YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.79141e+01 2.52005e-02 16 2000 3 1.97513e+01 7.56711e-01 188 2000 4 2.20789e+01 8.24543e-01 124 2000 5 2.51613e+01 1.91075e+00 190 2000 6 2.78430e+01 1.18100e+00 112 2000 7 2.96381e+01 7.21159e-01 140 2000 8 2.93273e+01 4.23509e-01 48 2000 9 2.75556e+01 8.88845e-01 96 2000 10 2.37265e+01 1.10613e+00 221 2000 11 2.11346e+01 2.46768e+00 96 2000 12 1.60546e+01 1.34898e+00 91 2001 1 1.45833e+01 1.32323e+00 71 2001 2 1.70427e+01 5.23396e-01 64 2001 3 1.82675e+01 1.40103e+00 96 2001 4 2.07088e+01 1.93846e+00 144 2001 5 2.40210e+01 1.05213e+00 240 2001 6 2.68806e+01 1.31747e+00 51 2001 7 2.74254e+01 6.84269e-01 71 2001 8 2.82054e+01 8.63811e-01 112 2001 9 2.86256e+01 1.07885e+00 125 2001 10 2.38821e+01 1.55506e+00 235 2001 11 2.07529e+01 8.30086e-01 238 2001 12 2.09420e+01 1.09391e+00 141 2002 1 1.54989e+01 4.24456e-01 40 2002 2 1.60151e+01 5.52791e-01 65 2002 3 1.64176e+01 1.87587e+00 62 2002 4 2.28051e+01 1.83132e+00 134 2002 5 2.61858e+01 8.81803e-01 160 2002 6 2.72284e+01 1.24080e+00 141 2002 7 2.89302e+01 1.39944e+00 453 2002 8 2.90257e+01 1.37620e+00 537 2002 9 2.87601e+01 7.40644e-01 349 2002 10 2.77120e+01 1.36239e+00 563 2002 11 2.21078e+01 2.26786e+00 520 2002 12 1.64444e+01 1.46971e+00 375 2003 1 1.55017e+01 1.00524e+00 518 2003 2 1.58736e+01 1.28969e+00 286 2003 3 1.92409e+01 1.75276e+00 252 2003 4 2.05318e+01 1.76999e+00 595 2003 5 2.54516e+01 1.30903e+00 586 2003 6 2.80269e+01 1.42505e+00 371 2003 7 2.92762e+01 1.14255e+00 438 2003 8 2.84814e+01 1.15403e+00 515 2003 9 2.83548e+01 1.02484e+00 553 2003 10 2.48328e+01 9.14436e-01 683 2003 11 2.25588e+01 1.29992e+00 753 2003 12 1.72321e+01 1.43605e+00 404 2004 1 1.55476e+01 1.02650e+00 277 2004 2 1.52405e+01 7.73202e-01 208 2004 3 1.79723e+01 1.80933e+00 621 2004 4 2.00845e+01 1.23814e+00 549 2004 5 2.49271e+01 1.68249e+00 861 2004 6 2.83918e+01 1.30472e+00 641 2004 7 2.90304e+01 1.19238e+00 516 2004 8 2.91518e+01 1.29464e+00 702 2004 9 2.77028e+01 1.40937e+00 540 2004 10 2.53368e+01 1.34602e+00 602 2004 11 2.28825e+01 2.17141e+00 577 2004 12 1.74978e+01 1.83774e+00 321 2005 1 1.58063e+01 1.36897e+00 265 2005 2 1.55324e+01 7.70023e-01 308 2005 3 1.67912e+01 1.37259e+00 398 2005 4 2.02126e+01 1.18721e+00 571 2005 5 2.40365e+01 2.27689e+00 778 2005 6 2.72632e+01 1.51539e+00 659 2005 7 2.90807e+01 1.39660e+00 618 2005 8 2.95309e+01 1.38958e+00 576 2005 9 2.82589e+01 1.16364e+00 813 2005 10 2.59171e+01 1.79707e+00 818 2005 11 2.14797e+01 1.34163e+00 518 2005 12 1.62359e+01 1.77615e+00 434 2006 1 1.65860e+01 1.01942e+00 407 2006 2 1.58867e+01 1.03847e+00 375 2006 3 1.82180e+01 1.07074e+00 672 2006 4 2.23833e+01 2.08911e+00 704 2006 5 2.44102e+01 1.61914e+00 793 2006 6 2.76722e+01 1.71970e+00 837 2006 7 2.98894e+01 9.39682e-01 590 2006 8 3.00059e+01 1.09342e+00 609 2006 9 2.88058e+01 9.71108e-01 683 2006 10 2.57880e+01 1.90696e+00 675 2006 11 1.99741e+01 1.51549e+00 599 2006 12 1.70432e+01 1.20247e+00 328 2007 1 1.62192e+01 1.18126e+00 170 2007 2 1.44988e+01 9.09268e-01 416 2007 3 1.81588e+01 1.42998e+00 649 2007 4 1.98308e+01 1.44301e+00 551 2007 5 2.33416e+01 1.11248e+00 858 2007 6 2.70815e+01 1.52038e+00 640 2007 7 2.86626e+01 1.17011e+00 502 2007 8 2.98828e+01 1.24642e+00 693 2007 9 2.90862e+01 1.32736e+00 568 2007 10 2.64443e+01 1.30243e+00 437 2007 11 2.14490e+01 1.43252e+00 755 2007 12 1.87032e+01 1.42798e+00 320 2008 1 1.58942e+01 1.53240e+00 383 2008 2 1.68340e+01 1.14904e+00 373 2008 3 1.78406e+01 1.31109e+00 633 2008 4 2.12106e+01 1.22645e+00 580 2008 5 2.41656e+01 1.68759e+00 669 2008 6 2.83492e+01 1.30080e+00 620 2008 7 2.85348e+01 1.23234e+00 496 2008 8 2.80046e+01 1.28490e+00 386 2008 9 2.78909e+01 1.00152e+00 595 2008 10 2.46479e+01 1.50441e+00 795 2008 11 1.97244e+01 1.50284e+00 545 2008 12 1.70574e+01 1.03554e+00 327 2009 1 1.68953e+01 1.46686e+00 510 2009 2 1.52273e+01 8.47595e-01 467 2009 3 1.81650e+01 1.76509e+00 554 2009 4 2.10698e+01 1.66043e+00 633 2009 5 2.48820e+01 1.47481e+00 598 2009 6 2.67373e+01 1.38565e+00 781 2009 7 2.80456e+01 1.36586e+00 567 2009 8 2.93303e+01 8.27055e-01 508 2009 9 2.83601e+01 8.86316e-01 510 2009 10 2.59685e+01 2.09331e+00 627 2009 11 2.12989e+01 1.81008e+00 435 2009 12 1.63108e+01 1.31617e+00 128 2010 1 1.40513e+01 1.43281e+00 487 2010 2 1.39479e+01 1.21941e+00 418 2010 3 1.64170e+01 1.12826e+00 482 2010 4 2.07091e+01 1.62940e+00 619 2010 5 2.57931e+01 2.15041e+00 725 2010 6 2.96676e+01 1.31476e+00 781 2010 7 2.90185e+01 1.20618e+00 614 2010 8 2.94939e+01 1.02966e+00 390 2010 9 2.91301e+01 9.50971e-01 856 2010 10 2.52355e+01 1.17868e+00 995 2010 11 2.12709e+01 1.41349e+00 770 2010 12 1.63899e+01 2.19312e+00 538 2011 1 1.26946e+01 6.16987e-01 481 2011 2 1.43259e+01 1.94079e+00 256 2011 3 1.90685e+01 1.35128e+00 491 2011 4 2.24038e+01 1.42402e+00 751 2011 5 2.47681e+01 1.67996e+00 1002 2011 6 2.87386e+01 1.19865e+00 736 2011 7 2.91860e+01 1.24547e+00 500 2011 8 2.98012e+01 1.37097e+00 682 2011 9 2.81148e+01 5.84797e-01 810 2011 10 2.48081e+01 1.71069e+00 738 2011 11 2.02402e+01 9.75259e-01 536 2011 12 1.69863e+01 9.96833e-01 367 2012 1 1.62056e+01 1.02311e+00 508 2012 2 1.71292e+01 6.68273e-01 113 2012 3 2.05812e+01 1.89773e+00 666 2012 4 2.28720e+01 6.79298e-01 814 2012 5 2.61607e+01 1.18861e+00 846 2012 6 2.66066e+01 1.23968e+00 470 2012 7 2.84435e+01 1.19973e+00 593 2012 8 2.85226e+01 1.22086e+00 497 2012 9 2.76257e+01 1.21606e+00 604 2012 10 2.56856e+01 1.19700e+00 729 2012 11 2.02565e+01 1.48292e+00 597 2012 12 1.84244e+01 1.72932e+00 344 2013 1 1.76633e+01 1.12414e+00 255 2013 2 1.78615e+01 7.74628e-01 326 2013 3 1.68835e+01 8.82966e-01 578 2013 4 2.01976e+01 1.52117e+00 470 2013 5 2.36320e+01 1.82402e+00 631 2013 6 2.78077e+01 1.19606e+00 588 2013 7 2.77972e+01 1.35216e+00 305 2013 8 2.93212e+01 1.52874e+00 523 2013 9 2.95808e+01 1.12936e+00 697 2013 10 2.63965e+01 1.21552e+00 677 2013 11 2.10249e+01 2.39237e+00 445 2013 12 1.75828e+01 1.28795e+00 401 2014 1 1.45742e+01 8.36963e-01 282 2014 2 1.50815e+01 1.64087e+00 298 2014 3 1.72374e+01 1.04252e+00 492 2014 4 2.02887e+01 1.68196e+00 582 2014 5 2.45859e+01 1.41564e+00 636 2014 6 2.82251e+01 1.19269e+00 646 2014 7 2.77307e+01 1.03868e+00 610 2014 8 2.92296e+01 1.22216e+00 571 2014 9 2.93347e+01 1.26315e+00 512 2014 10 2.59554e+01 1.36787e+00 916 2014 11 2.01451e+01 1.99616e+00 540 2014 12 1.75221e+01 8.93747e-01 429 2015 1 1.56816e+01 1.22666e+00 384 2015 2 1.53931e+01 8.08714e-01 452 2015 3 1.84664e+01 1.73334e+00 429 2015 4 2.17162e+01 1.61745e+00 352 2015 5 2.57668e+01 1.97571e+00 857 2015 6 2.90403e+01 1.24589e+00 612 2015 7 2.82752e+01 1.70802e+00 492 2015 8 2.97521e+01 9.32451e-01 655 2015 9 2.82451e+01 1.04188e+00 354 2015 10 2.47627e+01 1.53095e+00 733 2015 11 2.30446e+01 2.01557e+00 564 2015 12 1.93357e+01 9.50360e-01 355 2016 1 1.69408e+01 1.84113e+00 365 2016 2 1.63023e+01 9.04487e-01 507 2016 3 1.83897e+01 1.48970e+00 357 2016 4 2.14175e+01 1.61223e+00 613 2016 5 2.44490e+01 1.84550e+00 665 2016 6 2.81609e+01 1.36172e+00 657 2016 7 3.03981e+01 1.15142e+00 709 2016 8 2.97236e+01 8.12981e-01 534 2016 9 2.93466e+01 6.72137e-01 624 2016 10 2.59148e+01 1.35013e+00 843 2016 11 2.20674e+01 1.75770e+00 572 2016 12 1.84758e+01 1.11875e+00 421 2017 1 1.75100e+01 1.39244e+00 424 2017 2 1.85917e+01 9.60640e-01 534 2017 3 1.90362e+01 1.21556e+00 737 2017 4 2.26389e+01 1.32983e+00 637 2017 5 2.48392e+01 1.30516e+00 590 2017 6 2.74176e+01 1.49906e+00 330 2017 7 2.96761e+01 1.33898e+00 573 2017 8 2.95330e+01 1.14216e+00 569 2017 9 2.82004e+01 1.00214e+00 559 2017 10 2.58078e+01 1.53425e+00 749 2017 11 2.18776e+01 1.37353e+00 771 2017 12 1.79985e+01 1.70889e+00 326 2018 1 1.35720e+01 8.12448e-01 417 2018 2 1.83836e+01 2.78692e+00 359 2018 3 1.94243e+01 1.22948e+00 707 2018 4 2.09118e+01 1.03360e+00 646 2018 5 2.47459e+01 2.05695e+00 697 2018 6 2.83758e+01 1.48052e+00 604 2018 7 2.91098e+01 1.29010e+00 583 2018 8 2.90484e+01 1.11223e+00 627 2018 9 2.97497e+01 1.50985e+00 705 2018 10 2.76264e+01 1.82053e+00 846 2018 11 2.19269e+01 1.54253e+00 275 2018 12 1.81766e+01 1.37039e+00 231 2019 1 1.68612e+01 1.29492e+00 487 2019 2 1.73432e+01 1.80697e+00 256 2019 3 1.86783e+01 1.22878e+00 523 2019 4 2.13532e+01 1.60280e+00 532 2019 5 2.67799e+01 1.78941e+00 847 2019 6 2.85506e+01 1.19119e+00 486 2019 7 2.94802e+01 1.22718e+00 489 2019 8 3.01102e+01 8.61921e-01 414 2019 9 2.92002e+01 1.07617e+00 814 2019 10 2.79200e+01 1.58432e+00 602 2019 11 2.11669e+01 2.10494e+00 691 2019 12 1.76578e+01 1.34075e+00 420 2020 1 1.72225e+01 1.30793e+00 512 2020 2 1.73242e+01 1.10751e+00 497 2020 3 2.14989e+01 3.05277e+00 619 2020 4 2.23717e+01 1.06057e+00 448 2020 5 2.38869e+01 1.55097e+00 652 2020 6 2.85921e+01 1.21775e+00 464 2020 7 2.83812e+01 1.17706e+00 493 2020 8 3.01248e+01 7.09433e-01 419 2020 9 2.86520e+01 1.84785e+00 500 2020 10 2.55327e+01 9.41082e-01 653 2020 11 2.26727e+01 1.59967e+00 790 2020 12 1.74162e+01 1.71174e+00 693 2021 1 1.54511e+01 8.88074e-01 412 2021 2 1.60950e+01 1.08966e+00 352 2021 3 1.80923e+01 1.05748e+00 429 2021 4 2.08400e+01 1.17506e+00 650 2021 5 2.43726e+01 1.27597e+00 676 2021 6 2.72632e+01 1.64389e+00 353 2021 7 2.97937e+01 1.05709e+00 427 2021 8 2.98122e+01 1.11207e+00 476 2021 9 2.82556e+01 9.02340e-01 523 2021 10 2.65836e+01 1.25767e+00 584 2021 11 2.11870e+01 1.35625e+00 784 2021 12 1.87464e+01 8.19033e-01 517 2022 1 1.68894e+01 1.93114e+00 576 2022 2 1.61918e+01 1.67900e+00 470 2022 3 1.88784e+01 1.29195e+00 664 2022 4 2.18041e+01 9.99261e-01 310 2022 5 2.56049e+01 1.07755e+00 673 2022 6 2.92025e+01 1.18465e+00 706 2022 7 3.03168e+01 9.62153e-01 558 2022 8 3.07559e+01 8.51912e-01 516 2022 9 2.90458e+01 1.23420e+00 645 2022 10 2.51097e+01 1.46837e+00 740 2022 11 2.19530e+01 2.02196e+00 454 2022 12 1.85338e+01 2.20916e+00 689 2023 1 1.74780e+01 8.11361e-01 650 2023 2 1.81210e+01 1.25422e+00 549 2023 3 2.09859e+01 1.19938e+00 680 2023 4 2.24338e+01 8.83079e-01 515 2023 5 2.48028e+01 1.78957e+00 680 2023 6 2.73419e+01 1.65685e+00 515 2023 7 2.95636e+01 1.24656e+00 643 2023 8 3.06845e+01 9.14380e-01 735 2023 9 3.01695e+01 9.68217e-01 677 2023 10 2.49256e+01 1.37358e+00 767 2023 11 2.13134e+01 1.41368e+00 576 2023 12 1.58291e+01 1.07081e+00 320 2024 1 1.46838e+01 7.20597e-01 432 2024 2 1.61937e+01 6.91188e-01 485 2024 3 1.92596e+01 1.19485e+00 385 2024 4 2.06855e+01 5.81429e-01 32