YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.20651e+01 5.45244e-01 48 2000 3 2.39536e+01 8.88261e-01 180 2000 4 2.54001e+01 6.56915e-01 136 2000 5 2.64339e+01 1.57423e+00 105 2000 6 2.90517e+01 1.18607e+00 96 2000 7 2.98256e+01 1.13691e+00 118 2000 8 2.87688e+01 1.35117e+00 91 2000 9 2.95158e+01 2.00844e+00 96 2000 10 2.67867e+01 2.69753e+00 99 2000 11 2.35093e+01 1.22246e+00 114 2000 12 2.28528e+01 6.41570e-01 89 2001 1 1.83002e+01 4.49125e-01 25 2001 2 2.31118e+01 1.12860e+00 144 2001 3 2.28361e+01 1.54308e+00 120 2001 4 2.53640e+01 1.38901e+00 130 2001 5 2.58363e+01 1.19693e+00 101 2001 6 2.89508e+01 1.47478e+00 96 2001 7 2.96610e+01 1.59749e+00 74 2001 8 3.00021e+01 1.24985e+00 144 2001 9 2.80819e+01 9.88415e-01 32 2001 10 2.57671e+01 1.63011e+00 99 2001 11 2.38185e+01 1.07203e+00 62 2001 12 2.44111e+01 5.22889e-01 80 2002 1 2.28040e+01 1.70378e+00 135 2002 2 2.27831e+01 8.65144e-01 56 2002 3 2.42777e+01 1.83676e+00 103 2002 4 2.70034e+01 1.28755e+00 157 2002 5 2.84582e+01 5.65654e-01 112 2002 6 2.68450e+01 1.95233e-01 16 2002 7 2.92090e+01 1.35319e+00 444 2002 8 2.97521e+01 1.35026e+00 457 2002 9 2.91632e+01 9.85326e-01 432 2002 10 2.81906e+01 8.46017e-01 771 2002 11 2.49941e+01 2.11303e+00 508 2002 12 2.09519e+01 1.57493e+00 487 2003 1 1.76886e+01 1.83534e+00 482 2003 2 2.19843e+01 1.99130e+00 671 2003 3 2.65720e+01 9.25711e-01 559 2003 4 2.47973e+01 1.35274e+00 513 2003 5 2.81214e+01 1.57055e+00 597 2003 6 2.86432e+01 1.25697e+00 275 2003 7 2.92235e+01 1.25052e+00 470 2003 8 2.90019e+01 1.54603e+00 331 2003 9 2.93629e+01 8.12506e-01 365 2003 10 2.74483e+01 1.16331e+00 695 2003 11 2.41429e+01 8.84357e-01 499 2003 12 1.95657e+01 1.46386e+00 421 2004 1 2.01217e+01 9.77291e-01 569 2004 2 2.15164e+01 1.18850e+00 513 2004 3 2.27177e+01 1.11426e+00 470 2004 4 2.33937e+01 1.28263e+00 655 2004 5 2.65169e+01 1.34060e+00 802 2004 6 2.99743e+01 1.06131e+00 644 2004 7 3.03172e+01 9.67051e-01 626 2004 8 3.03661e+01 9.84926e-01 300 2004 9 2.81886e+01 1.43292e+00 528 2004 10 2.64601e+01 1.30097e+00 606 2004 11 2.38200e+01 1.24942e+00 639 2004 12 2.21751e+01 1.70763e+00 413 2005 1 1.97591e+01 1.65405e+00 601 2005 2 2.00428e+01 1.16563e+00 426 2005 3 2.26057e+01 2.19920e+00 519 2005 4 2.38808e+01 8.15620e-01 773 2005 5 2.64455e+01 1.65654e+00 547 2005 6 2.88084e+01 1.04104e+00 261 2005 7 3.00774e+01 1.05191e+00 635 2005 8 3.05818e+01 1.42602e+00 594 2005 9 2.93415e+01 1.35257e+00 544 2005 10 2.63909e+01 2.74039e+00 351 2005 11 2.36780e+01 1.11165e+00 725 2005 12 2.12846e+01 1.51501e+00 589 2006 1 2.04152e+01 1.39581e+00 431 2006 2 2.09393e+01 1.53034e+00 630 2006 3 2.28954e+01 1.14415e+00 793 2006 4 2.49907e+01 1.66741e+00 652 2006 5 2.67173e+01 1.43544e+00 662 2006 6 2.92812e+01 8.40693e-01 514 2006 7 2.87846e+01 9.43023e-01 339 2006 8 2.96222e+01 1.11885e+00 350 2006 9 2.89874e+01 8.45785e-01 558 2006 10 2.71598e+01 1.40383e+00 648 2006 11 2.21031e+01 2.25903e+00 363 2006 12 2.24170e+01 9.46357e-01 386 2007 1 2.24933e+01 1.22765e+00 620 2007 2 2.05394e+01 1.07227e+00 326 2007 3 2.27512e+01 6.39971e-01 444 2007 4 2.42532e+01 9.98557e-01 672 2007 5 2.60190e+01 1.29105e+00 636 2007 6 2.81729e+01 1.32756e+00 479 2007 7 3.03597e+01 1.05215e+00 523 2007 8 3.04881e+01 9.23527e-01 677 2007 9 2.96633e+01 1.27485e+00 433 2007 10 2.75120e+01 8.98777e-01 345 2007 11 2.36818e+01 1.16892e+00 680 2007 12 2.31323e+01 1.40002e+00 660 2008 1 2.08352e+01 1.14278e+00 448 2008 2 2.30475e+01 1.43652e+00 626 2008 3 2.25800e+01 1.30056e+00 446 2008 4 2.48346e+01 1.24335e+00 724 2008 5 2.71055e+01 1.47855e+00 816 2008 6 2.85789e+01 6.27874e-01 532 2008 7 2.95946e+01 1.53371e+00 531 2008 8 3.00218e+01 1.58099e+00 593 2008 9 2.83942e+01 9.40225e-01 467 2008 10 2.66080e+01 2.23417e+00 396 2008 11 2.18820e+01 1.95525e+00 624 2008 12 2.11601e+01 1.09739e+00 564 2009 1 2.05184e+01 1.83534e+00 703 2009 2 2.02436e+01 1.80959e+00 661 2009 3 2.14727e+01 1.83916e+00 504 2009 4 2.47074e+01 8.88834e-01 713 2009 5 2.70426e+01 1.51205e+00 750 2009 6 2.96658e+01 1.32310e+00 469 2009 7 2.98652e+01 1.07239e+00 484 2009 8 3.00637e+01 1.05585e+00 649 2009 9 2.94764e+01 9.05990e-01 462 2009 10 2.81674e+01 2.17057e+00 663 2009 11 2.47331e+01 2.20163e+00 487 2009 12 2.30773e+01 2.07737e+00 397 2010 1 1.94293e+01 1.86883e+00 243 2010 2 1.97171e+01 1.81349e+00 291 2010 3 1.95318e+01 1.82767e+00 520 2010 4 2.35899e+01 1.31945e+00 573 2010 5 2.77868e+01 1.47230e+00 747 2010 6 3.05346e+01 1.19960e+00 630 2010 7 3.00439e+01 1.36665e+00 408 2010 8 3.10586e+01 1.36608e+00 439 2010 9 2.89708e+01 1.04852e+00 547 2010 10 2.65615e+01 1.19417e+00 665 2010 11 2.33656e+01 1.69204e+00 524 2010 12 1.90224e+01 2.60913e+00 576 2011 1 1.91272e+01 1.38158e+00 496 2011 2 2.18787e+01 1.38866e+00 750 2011 3 2.32789e+01 1.32004e+00 785 2011 4 2.66379e+01 9.94978e-01 810 2011 5 2.73539e+01 7.70723e-01 773 2011 6 2.90870e+01 1.51426e+00 495 2011 7 3.04061e+01 1.22704e+00 637 2011 8 2.96204e+01 1.48130e+00 333 2011 9 2.97798e+01 7.97650e-01 587 2011 10 2.68005e+01 2.02264e+00 271 2011 11 2.35936e+01 8.43783e-01 612 2011 12 2.21348e+01 9.87959e-01 580 2012 1 2.00081e+01 1.75242e+00 580 2012 2 2.22230e+01 1.56942e+00 522 2012 3 2.39376e+01 1.05023e+00 688 2012 4 2.49154e+01 1.27361e+00 618 2012 5 2.67860e+01 1.41139e+00 554 2012 6 2.88243e+01 1.04141e+00 444 2012 7 2.96258e+01 1.18879e+00 582 2012 8 2.98871e+01 1.45081e+00 536 2012 9 2.92506e+01 1.10986e+00 431 2012 10 2.67644e+01 2.16098e+00 514 2012 11 2.22001e+01 1.34004e+00 588 2012 12 2.21866e+01 1.58629e+00 488 2013 1 2.22382e+01 1.01427e+00 543 2013 2 2.20467e+01 1.15135e+00 567 2013 3 2.12069e+01 1.40163e+00 701 2013 4 2.53214e+01 1.59477e+00 570 2013 5 2.66873e+01 1.20164e+00 709 2013 6 2.87291e+01 1.09609e+00 408 2013 7 2.92201e+01 1.16366e+00 498 2013 8 2.93274e+01 1.11771e+00 404 2013 9 2.88215e+01 1.02314e+00 435 2013 10 2.75650e+01 1.33611e+00 698 2013 11 2.46715e+01 1.21355e+00 367 2013 12 2.33278e+01 8.55149e-01 550 2014 1 2.05893e+01 2.04131e+00 452 2014 2 2.37855e+01 1.49556e+00 744 2014 3 2.41915e+01 7.47341e-01 689 2014 4 2.56455e+01 1.59119e+00 660 2014 5 2.64101e+01 1.31909e+00 559 2014 6 2.91236e+01 1.85524e+00 486 2014 7 3.01444e+01 1.07497e+00 451 2014 8 3.11056e+01 1.16771e+00 718 2014 9 2.91382e+01 1.11718e+00 410 2014 10 2.69985e+01 1.43505e+00 624 2014 11 2.33230e+01 1.32871e+00 563 2014 12 2.16023e+01 1.49127e+00 548 2015 1 2.25595e+01 1.68338e+00 484 2015 2 2.01176e+01 1.19765e+00 519 2015 3 2.52796e+01 1.39656e+00 808 2015 4 2.70933e+01 1.89345e+00 775 2015 5 2.76744e+01 1.34092e+00 722 2015 6 3.03198e+01 1.38415e+00 437 2015 7 3.03074e+01 9.22931e-01 490 2015 8 3.04425e+01 9.76030e-01 500 2015 9 2.96689e+01 1.46362e+00 301 2015 10 2.77164e+01 1.63088e+00 476 2015 11 2.71153e+01 1.66308e+00 489 2015 12 2.42738e+01 1.08249e+00 342 2016 1 2.13321e+01 2.25254e+00 147 2016 2 2.07230e+01 1.45266e+00 398 2016 3 2.35117e+01 1.95999e+00 294 2016 4 2.54447e+01 8.44892e-01 519 2016 5 2.72654e+01 1.46270e+00 674 2016 6 2.97599e+01 9.99490e-01 498 2016 7 3.08331e+01 8.79657e-01 589 2016 8 3.07825e+01 1.07352e+00 402 2016 9 3.03139e+01 1.15101e+00 613 2016 10 2.68766e+01 1.50999e+00 427 2016 11 2.36176e+01 1.15305e+00 629 2016 12 2.42536e+01 8.11759e-01 582 2017 1 2.19895e+01 1.28623e+00 595 2017 2 2.27979e+01 1.07037e+00 659 2017 3 2.28719e+01 1.32161e+00 753 2017 4 2.54948e+01 1.09892e+00 378 2017 5 2.76658e+01 1.40112e+00 769 2017 6 2.88893e+01 1.76018e+00 326 2017 7 3.06042e+01 8.16209e-01 592 2017 8 3.09603e+01 1.43442e+00 649 2017 9 2.98094e+01 1.21736e+00 550 2017 10 2.72586e+01 1.73766e+00 494 2017 11 2.45647e+01 1.02297e+00 735 2017 12 2.29519e+01 1.61423e+00 783 2018 1 1.99516e+01 1.19559e+00 299 2018 2 2.39586e+01 1.49273e+00 742 2018 3 2.30422e+01 1.61177e+00 804 2018 4 2.58609e+01 1.06383e+00 730 2018 5 2.61329e+01 1.27867e+00 243 2018 6 2.97423e+01 1.10883e+00 424 2018 7 3.09049e+01 1.05312e+00 477 2018 8 3.02571e+01 1.15881e+00 606 2018 9 3.01868e+01 9.94861e-01 527 2018 10 2.80741e+01 1.09202e+00 720 2018 11 2.61989e+01 1.28833e+00 534 2018 12 2.16972e+01 1.32438e+00 505 2019 1 2.19307e+01 1.57504e+00 597 2019 2 2.36375e+01 1.95022e+00 659 2019 3 2.43426e+01 1.42962e+00 660 2019 4 2.60249e+01 1.05968e+00 705 2019 5 2.79348e+01 1.22662e+00 677 2019 6 3.05704e+01 1.07523e+00 533 2019 7 3.05378e+01 1.01844e+00 458 2019 8 3.04013e+01 1.09037e+00 457 2019 9 2.87570e+01 1.38666e+00 662 2019 10 2.80019e+01 8.31926e-01 566 2019 11 2.53365e+01 2.49184e+00 637 2019 12 2.27072e+01 9.97501e-01 540 2020 1 2.23740e+01 1.24292e+00 574 2020 2 2.28680e+01 1.94145e+00 550 2020 3 2.44090e+01 1.97353e+00 824 2020 4 2.73965e+01 1.06669e+00 574 2020 5 2.67041e+01 1.34849e+00 490 2020 6 2.98068e+01 1.31179e+00 460 2020 7 3.04488e+01 1.34205e+00 591 2020 8 3.10787e+01 1.27481e+00 480 2020 9 2.97549e+01 1.15629e+00 480 2020 10 2.83841e+01 1.51629e+00 470 2020 11 2.50737e+01 1.51758e+00 425 2020 12 2.20201e+01 1.47266e+00 477 2021 1 2.13252e+01 1.09359e+00 555 2021 2 2.29957e+01 2.06104e+00 663 2021 3 2.43587e+01 1.40482e+00 669 2021 4 2.53669e+01 1.50484e+00 624 2021 5 2.72663e+01 1.52525e+00 721 2021 6 2.84674e+01 1.19402e+00 317 2021 7 3.00311e+01 1.11026e+00 551 2021 8 3.05919e+01 1.09021e+00 556 2021 9 2.98282e+01 8.82534e-01 525 2021 10 2.79162e+01 9.36045e-01 564 2021 11 2.33906e+01 1.46053e+00 490 2021 12 2.35910e+01 1.30563e+00 803 2022 1 2.20546e+01 1.48130e+00 464 2022 2 2.23377e+01 1.80217e+00 685 2022 3 2.48406e+01 1.03362e+00 716 2022 4 2.59970e+01 9.10302e-01 385 2022 5 2.81486e+01 1.16181e+00 637 2022 6 2.95720e+01 1.49575e+00 505 2022 7 3.01168e+01 1.09971e+00 720 2022 8 3.04624e+01 9.10766e-01 608 2022 9 3.07215e+01 1.13075e+00 464 2022 10 2.65696e+01 1.26922e+00 636 2022 11 2.61495e+01 7.17689e-01 667 2022 12 2.35912e+01 1.52291e+00 540 2023 1 2.16068e+01 1.47027e+00 856 2023 2 2.40206e+01 1.20046e+00 831 2023 3 2.49946e+01 1.39502e+00 662 2023 4 2.68509e+01 8.56453e-01 512 2023 5 2.79896e+01 1.07285e+00 628 2023 6 2.96762e+01 6.97523e-01 308 2023 7 3.13953e+01 1.36711e+00 419 2023 8 3.09333e+01 1.24061e+00 522 2023 9 3.00292e+01 1.17675e+00 502 2023 10 2.73973e+01 1.86595e+00 626 2023 11 2.49742e+01 1.05565e+00 529 2023 12 2.19183e+01 2.00989e+00 301 2024 1 2.14462e+01 1.86666e+00 363 2024 2 2.09797e+01 9.44980e-01 575 2024 3 2.51108e+01 9.73149e-01 488 2024 4 2.40562e+01 7.27972e-01 60