YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.20777e+01 5.75153e-01 48 2000 3 2.46817e+01 9.71250e-01 177 2000 4 2.58619e+01 5.01796e-01 147 2000 5 2.85147e+01 1.10468e+00 79 2000 6 2.77760e+01 1.76654e+00 75 2000 7 3.02956e+01 7.79676e-01 171 2000 8 2.87338e+01 1.06451e+00 80 2000 9 2.99380e+01 1.84826e+00 83 2000 10 2.51800e+01 1.67356e+00 123 2000 11 2.38245e+01 1.09786e+00 157 2000 12 2.20538e+01 1.38305e+00 115 2001 1 1.97117e+01 1.45725e+00 60 2001 2 2.29206e+01 1.39040e+00 135 2001 3 2.32581e+01 2.05887e+00 171 2001 4 2.53090e+01 1.09277e+00 192 2001 5 2.53374e+01 1.93595e+00 83 2001 6 2.90207e+01 2.44753e+00 84 2001 7 2.84060e+01 1.51654e+00 82 2001 8 2.93857e+01 1.82165e+00 186 2001 9 2.88133e+01 2.07722e+00 72 2001 10 2.61734e+01 1.19585e-01 32 2001 11 2.37582e+01 7.54329e-01 112 2001 12 2.33721e+01 1.21322e+00 156 2002 1 2.20932e+01 2.25179e+00 166 2002 2 2.24763e+01 1.09208e+00 80 2002 3 2.49322e+01 1.73002e+00 120 2002 4 2.70680e+01 1.34925e+00 116 2002 5 2.82658e+01 7.45166e-01 112 2002 6 2.82098e+01 8.76844e-01 54 2002 7 2.97028e+01 1.53036e+00 499 2002 8 2.99143e+01 1.12898e+00 476 2002 9 2.91791e+01 8.53359e-01 442 2002 10 2.82674e+01 9.26519e-01 794 2002 11 2.48533e+01 2.42822e+00 652 2002 12 2.13077e+01 1.68682e+00 502 2003 1 1.82032e+01 1.55307e+00 511 2003 2 2.22438e+01 1.98544e+00 620 2003 3 2.69143e+01 1.12154e+00 517 2003 4 2.50459e+01 1.95534e+00 501 2003 5 2.86491e+01 1.36654e+00 636 2003 6 2.87215e+01 1.01319e+00 214 2003 7 2.93269e+01 9.73502e-01 477 2003 8 2.98179e+01 9.35891e-01 335 2003 9 2.93291e+01 7.68988e-01 384 2003 10 2.78754e+01 1.29489e+00 594 2003 11 2.44877e+01 8.99084e-01 514 2003 12 1.95849e+01 1.65601e+00 446 2004 1 2.04293e+01 1.37827e+00 637 2004 2 2.23529e+01 1.57048e+00 495 2004 3 2.35213e+01 1.27376e+00 500 2004 4 2.41627e+01 1.58484e+00 612 2004 5 2.71699e+01 1.79402e+00 686 2004 6 3.01959e+01 1.12741e+00 496 2004 7 3.03875e+01 1.25447e+00 527 2004 8 3.06233e+01 1.27783e+00 367 2004 9 2.89870e+01 1.52558e+00 367 2004 10 2.67219e+01 1.49877e+00 593 2004 11 2.41017e+01 1.19477e+00 585 2004 12 2.14827e+01 2.10156e+00 432 2005 1 1.98375e+01 1.97704e+00 625 2005 2 2.05798e+01 1.13797e+00 452 2005 3 2.29083e+01 2.23098e+00 513 2005 4 2.39725e+01 1.22299e+00 653 2005 5 2.68801e+01 1.97493e+00 562 2005 6 2.87562e+01 1.44309e+00 291 2005 7 3.01027e+01 1.43255e+00 606 2005 8 3.09294e+01 1.44808e+00 603 2005 9 3.02192e+01 1.44883e+00 459 2005 10 2.65919e+01 2.61101e+00 337 2005 11 2.38620e+01 1.27294e+00 645 2005 12 2.16088e+01 1.67377e+00 502 2006 1 2.10918e+01 1.59868e+00 524 2006 2 2.11892e+01 2.01280e+00 602 2006 3 2.36655e+01 1.43715e+00 751 2006 4 2.55927e+01 1.77707e+00 604 2006 5 2.73316e+01 1.63469e+00 643 2006 6 2.96707e+01 1.05713e+00 515 2006 7 2.93132e+01 9.35900e-01 369 2006 8 3.00592e+01 8.59597e-01 432 2006 9 2.96220e+01 8.90711e-01 529 2006 10 2.71626e+01 1.79523e+00 730 2006 11 2.27112e+01 2.54987e+00 382 2006 12 2.25517e+01 1.34481e+00 315 2007 1 2.24643e+01 1.42248e+00 520 2007 2 2.05429e+01 1.51707e+00 364 2007 3 2.31217e+01 1.03776e+00 466 2007 4 2.43857e+01 1.24343e+00 729 2007 5 2.65338e+01 1.57112e+00 659 2007 6 2.88092e+01 1.58863e+00 388 2007 7 3.08628e+01 8.39342e-01 545 2007 8 3.05378e+01 1.39263e+00 586 2007 9 2.98365e+01 1.49518e+00 394 2007 10 2.73993e+01 1.46853e+00 234 2007 11 2.37484e+01 1.17947e+00 668 2007 12 2.31931e+01 1.62892e+00 535 2008 1 2.11142e+01 1.25060e+00 526 2008 2 2.32905e+01 1.43213e+00 519 2008 3 2.33513e+01 1.57179e+00 528 2008 4 2.50959e+01 1.49741e+00 742 2008 5 2.75446e+01 1.76023e+00 807 2008 6 2.87523e+01 8.66600e-01 485 2008 7 2.99947e+01 1.06589e+00 520 2008 8 3.02692e+01 1.34182e+00 556 2008 9 2.86836e+01 9.47368e-01 361 2008 10 2.71125e+01 1.62056e+00 332 2008 11 2.21602e+01 1.95262e+00 638 2008 12 2.14066e+01 1.08914e+00 550 2009 1 2.04911e+01 2.18227e+00 609 2009 2 2.05748e+01 1.73957e+00 497 2009 3 2.17466e+01 1.67764e+00 525 2009 4 2.50317e+01 1.13127e+00 781 2009 5 2.75005e+01 1.64002e+00 737 2009 6 3.00388e+01 1.72999e+00 337 2009 7 3.02042e+01 1.18837e+00 460 2009 8 3.01785e+01 1.18392e+00 605 2009 9 2.97813e+01 8.80081e-01 327 2009 10 2.85820e+01 2.06459e+00 765 2009 11 2.42028e+01 2.08589e+00 423 2009 12 2.32195e+01 2.08680e+00 447 2010 1 2.01443e+01 1.44248e+00 271 2010 2 1.90558e+01 1.70998e+00 331 2010 3 1.95454e+01 2.02978e+00 538 2010 4 2.41713e+01 1.43288e+00 470 2010 5 2.82343e+01 1.64791e+00 612 2010 6 3.05047e+01 1.62155e+00 683 2010 7 2.98387e+01 1.27553e+00 409 2010 8 3.09718e+01 1.26201e+00 432 2010 9 2.95208e+01 1.30307e+00 582 2010 10 2.67276e+01 1.39544e+00 603 2010 11 2.34129e+01 1.80060e+00 551 2010 12 1.95864e+01 2.24818e+00 373 2011 1 1.96510e+01 1.45976e+00 464 2011 2 2.21659e+01 1.78639e+00 613 2011 3 2.35552e+01 1.74939e+00 731 2011 4 2.68339e+01 1.33519e+00 696 2011 5 2.77858e+01 1.08136e+00 689 2011 6 2.93124e+01 1.78909e+00 456 2011 7 3.02863e+01 1.66439e+00 545 2011 8 2.99092e+01 1.09962e+00 475 2011 9 3.01950e+01 1.19925e+00 535 2011 10 2.59576e+01 2.11000e+00 313 2011 11 2.40693e+01 9.56418e-01 593 2011 12 2.22680e+01 9.76552e-01 609 2012 1 1.98718e+01 1.81392e+00 558 2012 2 2.25910e+01 1.76577e+00 418 2012 3 2.39547e+01 1.23998e+00 634 2012 4 2.52812e+01 1.22505e+00 547 2012 5 2.67954e+01 1.67714e+00 451 2012 6 2.91988e+01 1.28959e+00 327 2012 7 2.96543e+01 1.21619e+00 552 2012 8 3.02708e+01 1.24709e+00 460 2012 9 2.97196e+01 1.20960e+00 403 2012 10 2.65929e+01 2.27665e+00 556 2012 11 2.22448e+01 1.53119e+00 593 2012 12 2.23145e+01 1.63362e+00 461 2013 1 2.25490e+01 1.12704e+00 586 2013 2 2.20255e+01 1.41683e+00 552 2013 3 2.13383e+01 1.58752e+00 491 2013 4 2.53352e+01 1.39307e+00 607 2013 5 2.69496e+01 1.41604e+00 583 2013 6 2.90603e+01 9.61436e-01 377 2013 7 2.92057e+01 1.31367e+00 435 2013 8 2.91183e+01 1.22943e+00 386 2013 9 2.92504e+01 9.72344e-01 369 2013 10 2.75642e+01 1.43280e+00 659 2013 11 2.51530e+01 1.23535e+00 424 2013 12 2.35199e+01 8.66738e-01 633 2014 1 2.12142e+01 1.86161e+00 435 2014 2 2.42632e+01 1.51983e+00 690 2014 3 2.45166e+01 1.12063e+00 709 2014 4 2.61108e+01 1.54230e+00 705 2014 5 2.69238e+01 1.48263e+00 561 2014 6 2.95966e+01 1.63562e+00 442 2014 7 3.03215e+01 1.36809e+00 600 2014 8 3.13886e+01 1.24715e+00 729 2014 9 2.93988e+01 1.21585e+00 357 2014 10 2.72829e+01 1.84219e+00 649 2014 11 2.34421e+01 1.67439e+00 587 2014 12 2.16080e+01 1.45055e+00 511 2015 1 2.21365e+01 1.69543e+00 522 2015 2 1.99694e+01 1.44150e+00 565 2015 3 2.53713e+01 1.45264e+00 754 2015 4 2.71700e+01 1.87642e+00 604 2015 5 2.78479e+01 1.16209e+00 708 2015 6 2.97117e+01 1.54920e+00 428 2015 7 3.03939e+01 8.03951e-01 493 2015 8 3.06984e+01 1.04504e+00 493 2015 9 3.02652e+01 1.14113e+00 306 2015 10 2.83215e+01 1.46140e+00 490 2015 11 2.65722e+01 1.97974e+00 638 2015 12 2.47104e+01 9.85496e-01 385 2016 1 2.21321e+01 2.54664e+00 193 2016 2 2.10130e+01 1.70058e+00 433 2016 3 2.38549e+01 2.23176e+00 308 2016 4 2.56647e+01 1.33986e+00 558 2016 5 2.77548e+01 1.48399e+00 687 2016 6 2.97695e+01 1.31383e+00 478 2016 7 3.05103e+01 9.65255e-01 600 2016 8 3.07353e+01 1.16443e+00 470 2016 9 3.05586e+01 1.53546e+00 528 2016 10 2.74676e+01 1.57462e+00 426 2016 11 2.38921e+01 1.46677e+00 648 2016 12 2.44936e+01 9.88117e-01 616 2017 1 2.19377e+01 1.42533e+00 605 2017 2 2.30466e+01 1.15978e+00 735 2017 3 2.31903e+01 1.42251e+00 581 2017 4 2.53276e+01 1.45180e+00 465 2017 5 2.75067e+01 1.54158e+00 685 2017 6 2.93338e+01 1.65144e+00 285 2017 7 3.06912e+01 9.69897e-01 541 2017 8 3.07906e+01 1.54796e+00 645 2017 9 3.01322e+01 1.27465e+00 607 2017 10 2.69756e+01 2.28918e+00 397 2017 11 2.45519e+01 1.32375e+00 659 2017 12 2.27787e+01 1.55615e+00 674 2018 1 2.00699e+01 1.10854e+00 284 2018 2 2.44532e+01 1.34012e+00 615 2018 3 2.30542e+01 1.66897e+00 832 2018 4 2.62685e+01 1.29955e+00 698 2018 5 2.60507e+01 1.33001e+00 157 2018 6 2.99872e+01 1.05132e+00 414 2018 7 3.06998e+01 1.14129e+00 424 2018 8 3.03701e+01 9.54475e-01 625 2018 9 2.99305e+01 1.18127e+00 497 2018 10 2.78994e+01 1.12635e+00 691 2018 11 2.60540e+01 1.61336e+00 488 2018 12 2.21546e+01 1.50429e+00 456 2019 1 2.15722e+01 1.67370e+00 718 2019 2 2.39284e+01 1.74886e+00 566 2019 3 2.51314e+01 1.51400e+00 713 2019 4 2.63815e+01 1.04592e+00 745 2019 5 2.80063e+01 1.32732e+00 691 2019 6 3.08912e+01 1.31999e+00 592 2019 7 3.06694e+01 1.45548e+00 561 2019 8 3.05096e+01 1.23483e+00 356 2019 9 2.86491e+01 1.78687e+00 466 2019 10 2.83036e+01 1.06455e+00 682 2019 11 2.52093e+01 2.43128e+00 602 2019 12 2.28994e+01 1.14293e+00 611 2020 1 2.21589e+01 1.67278e+00 545 2020 2 2.32325e+01 1.79171e+00 414 2020 3 2.47848e+01 2.05165e+00 777 2020 4 2.79476e+01 9.80479e-01 583 2020 5 2.76206e+01 1.39647e+00 522 2020 6 3.00928e+01 1.38014e+00 407 2020 7 3.05530e+01 1.58523e+00 500 2020 8 3.10458e+01 1.18031e+00 590 2020 9 2.99924e+01 1.37923e+00 413 2020 10 2.84315e+01 1.84824e+00 371 2020 11 2.49874e+01 1.26197e+00 401 2020 12 2.20047e+01 1.45378e+00 557 2021 1 2.14141e+01 1.29125e+00 547 2021 2 2.32534e+01 2.27775e+00 675 2021 3 2.44355e+01 1.53016e+00 701 2021 4 2.57074e+01 1.78033e+00 576 2021 5 2.75779e+01 1.81745e+00 661 2021 6 2.84484e+01 1.37518e+00 231 2021 7 3.02204e+01 1.22765e+00 502 2021 8 3.04317e+01 1.23242e+00 491 2021 9 3.02704e+01 1.27639e+00 626 2021 10 2.84385e+01 7.40713e-01 554 2021 11 2.37427e+01 1.34935e+00 465 2021 12 2.37648e+01 1.33639e+00 857 2022 1 2.22418e+01 1.89514e+00 587 2022 2 2.30931e+01 1.60092e+00 644 2022 3 2.47602e+01 1.18224e+00 694 2022 4 2.58809e+01 1.06319e+00 319 2022 5 2.84876e+01 1.38176e+00 724 2022 6 2.99251e+01 1.41897e+00 490 2022 7 3.01773e+01 9.45163e-01 484 2022 8 3.05253e+01 1.01633e+00 592 2022 9 3.10455e+01 1.23599e+00 481 2022 10 2.65203e+01 1.39568e+00 542 2022 11 2.64537e+01 8.34315e-01 532 2022 12 2.41089e+01 1.16555e+00 543 2023 1 2.18312e+01 1.60537e+00 779 2023 2 2.42792e+01 1.37243e+00 793 2023 3 2.53784e+01 1.52047e+00 695 2023 4 2.70097e+01 1.45116e+00 474 2023 5 2.84934e+01 1.31716e+00 582 2023 6 3.01700e+01 1.41656e+00 364 2023 7 3.21241e+01 1.35679e+00 520 2023 8 3.13792e+01 1.24947e+00 400 2023 9 3.05360e+01 1.09649e+00 447 2023 10 2.73127e+01 2.00500e+00 654 2023 11 2.51586e+01 8.54852e-01 538 2023 12 2.22877e+01 2.12963e+00 286 2024 1 2.22024e+01 1.86866e+00 391 2024 2 2.10477e+01 1.19547e+00 600 2024 3 2.52682e+01 1.20228e+00 438 2024 4 2.42092e+01 5.99421e-02 24