YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.88425e+01 3.68697e-02 16 2000 3 2.02241e+01 5.04282e-01 135 2000 4 2.14487e+01 4.37564e-01 144 2000 5 2.49954e+01 1.65260e+00 192 2000 6 2.76413e+01 9.41605e-01 166 2000 7 3.00101e+01 1.74869e+00 85 2000 8 2.94906e+01 7.01138e-01 53 2000 9 2.81222e+01 6.50525e-01 143 2000 10 2.54413e+01 9.04933e-01 256 2000 11 2.37330e+01 1.29805e+00 176 2000 12 2.00188e+01 1.40654e+00 134 2001 1 1.83951e+01 7.13869e-01 99 2001 2 1.77237e+01 8.23536e-01 144 2001 3 1.80858e+01 1.90413e+00 98 2001 4 1.99282e+01 1.83887e+00 144 2001 5 2.39909e+01 1.13298e+00 249 2001 6 2.58893e+01 9.14889e-01 48 2001 7 2.84422e+01 9.40819e-01 78 2001 8 2.80862e+01 5.52985e-01 160 2001 9 2.87201e+01 8.33795e-01 160 2001 10 2.50298e+01 1.71115e+00 240 2001 11 2.31523e+01 4.80359e-01 211 2001 12 2.27271e+01 1.21349e+00 150 2002 1 1.98951e+01 8.17981e-01 95 2002 2 1.89649e+01 9.04097e-01 64 2002 3 1.91765e+01 7.15218e-01 47 2002 4 2.21496e+01 1.65540e+00 144 2002 5 2.55285e+01 9.03924e-01 196 2002 6 2.68516e+01 6.04533e-01 180 2002 7 2.89456e+01 1.40207e+00 584 2002 8 2.90604e+01 1.03269e+00 556 2002 9 2.84029e+01 1.19849e+00 481 2002 10 2.77114e+01 1.31303e+00 578 2002 11 2.39826e+01 2.01445e+00 503 2002 12 2.03228e+01 1.52427e+00 461 2003 1 1.79490e+01 1.29147e+00 656 2003 2 1.74746e+01 8.70035e-01 279 2003 3 1.89655e+01 1.22745e+00 271 2003 4 2.03224e+01 1.50067e+00 573 2003 5 2.51425e+01 1.47388e+00 518 2003 6 2.78247e+01 1.41294e+00 478 2003 7 2.87280e+01 1.04630e+00 446 2003 8 2.87792e+01 1.10669e+00 553 2003 9 2.85660e+01 7.10583e-01 551 2003 10 2.57854e+01 9.39159e-01 711 2003 11 2.42951e+01 9.82187e-01 813 2003 12 2.03422e+01 1.85781e+00 491 2004 1 1.78533e+01 1.58778e+00 434 2004 2 1.72877e+01 1.58768e+00 202 2004 3 1.84111e+01 1.00508e+00 656 2004 4 1.97360e+01 1.22407e+00 590 2004 5 2.43360e+01 1.98095e+00 863 2004 6 2.81466e+01 1.57580e+00 615 2004 7 2.96357e+01 1.03744e+00 618 2004 8 2.94276e+01 1.26219e+00 628 2004 9 2.74858e+01 1.46621e+00 617 2004 10 2.54393e+01 1.07521e+00 569 2004 11 2.35220e+01 1.49536e+00 514 2004 12 2.07067e+01 1.13612e+00 448 2005 1 1.89973e+01 1.38394e+00 491 2005 2 1.79905e+01 9.30275e-01 307 2005 3 1.83848e+01 9.24980e-01 391 2005 4 2.00411e+01 1.22610e+00 601 2005 5 2.34904e+01 2.02198e+00 692 2005 6 2.73773e+01 1.39741e+00 673 2005 7 2.87176e+01 1.64326e+00 695 2005 8 2.94983e+01 1.43123e+00 477 2005 9 2.86454e+01 1.08843e+00 875 2005 10 2.68202e+01 1.27689e+00 869 2005 11 2.32860e+01 1.45271e+00 578 2005 12 1.98249e+01 1.35684e+00 545 2006 1 1.86315e+01 1.07881e+00 473 2006 2 1.76981e+01 9.15612e-01 409 2006 3 1.90066e+01 1.28908e+00 710 2006 4 2.19330e+01 1.81651e+00 706 2006 5 2.43291e+01 1.54965e+00 739 2006 6 2.80902e+01 1.35753e+00 867 2006 7 2.93879e+01 1.37454e+00 705 2006 8 3.01999e+01 1.32993e+00 711 2006 9 2.95716e+01 9.21983e-01 567 2006 10 2.72071e+01 1.30558e+00 717 2006 11 2.23362e+01 1.96027e+00 671 2006 12 1.99930e+01 1.19801e+00 422 2007 1 1.88663e+01 1.47627e+00 200 2007 2 1.81114e+01 9.48183e-01 386 2007 3 1.83104e+01 1.47905e+00 587 2007 4 2.03938e+01 1.40711e+00 456 2007 5 2.31784e+01 1.01926e+00 828 2007 6 2.69126e+01 1.52934e+00 631 2007 7 2.90195e+01 8.95657e-01 496 2007 8 2.97728e+01 1.36891e+00 745 2007 9 2.88660e+01 1.43394e+00 518 2007 10 2.73419e+01 9.17072e-01 581 2007 11 2.34812e+01 1.18674e+00 863 2007 12 2.08525e+01 1.33336e+00 468 2008 1 1.91680e+01 1.28738e+00 577 2008 2 1.91596e+01 8.58846e-01 584 2008 3 1.87448e+01 8.23927e-01 533 2008 4 2.08709e+01 1.04907e+00 563 2008 5 2.37460e+01 1.50471e+00 769 2008 6 2.86572e+01 1.53317e+00 721 2008 7 2.89850e+01 1.44472e+00 698 2008 8 2.78813e+01 1.40664e+00 506 2008 9 2.76749e+01 9.52808e-01 612 2008 10 2.58846e+01 1.00103e+00 802 2008 11 2.31030e+01 1.35507e+00 813 2008 12 2.05009e+01 9.37951e-01 381 2009 1 1.95348e+01 1.14868e+00 513 2009 2 1.84137e+01 1.07780e+00 527 2009 3 1.94964e+01 1.02373e+00 610 2009 4 2.03947e+01 1.13519e+00 594 2009 5 2.47306e+01 1.50312e+00 675 2009 6 2.74697e+01 1.46072e+00 845 2009 7 2.83330e+01 1.43078e+00 655 2009 8 2.91896e+01 1.04481e+00 542 2009 9 2.83601e+01 8.65993e-01 548 2009 10 2.65320e+01 1.50252e+00 509 2009 11 2.32328e+01 1.16415e+00 478 2009 12 1.88277e+01 1.21793e+00 174 2010 1 1.82839e+01 1.62204e+00 486 2010 2 1.62097e+01 8.20005e-01 369 2010 3 1.68365e+01 1.06134e+00 472 2010 4 1.97564e+01 1.39249e+00 579 2010 5 2.52099e+01 2.33141e+00 748 2010 6 2.98977e+01 1.58780e+00 769 2010 7 2.91238e+01 1.27472e+00 683 2010 8 2.92929e+01 1.45637e+00 464 2010 9 2.91375e+01 9.10121e-01 786 2010 10 2.58207e+01 1.25013e+00 954 2010 11 2.26570e+01 1.03753e+00 633 2010 12 1.96399e+01 1.69403e+00 664 2011 1 1.62922e+01 1.33226e+00 581 2011 2 1.64940e+01 1.24841e+00 372 2011 3 1.91076e+01 7.14669e-01 490 2011 4 2.15369e+01 1.34431e+00 634 2011 5 2.44214e+01 1.46225e+00 883 2011 6 2.88079e+01 1.08306e+00 801 2011 7 2.99293e+01 1.17968e+00 586 2011 8 3.05344e+01 1.01641e+00 796 2011 9 2.84331e+01 7.95154e-01 780 2011 10 2.60808e+01 1.32383e+00 863 2011 11 2.23429e+01 1.13029e+00 605 2011 12 2.05412e+01 1.17680e+00 545 2012 1 1.93724e+01 1.11444e+00 446 2012 2 1.76466e+01 1.81343e+00 64 2012 3 2.08094e+01 1.24145e+00 657 2012 4 2.25711e+01 9.40226e-01 844 2012 5 2.54311e+01 1.62590e+00 879 2012 6 2.69385e+01 7.75021e-01 524 2012 7 2.86124e+01 1.09225e+00 488 2012 8 2.89194e+01 1.05392e+00 455 2012 9 2.76553e+01 9.26183e-01 665 2012 10 2.60780e+01 1.27962e+00 916 2012 11 2.25672e+01 1.11745e+00 674 2012 12 2.12271e+01 1.32081e+00 383 2013 1 1.92180e+01 7.92103e-01 427 2013 2 1.94603e+01 9.68982e-01 396 2013 3 1.84142e+01 6.77586e-01 645 2013 4 1.99835e+01 1.16284e+00 460 2013 5 2.34402e+01 1.98896e+00 713 2013 6 2.75100e+01 1.37683e+00 553 2013 7 2.81858e+01 1.11494e+00 350 2013 8 2.91448e+01 1.32064e+00 608 2013 9 2.93664e+01 9.56127e-01 796 2013 10 2.68956e+01 1.16739e+00 651 2013 11 2.30334e+01 1.63625e+00 474 2013 12 2.10660e+01 1.42281e+00 475 2014 1 1.78832e+01 1.14706e+00 334 2014 2 1.71745e+01 1.17850e+00 332 2014 3 1.77451e+01 8.09837e-01 437 2014 4 1.98740e+01 1.36349e+00 516 2014 5 2.38474e+01 1.49253e+00 600 2014 6 2.80101e+01 1.66734e+00 724 2014 7 2.86576e+01 1.25609e+00 605 2014 8 2.98441e+01 1.02687e+00 656 2014 9 2.96378e+01 1.19518e+00 547 2014 10 2.68960e+01 1.16965e+00 922 2014 11 2.19115e+01 1.62008e+00 671 2014 12 2.09095e+01 1.08593e+00 550 2015 1 1.94945e+01 1.51781e+00 372 2015 2 1.84488e+01 9.52367e-01 473 2015 3 1.89915e+01 1.50565e+00 403 2015 4 2.20853e+01 1.36601e+00 357 2015 5 2.54247e+01 1.78688e+00 819 2015 6 2.86328e+01 1.20712e+00 712 2015 7 2.90157e+01 1.41598e+00 661 2015 8 2.96059e+01 1.16726e+00 819 2015 9 2.89221e+01 9.69206e-01 541 2015 10 2.61964e+01 7.38566e-01 662 2015 11 2.44795e+01 1.56406e+00 650 2015 12 2.17166e+01 1.19071e+00 480 2016 1 1.96804e+01 1.70201e+00 387 2016 2 1.83342e+01 9.86807e-01 560 2016 3 1.87475e+01 1.07427e+00 377 2016 4 2.08188e+01 1.37503e+00 528 2016 5 2.45391e+01 1.49798e+00 599 2016 6 2.82919e+01 1.46959e+00 720 2016 7 3.04268e+01 1.24768e+00 722 2016 8 2.97359e+01 9.88371e-01 530 2016 9 2.93539e+01 7.74513e-01 694 2016 10 2.69540e+01 1.31104e+00 824 2016 11 2.44687e+01 1.30484e+00 666 2016 12 2.16877e+01 1.20397e+00 622 2017 1 2.07195e+01 1.17331e+00 566 2017 2 1.95282e+01 1.01364e+00 532 2017 3 1.98109e+01 1.14419e+00 654 2017 4 2.18307e+01 9.13580e-01 649 2017 5 2.45364e+01 1.32653e+00 594 2017 6 2.71674e+01 1.13887e+00 365 2017 7 2.93547e+01 1.32099e+00 598 2017 8 2.98883e+01 1.59169e+00 542 2017 9 2.80028e+01 1.16290e+00 625 2017 10 2.68009e+01 8.35520e-01 832 2017 11 2.35604e+01 1.28319e+00 781 2017 12 2.11997e+01 1.28172e+00 364 2018 1 1.87771e+01 8.09593e-01 518 2018 2 2.00364e+01 1.59670e+00 460 2018 3 2.03956e+01 1.18408e+00 690 2018 4 2.09397e+01 6.98780e-01 646 2018 5 2.49493e+01 1.90554e+00 770 2018 6 2.85867e+01 1.77596e+00 565 2018 7 2.93719e+01 1.33825e+00 640 2018 8 2.89760e+01 1.47745e+00 536 2018 9 2.95967e+01 1.22221e+00 702 2018 10 2.76452e+01 1.77656e+00 877 2018 11 2.34894e+01 1.57323e+00 348 2018 12 2.08409e+01 1.40029e+00 336 2019 1 1.86494e+01 1.51028e+00 537 2019 2 1.86250e+01 8.93857e-01 194 2019 3 1.88098e+01 7.95981e-01 542 2019 4 2.06238e+01 1.52902e+00 481 2019 5 2.56428e+01 1.96872e+00 876 2019 6 2.86729e+01 1.42366e+00 503 2019 7 2.95542e+01 1.21699e+00 563 2019 8 2.98931e+01 1.01853e+00 562 2019 9 2.94560e+01 9.12853e-01 923 2019 10 2.82400e+01 1.21816e+00 674 2019 11 2.37467e+01 1.86492e+00 614 2019 12 2.12575e+01 1.28794e+00 297 2020 1 2.04590e+01 1.27977e+00 517 2020 2 1.95467e+01 7.68765e-01 422 2020 3 2.11087e+01 2.34484e+00 587 2020 4 2.26966e+01 8.28228e-01 472 2020 5 2.37493e+01 1.45756e+00 729 2020 6 2.79331e+01 1.19373e+00 553 2020 7 2.90982e+01 1.03862e+00 515 2020 8 3.00990e+01 8.05200e-01 466 2020 9 2.89807e+01 1.59165e+00 489 2020 10 2.57011e+01 7.30094e-01 659 2020 11 2.43195e+01 1.07394e+00 832 2020 12 2.10044e+01 1.55313e+00 712 2021 1 1.94489e+01 1.36593e+00 432 2021 2 1.84150e+01 8.91350e-01 448 2021 3 1.91997e+01 1.15263e+00 467 2021 4 2.08629e+01 7.07596e-01 615 2021 5 2.37181e+01 1.20055e+00 663 2021 6 2.69937e+01 1.38173e+00 345 2021 7 2.92733e+01 1.08466e+00 534 2021 8 3.01710e+01 9.37469e-01 493 2021 9 2.82690e+01 7.92046e-01 550 2021 10 2.70889e+01 1.08358e+00 456 2021 11 2.29690e+01 1.06499e+00 709 2021 12 2.13529e+01 6.98256e-01 586 2022 1 2.02276e+01 1.27978e+00 562 2022 2 1.93688e+01 7.67520e-01 518 2022 3 1.97108e+01 6.35316e-01 742 2022 4 2.14312e+01 8.52487e-01 418 2022 5 2.51204e+01 9.97024e-01 671 2022 6 2.86601e+01 1.58669e+00 756 2022 7 2.99145e+01 9.67652e-01 567 2022 8 3.05590e+01 8.03594e-01 500 2022 9 2.93762e+01 8.92036e-01 612 2022 10 2.60331e+01 1.39366e+00 724 2022 11 2.36586e+01 1.32002e+00 470 2022 12 2.23861e+01 1.46520e+00 627 2023 1 2.10576e+01 9.46349e-01 689 2023 2 2.01470e+01 8.54559e-01 533 2023 3 2.11185e+01 7.67114e-01 633 2023 4 2.19710e+01 7.17924e-01 477 2023 5 2.42509e+01 1.65594e+00 581 2023 6 2.70953e+01 1.71745e+00 617 2023 7 2.98781e+01 1.35670e+00 640 2023 8 3.10406e+01 1.02977e+00 741 2023 9 3.04172e+01 8.41523e-01 592 2023 10 2.61243e+01 1.92297e+00 752 2023 11 2.33635e+01 1.12859e+00 511 2023 12 2.04861e+01 1.20252e+00 361 2024 1 1.88917e+01 1.31565e+00 301 2024 2 1.81710e+01 1.08911e+00 460 2024 3 1.97413e+01 1.15153e+00 385 2024 4 2.10500e+01 3.53231e-01 32