01 1.74205e+00 572 2005 9 2.82450e+01 1.39859e+00 709 2005 10 2.67705e+01 9.72551e-01 725 2005 11 2.30264e+01 1.26245e+00 677 2005 12 1.89674e+01 1.95072e+00 567 2006 1 1.78966e+01 7.75052e-01 444 2006 2 1.69163e+01 7.70164e-01 484 2006 3 1.86500e+01 5.72832e-01 669 2006 4 2.17735e+01 2.03520e+00 698 2006 5 2.40287e+01 1.28565e+00 854 2006 6 2.70943e+01 1.78326e+00 805 2006 7 2.93851e+01 1.09448e+00 593 2006 8 2.98890e+01 1.23352e+00 767 2006 9 2.99121e+01 8.39172e-01 566 2006 10 2.73094e+01 1.57635e+00 720 2006 11 2.19942e+01 2.26580e+00 715 2006 12 1.93075e+01 8.29659e-01 426 2007 1 1.82502e+01 1.44914e+00 405 2007 2 1.72005e+01 9.75267e-01 436 2007 3 1.82166e+01 9.60080e-01 610 2007 4 2.02105e+01 1.14073e+00 487 2007 5 2.26808e+01 9.73154e-01 839 2007 6 2.63264e+01 1.54894e+00 649 2007 7 2.90814e+01 1.37116e+00 526 2007 8 2.95865e+01 1.44320e+00 766 2007 9 2.91168e+01 1.13897e+00 547 2007 10 2.73805e+01 1.00297e+00 535 2007 11 2.31992e+01 9.97424e-01 856 2007 12 2.12918e+01 9.03959e-01 509 2008 1 1.84942e+01 1.22981e+00 489 2008 2 1.83228e+01 9.63211e-01 552 2008 3 1.86211e+01 8.90480e-01 595 2008 4 2.05050e+01 1.23534e+00 752 2008 5 2.39465e+01 1.63860e+00 729 2008 6 2.79150e+01 9.57570e-01 707 2008 7 2.87953e+01 1.51889e+00 530 2008 8 2.80617e+01 1.17602e+00 450 2008 9 2.81609e+01 7.15475e-01 569 2008 10 2.59728e+01 1.18311e+00 772 2008 11 2.18037e+01 1.38683e+00 623 2008 12 1.88763e+01 8.60396e-01 494 2009 1 1.80347e+01 1.36277e+00 658 2009 2 1.69152e+01 8.86663e-01 606 2009 3 1.84050e+01 1.29481e+00 622 2009 4 2.04921e+01 1.54784e+00 521 2009 5 2.46134e+01 1.32393e+00 652 2009 6 2.72674e+01 1.21711e+00 764 2009 7 2.82915e+01 1.09502e+00 566 2009 8 2.93793e+01 8.57140e-01 491 2009 9 2.82965e+01 8.88335e-01 453 2009 10 2.67833e+01 1.68583e+00 636 2009 11 2.25340e+01 1.40370e+00 454 2009 12 1.82618e+01 1.52333e+00 194 2010 1 1.63458e+01 1.72490e+00 488 2010 2 1.47156e+01 1.29514e+00 474 2010 3 1.57552e+01 1.08996e+00 539 2010 4 1.96624e+01 1.55563e+00 497 2010 5 2.57913e+01 2.35314e+00 796 2010 6 2.96744e+01 1.46655e+00 688 2010 7 2.91569e+01 1.14325e+00 597 2010 8 2.96075e+01 1.22990e+00 420 2010 9 2.88847e+01 1.22225e+00 656 2010 10 2.59433e+01 1.26577e+00 1024 2010 11 2.25119e+01 1.32115e+00 799 2010 12 1.84968e+01 2.20563e+00 795 2011 1 1.53678e+01 7.45379e-01 560 2011 2 1.60021e+01 1.01631e+00 336 2011 3 1.86273e+01 1.03055e+00 596 2011 4 2.19119e+01 1.38929e+00 783 2011 5 2.48963e+01 1.41775e+00 973 2011 6 2.85708e+01 1.26187e+00 724 2011 7 2.95678e+01 1.04374e+00 450 2011 8 3.00460e+01 1.04970e+00 709 2011 9 2.86005e+01 7.04343e-01 629 2011 10 2.65568e+01 1.24646e+00 739 2011 11 2.25235e+01 8.11622e-01 670 2011 12 1.99562e+01 9.90012e-01 537 2012 1 1.88257e+01 9.13143e-01 693 2012 2 1.80834e+01 1.31580e+00 156 2012 3 2.01134e+01 1.60890e+00 708 2012 4 2.23534e+01 1.22556e+00 847 2012 5 2.54602e+01 1.35663e+00 786 2012 6 2.68561e+01 1.16585e+00 538 2012 7 2.84995e+01 1.47849e+00 470 2012 8 2.88697e+01 1.23866e+00 464 2012 9 2.83840e+01 1.09096e+00 460 2012 10 2.61977e+01 1.40934e+00 695 2012 11 2.12372e+01 1.00844e+00 748 2012 12 2.03266e+01 7.65509e-01 423 2013 1 1.85628e+01 1.02728e+00 433 2013 2 1.85999e+01 1.06448e+00 471 2013 3 1.78294e+01 8.62655e-01 627 2013 4 1.91512e+01 1.34005e+00 475 2013 5 2.34319e+01 2.34045e+00 684 2013 6 2.72731e+01 1.69169e+00 692 2013 7 2.78017e+01 1.84210e+00 311 2013 8 2.94985e+01 8.41578e-01 525 2013 9 2.93789e+01 1.06858e+00 652 2013 10 2.72226e+01 8.59977e-01 598 2013 11 2.25301e+01 1.69102e+00 421 2013 12 1.97298e+01 1.23653e+00 460 2014 1 1.75619e+01 1.33811e+00 375 2014 2 1.69074e+01 1.32986e+00 363 2014 3 1.70445e+01 9.95792e-01 507 2014 4 1.97337e+01 1.76233e+00 535 2014 5 2.39522e+01 1.54896e+00 666 2014 6 2.84454e+01 2.02964e+00 534 2014 7 2.88248e+01 9.53744e-01 662 2014 8 2.94845e+01 1.09613e+00 702 2014 9 2.87443e+01 1.46748e+00 305 2014 10 2.68381e+01 9.43670e-01 889 2014 11 2.19524e+01 2.17656e+00 639 2014 12 1.86451e+01 8.28188e-01 568 2015 1 1.71530e+01 9.82541e-01 432 2015 2 1.74047e+01 1.06203e+00 578 2015 3 1.85598e+01 1.08652e+00 357 2015 4 2.15165e+01 1.38686e+00 341 2015 5 2.52185e+01 1.56400e+00 875 2015 6 2.87259e+01 1.40610e+00 613 2015 7 2.86644e+01 1.60001e+00 570 2015 8 3.00579e+01 1.06240e+00 536 2015 9 2.85036e+01 8.77988e-01 267 2015 10 2.60964e+01 9.24328e-01 677 2015 11 2.42799e+01 1.27448e+00 544 2015 12 2.20165e+01 9.67912e-01 451 2016 1 1.94022e+01 1.68357e+00 412 2016 2 1.77431e+01 7.87551e-01 621 2016 3 1.85732e+01 9.20074e-01 391 2016 4 2.10577e+01 1.16021e+00 513 2016 5 2.42368e+01 1.21118e+00 664 2016 6 2.82141e+01 1.15672e+00 784 2016 7 3.02479e+01 1.25571e+00 818 2016 8 2.99364e+01 1.40680e+00 607 2016 9 2.89417e+01 8.00535e-01 597 2016 10 2.64282e+01 1.59752e+00 870 2016 11 2.35606e+01 1.35344e+00 760 2016 12 2.08596e+01 1.33136e+00 558 2017 1 1.92329e+01 1.26163e+00 459 2017 2 1.90870e+01 1.05911e+00 569 2017 3 1.99001e+01 1.26030e+00 742 2017 4 2.18323e+01 1.07712e+00 641 2017 5 2.42347e+01 1.15481e+00 604 2017 6 2.76551e+01 1.65872e+00 407 2017 7 2.98206e+01 1.44557e+00 547 2017 8 2.98481e+01 1.35108e+00 509 2017 9 2.87085e+01 1.21815e+00 670 2017 10 2.67107e+01 1.06773e+00 785 2017 11 2.35162e+01 1.08800e+00 833 2017 12 2.04910e+01 1.61929e+00 459 2018 1 1.73365e+01 1.49249e+00 430 2018 2 1.78266e+01 1.31519e+00 282 2018 3 1.91663e+01 9.64334e-01 713 2018 4 2.09185e+01 1.05397e+00 576 2018 5 2.44193e+01 1.98690e+00 630 2018 6 2.80026e+01 1.66583e+00 515 2018 7 2.98595e+01 9.99258e-01 547 2018 8 2.94967e+01 1.05646e+00 393 2018 9 2.97018e+01 8.25021e-01 671 2018 10 2.75403e+01 1.39383e+00 744 2018 11 2.31388e+01 1.99076e+00 341 2018 12 1.86946e+01 2.11589e+00 431 2019 1 1.79446e+01 1.15961e+00 518 2019 2 1.76845e+01 1.40585e+00 231 2019 3 1.85707e+01 1.00111e+00 461 2019 4 2.10838e+01 1.34432e+00 490 2019 5 2.56173e+01 1.88728e+00 969 2019 6 2.85346e+01 1.82218e+00 581 2019 7 2.94904e+01 1.22265e+00 470 2019 8 2.98557e+01 8.86975e-01 403 2019 9 2.93265e+01 8.40541e-01 972 2019 10 2.75068e+01 1.38866e+00 624 2019 11 2.35073e+01 1.57307e+00 537 2019 12 2.04248e+01 1.02722e+00 472 2020 1 1.94636e+01 8.89319e-01 579 2020 2 1.87508e+01 7.37488e-01 447 2020 3 2.12107e+01 2.03437e+00 634 2020 4 2.25148e+01 9.03136e-01 483 2020 5 2.38255e+01 1.35164e+00 801 2020 6 2.85365e+01 1.28526e+00 633 2020 7 2.88970e+01 1.10659e+00 604 2020 8 3.06650e+01 8.85407e-01 448 2020 9 2.89294e+01 1.35580e+00 438 2020 10 2.60982e+01 9.62667e-01 638 2020 11 2.45083e+01 1.19202e+00 816 2020 12 2.04713e+01 1.46060e+00 716 2021 1 1.81624e+01 1.28012e+00 448 2021 2 1.72438e+01 7.83329e-01 412 2021 3 1.80745e+01 1.15030e+00 536 2021 4 2.09912e+01 1.04386e+00 672 2021 5 2.38420e+01 1.36773e+00 812 2021 6 2.68434e+01 1.31356e+00 460 2021 7 2.90671e+01 1.45806e+00 447 2021 8 2.98625e+01 1.06103e+00 470 2021 9 2.85437e+01 8.54807e-01 564 2021 10 2.72075e+01 1.10320e+00 480 2021 11 2.30324e+01 1.48160e+00 710 2021 12 2.04944e+01 5.60848e-01 650 2022 1 1.90021e+01 1.68987e+00 607 2022 2 1.77206e+01 1.24615e+00 613 2022 3 1.97871e+01 6.32064e-01 731 2022 4 2.13320e+01 1.22810e+00 474 2022 5 2.49402e+01 1.38542e+00 681 2022 6 2.88024e+01 1.62623e+00 701 2022 7 3.01157e+01 1.42781e+00 582 2022 8 3.04361e+01 1.25230e+00 481 2022 9 2.94784e+01 1.15837e+00 443 2022 10 2.66793e+01 1.52574e+00 680 2022 11 2.36477e+01 1.00911e+00 419 2022 12 2.10961e+01 1.68967e+00 719 2023 1 1.99929e+01 1.47749e+00 659 2023 2 1.98758e+01 1.06470e+00 645 2023 3 2.12793e+01 7.00249e-01 626 2023 4 2.20839e+01 9.11346e-01 517 2023 5 2.45484e+01 1.48276e+00 721 2023 6 2.67900e+01 1.48338e+00 564 2023 7 2.96238e+01 1.13450e+00 581 2023 8 3.09201e+01 1.12955e+00 735 2023 9 3.05572e+01 1.06795e+00 588 2023 10 2.62263e+01 1.05096e+00 763 2023 11 2.37924e+01 1.29103e+00 566 2023 12 1.88079e+01 1.08663e+00 244 2024 1 1.72347e+01 1.17536e+00 379 2024 2 1.75347e+01 9.35961e-01 510 2024 3 1.86050e+01 8.77070e-01 440 2024 4 1.96199e+01 4.26877e-01 36