YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.80537e+01 1.52583e-02 16 2000 3 1.95197e+01 7.07182e-01 181 2000 4 2.17390e+01 5.02411e-01 160 2000 5 2.51439e+01 1.47111e+00 189 2000 6 2.74139e+01 1.36647e+00 123 2000 7 2.95382e+01 6.94847e-01 84 2000 8 2.89081e+01 7.74238e-01 70 2000 9 2.75264e+01 7.60467e-01 112 2000 10 2.43374e+01 1.05580e+00 212 2000 11 2.16444e+01 2.14672e+00 160 2000 12 1.62653e+01 1.25336e+00 102 2001 1 1.57478e+01 5.63245e-01 69 2001 2 1.71137e+01 1.02254e+00 68 2001 3 1.75887e+01 2.16672e+00 114 2001 4 1.95618e+01 1.55435e+00 104 2001 5 2.39323e+01 1.11383e+00 256 2001 6 2.64855e+01 1.60805e+00 47 2001 7 2.73345e+01 1.01134e+00 68 2001 8 2.77828e+01 8.22859e-01 149 2001 9 2.84315e+01 1.52024e+00 154 2001 10 2.38652e+01 1.59770e+00 238 2001 11 2.12632e+01 5.23489e-01 208 2001 12 2.07154e+01 1.17946e+00 208 2002 1 1.54216e+01 5.74998e-01 64 2002 2 1.57326e+01 6.27360e-01 64 2002 3 1.69566e+01 1.52249e+00 47 2002 4 2.20576e+01 2.06459e+00 143 2002 5 2.59177e+01 9.36068e-01 181 2002 6 2.71634e+01 1.05170e+00 176 2002 7 2.93896e+01 8.31641e-01 450 2002 8 2.91122e+01 8.38503e-01 599 2002 9 2.87172e+01 7.80355e-01 381 2002 10 2.74013e+01 1.35724e+00 590 2002 11 2.22412e+01 2.27022e+00 513 2002 12 1.71185e+01 1.13117e+00 416 2003 1 1.59230e+01 1.14268e+00 590 2003 2 1.62939e+01 1.01211e+00 329 2003 3 1.91096e+01 1.37608e+00 298 2003 4 2.03246e+01 1.79151e+00 608 2003 5 2.52789e+01 1.43831e+00 583 2003 6 2.78908e+01 2.06426e+00 416 2003 7 2.93018e+01 9.66500e-01 420 2003 8 2.86332e+01 1.21474e+00 491 2003 9 2.85582e+01 8.65285e-01 557 2003 10 2.48820e+01 1.18372e+00 601 2003 11 2.28385e+01 1.15399e+00 792 2003 12 1.78048e+01 1.46642e+00 439 2004 1 1.56204e+01 1.26356e+00 380 2004 2 1.51242e+01 7.83768e-01 192 2004 3 1.80427e+01 1.41643e+00 597 2004 4 1.98525e+01 1.22311e+00 612 2004 5 2.47944e+01 1.72084e+00 790 2004 6 2.79497e+01 1.23149e+00 608 2004 7 2.86337e+01 1.50583e+00 584 2004 8 2.91516e+01 1.18590e+00 644 2004 9 2.73906e+01 1.45586e+00 490 2004 10 2.51160e+01 1.31983e+00 771 2004 11 2.27907e+01 1.80686e+00 549 2004 12 1.81185e+01 1.74423e+00 393 2005 1 1.60788e+01 1.29213e+00 353 2005 2 1.58377e+01 7.17927e-01 281 2005 3 1.70344e+01 1.22680e+00 438 2005 4 2.00932e+01 1.20947e+00 654 2005 5 2.37565e+01 2.12969e+00 730 2005 6 2.72291e+01 1.34227e+00 717 2005 7 2.90359e+01 1.48100e+00 612 2005 8 2.92048e+01 1.47553e+00 488 2005 9 2.84298e+01 1.27952e+00 834 2005 10 2.62199e+01 1.51820e+00 884 2005 11 2.15346e+01 1.32038e+00 556 2005 12 1.66441e+01 1.50439e+00 503 2006 1 1.59021e+01 1.17270e+00 381 2006 2 1.55201e+01 1.03437e+00 375 2006 3 1.81316e+01 1.13627e+00 597 2006 4 2.19617e+01 1.83015e+00 633 2006 5 2.43560e+01 1.20083e+00 657 2006 6 2.77480e+01 1.42232e+00 708 2006 7 2.94193e+01 1.29211e+00 595 2006 8 2.97667e+01 1.29161e+00 720 2006 9 2.87467e+01 9.33195e-01 714 2006 10 2.60401e+01 1.88287e+00 694 2006 11 2.04911e+01 1.57339e+00 670 2006 12 1.71194e+01 1.18190e+00 323 2007 1 1.60228e+01 1.37623e+00 165 2007 2 1.49673e+01 9.39123e-01 353 2007 3 1.81756e+01 1.50877e+00 657 2007 4 1.99706e+01 1.25859e+00 488 2007 5 2.31979e+01 1.03321e+00 834 2007 6 2.67801e+01 1.36180e+00 641 2007 7 2.82746e+01 1.43848e+00 522 2007 8 2.97194e+01 1.24863e+00 689 2007 9 2.89554e+01 1.14093e+00 661 2007 10 2.64773e+01 1.37440e+00 524 2007 11 2.17973e+01 1.28813e+00 729 2007 12 1.89380e+01 1.18434e+00 443 2008 1 1.67501e+01 1.59629e+00 453 2008 2 1.69722e+01 1.22703e+00 466 2008 3 1.78282e+01 1.37316e+00 538 2008 4 2.11082e+01 1.51250e+00 601 2008 5 2.41904e+01 1.49053e+00 677 2008 6 2.82415e+01 1.40121e+00 659 2008 7 2.83033e+01 1.07695e+00 589 2008 8 2.73034e+01 2.05276e+00 412 2008 9 2.77650e+01 1.12973e+00 559 2008 10 2.50081e+01 1.41693e+00 798 2008 11 2.03006e+01 1.48680e+00 657 2008 12 1.73340e+01 1.16992e+00 345 2009 1 1.65898e+01 1.48803e+00 493 2009 2 1.55467e+01 8.15218e-01 479 2009 3 1.80320e+01 1.84479e+00 560 2009 4 2.10448e+01 1.66364e+00 638 2009 5 2.49115e+01 1.43561e+00 641 2009 6 2.66471e+01 1.56359e+00 804 2009 7 2.77039e+01 1.48512e+00 729 2009 8 2.90641e+01 8.92379e-01 604 2009 9 2.84117e+01 1.00198e+00 509 2009 10 2.56106e+01 2.16086e+00 572 2009 11 2.12613e+01 1.80716e+00 472 2009 12 1.61721e+01 1.02671e+00 199 2010 1 1.40082e+01 1.56837e+00 465 2010 2 1.43030e+01 1.60831e+00 409 2010 3 1.64583e+01 7.69637e-01 476 2010 4 2.07136e+01 1.27162e+00 569 2010 5 2.55318e+01 2.05122e+00 695 2010 6 2.98735e+01 1.12441e+00 824 2010 7 2.92585e+01 1.25555e+00 658 2010 8 2.92729e+01 1.30487e+00 483 2010 9 2.91533e+01 1.00680e+00 814 2010 10 2.51917e+01 1.17863e+00 942 2010 11 2.15434e+01 1.25368e+00 622 2010 12 1.69589e+01 2.24009e+00 724 2011 1 1.33500e+01 9.88065e-01 522 2011 2 1.39966e+01 1.58290e+00 261 2011 3 1.87857e+01 1.57763e+00 535 2011 4 2.22805e+01 1.45970e+00 638 2011 5 2.46856e+01 1.56360e+00 951 2011 6 2.84600e+01 1.45646e+00 777 2011 7 2.95083e+01 9.02123e-01 530 2011 8 2.93547e+01 1.57283e+00 718 2011 9 2.80619e+01 7.13848e-01 772 2011 10 2.49901e+01 1.57264e+00 820 2011 11 2.07576e+01 1.21430e+00 562 2011 12 1.73075e+01 1.05063e+00 442 2012 1 1.64326e+01 9.23289e-01 422 2012 2 1.67520e+01 1.30207e+00 165 2012 3 2.06631e+01 1.72628e+00 565 2012 4 2.27110e+01 9.11285e-01 780 2012 5 2.59427e+01 1.16798e+00 812 2012 6 2.67278e+01 7.52807e-01 521 2012 7 2.81463e+01 1.14807e+00 564 2012 8 2.85916e+01 9.00527e-01 432 2012 9 2.73052e+01 1.42739e+00 663 2012 10 2.55867e+01 1.21425e+00 883 2012 11 2.07494e+01 1.22027e+00 673 2012 12 1.88832e+01 1.54034e+00 434 2013 1 1.78256e+01 1.26274e+00 388 2013 2 1.77073e+01 7.69806e-01 359 2013 3 1.70912e+01 1.08212e+00 678 2013 4 2.03893e+01 1.28825e+00 410 2013 5 2.35675e+01 1.78604e+00 630 2013 6 2.74833e+01 1.17589e+00 586 2013 7 2.78210e+01 8.30038e-01 250 2013 8 2.90629e+01 1.44551e+00 546 2013 9 2.92680e+01 1.51426e+00 715 2013 10 2.62403e+01 1.15393e+00 625 2013 11 2.15749e+01 2.03964e+00 495 2013 12 1.79647e+01 1.42085e+00 412 2014 1 1.48517e+01 1.10924e+00 343 2014 2 1.49147e+01 1.79436e+00 296 2014 3 1.69129e+01 1.28001e+00 516 2014 4 2.01472e+01 1.75513e+00 567 2014 5 2.43491e+01 1.46563e+00 644 2014 6 2.79025e+01 1.20853e+00 655 2014 7 2.76591e+01 1.16130e+00 715 2014 8 2.91560e+01 1.05932e+00 657 2014 9 2.95248e+01 8.84841e-01 465 2014 10 2.62766e+01 1.19433e+00 970 2014 11 2.07927e+01 2.01355e+00 534 2014 12 1.76116e+01 8.22993e-01 471 2015 1 1.59156e+01 1.34526e+00 448 2015 2 1.54443e+01 7.45614e-01 476 2015 3 1.83494e+01 1.74285e+00 406 2015 4 2.17536e+01 2.02191e+00 354 2015 5 2.55959e+01 1.80911e+00 883 2015 6 2.88789e+01 1.27253e+00 714 2015 7 2.85539e+01 1.22892e+00 557 2015 8 2.95112e+01 9.59170e-01 717 2015 9 2.84874e+01 1.00609e+00 550 2015 10 2.51948e+01 1.12355e+00 699 2015 11 2.26785e+01 1.92497e+00 631 2015 12 1.96486e+01 6.14755e-01 369 2016 1 1.72307e+01 1.62276e+00 398 2016 2 1.61998e+01 1.23682e+00 566 2016 3 1.85438e+01 1.42283e+00 485 2016 4 2.12676e+01 1.78166e+00 558 2016 5 2.40552e+01 1.79267e+00 526 2016 6 2.78287e+01 1.52963e+00 708 2016 7 3.00640e+01 1.14731e+00 731 2016 8 2.98792e+01 1.16398e+00 522 2016 9 2.93093e+01 8.44296e-01 732 2016 10 2.62909e+01 1.14595e+00 746 2016 11 2.29413e+01 1.53630e+00 623 2016 12 1.89280e+01 1.18738e+00 480 2017 1 1.79402e+01 9.44351e-01 386 2017 2 1.85568e+01 1.13485e+00 594 2017 3 1.91671e+01 1.41241e+00 629 2017 4 2.23991e+01 1.49301e+00 620 2017 5 2.46767e+01 1.25259e+00 569 2017 6 2.72498e+01 1.23276e+00 349 2017 7 2.95397e+01 1.19894e+00 632 2017 8 2.96093e+01 1.47238e+00 504 2017 9 2.80684e+01 9.47135e-01 594 2017 10 2.60697e+01 1.32523e+00 794 2017 11 2.25299e+01 1.13805e+00 776 2017 12 1.78106e+01 1.28921e+00 289 2018 1 1.44692e+01 8.91354e-01 462 2018 2 1.86411e+01 2.55834e+00 407 2018 3 1.97187e+01 1.41881e+00 710 2018 4 2.08526e+01 9.89641e-01 616 2018 5 2.51122e+01 1.82363e+00 712 2018 6 2.85010e+01 1.29688e+00 544 2018 7 2.89966e+01 1.13426e+00 615 2018 8 2.88412e+01 1.35395e+00 538 2018 9 2.98114e+01 9.66071e-01 655 2018 10 2.74251e+01 1.84060e+00 899 2018 11 2.15369e+01 1.76117e+00 262 2018 12 1.77878e+01 1.62285e+00 312 2019 1 1.69643e+01 1.28360e+00 488 2019 2 1.73864e+01 1.69765e+00 231 2019 3 1.85221e+01 9.15200e-01 542 2019 4 2.11936e+01 1.41303e+00 496 2019 5 2.65839e+01 2.07495e+00 834 2019 6 2.85381e+01 1.57472e+00 498 2019 7 2.96478e+01 9.89953e-01 577 2019 8 2.97562e+01 1.09840e+00 568 2019 9 2.93663e+01 9.20879e-01 809 2019 10 2.82550e+01 1.76128e+00 634 2019 11 2.14671e+01 2.05950e+00 664 2019 12 1.77734e+01 1.21766e+00 394 2020 1 1.75185e+01 8.67882e-01 562 2020 2 1.69530e+01 1.00739e+00 461 2020 3 2.15110e+01 3.17586e+00 518 2020 4 2.20347e+01 1.05518e+00 525 2020 5 2.36936e+01 1.54424e+00 711 2020 6 2.81679e+01 1.13955e+00 520 2020 7 2.82091e+01 1.11523e+00 446 2020 8 3.00789e+01 7.80431e-01 416 2020 9 2.84582e+01 1.92431e+00 493 2020 10 2.53577e+01 8.81411e-01 652 2020 11 2.30543e+01 1.37283e+00 747 2020 12 1.81476e+01 1.77582e+00 701 2021 1 1.55236e+01 1.06760e+00 459 2021 2 1.58939e+01 1.03480e+00 384 2021 3 1.82004e+01 1.29507e+00 428 2021 4 2.05700e+01 1.02106e+00 544 2021 5 2.43067e+01 1.37426e+00 564 2021 6 2.69335e+01 1.15574e+00 431 2021 7 2.94777e+01 1.08151e+00 484 2021 8 3.00641e+01 8.92177e-01 477 2021 9 2.84628e+01 1.10869e+00 524 2021 10 2.65328e+01 1.16024e+00 492 2021 11 2.12064e+01 1.66471e+00 843 2021 12 1.87029e+01 7.45030e-01 559 2022 1 1.69207e+01 1.98661e+00 570 2022 2 1.62398e+01 1.41666e+00 457 2022 3 1.87969e+01 1.09457e+00 744 2022 4 2.16523e+01 1.13620e+00 433 2022 5 2.55433e+01 1.01910e+00 688 2022 6 2.88392e+01 1.39866e+00 661 2022 7 3.00501e+01 1.03996e+00 612 2022 8 3.04604e+01 1.14708e+00 568 2022 9 2.89704e+01 1.06287e+00 688 2022 10 2.52854e+01 1.61734e+00 806 2022 11 2.16770e+01 1.87123e+00 466 2022 12 1.89168e+01 1.75593e+00 653 2023 1 1.78740e+01 1.02068e+00 588 2023 2 1.80894e+01 1.44164e+00 533 2023 3 2.10026e+01 1.10144e+00 632 2023 4 2.21687e+01 7.72786e-01 613 2023 5 2.46214e+01 1.88027e+00 512 2023 6 2.70661e+01 1.55786e+00 567 2023 7 2.91069e+01 1.40640e+00 623 2023 8 3.07009e+01 8.68923e-01 694 2023 9 2.99796e+01 9.31191e-01 674 2023 10 2.51588e+01 1.68354e+00 735 2023 11 2.17870e+01 1.52081e+00 518 2023 12 1.65588e+01 1.26748e+00 456 2024 1 1.48220e+01 9.28428e-01 362 2024 2 1.59499e+01 9.87693e-01 469 2024 3 1.89787e+01 1.25697e+00 416 2024 4 2.09514e+01 5.73730e-01 48