YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.15991e+01 8.41435e-01 41 2000 3 2.39416e+01 1.24034e+00 161 2000 4 2.55962e+01 6.76578e-01 111 2000 5 2.70488e+01 1.42654e+00 76 2000 6 2.85744e+01 1.90234e+00 63 2000 7 2.96216e+01 1.55766e+00 96 2000 8 2.86604e+01 1.01090e+00 93 2000 9 2.97004e+01 1.65809e+00 92 2000 10 2.79797e+01 2.20682e+00 66 2000 11 2.37170e+01 9.50062e-01 137 2000 12 2.25201e+01 1.08825e+00 103 2001 1 2.01956e+01 1.21293e+00 59 2001 2 2.30023e+01 1.61060e+00 110 2001 3 2.30011e+01 1.75572e+00 123 2001 4 2.55740e+01 1.56860e+00 108 2001 5 2.64987e+01 1.83118e+00 112 2001 6 2.89273e+01 1.76016e+00 97 2001 7 2.91987e+01 1.80204e+00 120 2001 8 2.98898e+01 1.23730e+00 96 2001 9 2.92119e+01 1.61415e+00 61 2001 10 2.59760e+01 1.64779e+00 50 2001 11 2.38525e+01 8.62328e-01 89 2001 12 2.34612e+01 1.01561e+00 82 2002 1 2.24887e+01 2.06666e+00 159 2002 2 2.24058e+01 1.03852e+00 48 2002 3 2.38558e+01 1.26121e+00 72 2002 4 2.68491e+01 1.87060e+00 114 2002 5 2.81417e+01 1.04671e+00 96 2002 6 2.87952e+01 8.73451e-01 52 2002 7 2.89557e+01 1.74196e+00 450 2002 8 2.99405e+01 9.66054e-01 441 2002 9 2.91465e+01 9.12017e-01 382 2002 10 2.83981e+01 8.26326e-01 711 2002 11 2.52238e+01 1.83477e+00 461 2002 12 2.12914e+01 1.35359e+00 490 2003 1 1.84851e+01 1.46772e+00 364 2003 2 2.19588e+01 1.91065e+00 632 2003 3 2.65858e+01 1.06578e+00 534 2003 4 2.46679e+01 1.61589e+00 416 2003 5 2.80368e+01 1.44192e+00 624 2003 6 2.86314e+01 1.31678e+00 190 2003 7 2.92542e+01 1.25524e+00 478 2003 8 2.95090e+01 1.16752e+00 330 2003 9 2.94058e+01 7.05328e-01 404 2003 10 2.76944e+01 1.30149e+00 671 2003 11 2.44236e+01 1.00162e+00 490 2003 12 1.97327e+01 1.87559e+00 424 2004 1 2.04439e+01 1.22254e+00 591 2004 2 2.19612e+01 1.45275e+00 477 2004 3 2.29199e+01 1.21384e+00 477 2004 4 2.36558e+01 1.47683e+00 514 2004 5 2.66356e+01 1.55335e+00 723 2004 6 2.99980e+01 9.85101e-01 616 2004 7 3.04992e+01 9.53707e-01 582 2004 8 2.98459e+01 1.65228e+00 323 2004 9 2.82700e+01 1.63607e+00 480 2004 10 2.64608e+01 1.33236e+00 527 2004 11 2.40049e+01 1.20333e+00 651 2004 12 2.18591e+01 1.70541e+00 354 2005 1 2.02113e+01 1.57200e+00 558 2005 2 2.04348e+01 1.15047e+00 425 2005 3 2.29489e+01 2.00824e+00 508 2005 4 2.40941e+01 1.00182e+00 607 2005 5 2.65782e+01 1.58670e+00 532 2005 6 2.89709e+01 1.17322e+00 259 2005 7 3.00079e+01 1.37887e+00 575 2005 8 3.08782e+01 1.25334e+00 533 2005 9 2.93437e+01 1.42366e+00 588 2005 10 2.61367e+01 2.77446e+00 325 2005 11 2.38699e+01 1.22111e+00 606 2005 12 2.13731e+01 1.35044e+00 553 2006 1 2.04074e+01 1.59709e+00 503 2006 2 2.11460e+01 1.66399e+00 580 2006 3 2.30969e+01 1.21287e+00 707 2006 4 2.51678e+01 1.81384e+00 580 2006 5 2.68448e+01 1.53452e+00 639 2006 6 2.90343e+01 1.12133e+00 474 2006 7 2.91020e+01 1.01093e+00 435 2006 8 2.97649e+01 1.07842e+00 366 2006 9 2.92163e+01 1.10908e+00 463 2006 10 2.74616e+01 1.32603e+00 570 2006 11 2.23850e+01 1.96577e+00 338 2006 12 2.28511e+01 9.44450e-01 309 2007 1 2.24663e+01 1.30582e+00 573 2007 2 2.04809e+01 1.24457e+00 292 2007 3 2.26106e+01 1.07990e+00 468 2007 4 2.44173e+01 1.39761e+00 720 2007 5 2.63856e+01 1.32899e+00 492 2007 6 2.83838e+01 1.47841e+00 405 2007 7 3.04866e+01 1.64876e+00 473 2007 8 3.05610e+01 1.03862e+00 665 2007 9 3.02234e+01 1.11722e+00 436 2007 10 2.75318e+01 1.10020e+00 323 2007 11 2.38786e+01 1.15768e+00 652 2007 12 2.31522e+01 1.34011e+00 653 2008 1 2.12113e+01 1.38165e+00 453 2008 2 2.34653e+01 1.24698e+00 543 2008 3 2.24202e+01 1.44448e+00 419 2008 4 2.47252e+01 1.47463e+00 609 2008 5 2.69777e+01 1.37118e+00 641 2008 6 2.85107e+01 1.02704e+00 569 2008 7 3.00651e+01 1.33850e+00 484 2008 8 2.98728e+01 1.58650e+00 612 2008 9 2.84845e+01 9.49393e-01 373 2008 10 2.66512e+01 2.12800e+00 379 2008 11 2.26371e+01 1.92939e+00 552 2008 12 2.12581e+01 1.25036e+00 462 2009 1 2.06159e+01 1.80804e+00 663 2009 2 2.02909e+01 1.65693e+00 538 2009 3 2.15976e+01 1.76505e+00 486 2009 4 2.48091e+01 1.14711e+00 614 2009 5 2.71797e+01 1.56940e+00 617 2009 6 2.96040e+01 1.65184e+00 461 2009 7 3.00469e+01 1.11144e+00 477 2009 8 3.05120e+01 9.29504e-01 562 2009 9 2.94879e+01 9.28834e-01 422 2009 10 2.84132e+01 1.87979e+00 749 2009 11 2.46909e+01 2.48147e+00 499 2009 12 2.32940e+01 2.02834e+00 376 2010 1 1.88277e+01 1.83915e+00 336 2010 2 1.97949e+01 1.58797e+00 274 2010 3 1.98756e+01 2.01179e+00 486 2010 4 2.37684e+01 1.50482e+00 509 2010 5 2.78601e+01 1.64800e+00 789 2010 6 3.05911e+01 1.16794e+00 594 2010 7 2.98489e+01 1.64380e+00 482 2010 8 3.09605e+01 1.51453e+00 414 2010 9 2.88352e+01 1.29382e+00 475 2010 10 2.67096e+01 1.22855e+00 552 2010 11 2.34630e+01 1.43735e+00 565 2010 12 1.95932e+01 2.19294e+00 538 2011 1 1.92333e+01 1.42941e+00 389 2011 2 2.20618e+01 1.51727e+00 646 2011 3 2.33018e+01 1.30382e+00 640 2011 4 2.68265e+01 1.07273e+00 676 2011 5 2.75718e+01 1.14401e+00 703 2011 6 2.84759e+01 2.03352e+00 511 2011 7 3.02677e+01 1.35336e+00 537 2011 8 2.95989e+01 1.34765e+00 333 2011 9 2.99287e+01 9.78756e-01 466 2011 10 2.65803e+01 2.07621e+00 261 2011 11 2.38220e+01 1.03188e+00 623 2011 12 2.20812e+01 1.02309e+00 603 2012 1 2.04106e+01 1.69093e+00 610 2012 2 2.29697e+01 1.38710e+00 407 2012 3 2.39757e+01 1.08834e+00 612 2012 4 2.47585e+01 1.44521e+00 555 2012 5 2.68145e+01 1.53888e+00 468 2012 6 2.86847e+01 1.31199e+00 384 2012 7 2.95042e+01 1.54261e+00 551 2012 8 2.99888e+01 1.16037e+00 444 2012 9 2.93173e+01 9.99152e-01 333 2012 10 2.64127e+01 2.17467e+00 522 2012 11 2.28019e+01 1.18789e+00 567 2012 12 2.24318e+01 1.72693e+00 494 2013 1 2.23343e+01 1.00078e+00 512 2013 2 2.22037e+01 1.28380e+00 571 2013 3 2.13436e+01 1.41570e+00 497 2013 4 2.53003e+01 1.74407e+00 580 2013 5 2.66978e+01 1.25207e+00 603 2013 6 2.89293e+01 1.36069e+00 386 2013 7 2.95610e+01 1.13915e+00 366 2013 8 2.96863e+01 1.16694e+00 357 2013 9 2.91231e+01 9.08714e-01 316 2013 10 2.76132e+01 1.48571e+00 572 2013 11 2.48377e+01 1.57539e+00 387 2013 12 2.32814e+01 9.24941e-01 557 2014 1 2.10898e+01 2.15200e+00 461 2014 2 2.39197e+01 1.54157e+00 662 2014 3 2.41708e+01 8.04151e-01 561 2014 4 2.57789e+01 1.74420e+00 720 2014 5 2.68960e+01 1.35454e+00 503 2014 6 2.96529e+01 1.53120e+00 451 2014 7 3.00952e+01 1.01742e+00 381 2014 8 3.10960e+01 1.26399e+00 639 2014 9 2.89652e+01 1.29013e+00 296 2014 10 2.71026e+01 1.39233e+00 575 2014 11 2.34592e+01 1.38511e+00 585 2014 12 2.19484e+01 1.08523e+00 471 2015 1 2.25601e+01 1.77923e+00 412 2015 2 2.02643e+01 1.27727e+00 458 2015 3 2.53976e+01 1.43566e+00 745 2015 4 2.70856e+01 1.97355e+00 636 2015 5 2.77869e+01 1.44149e+00 549 2015 6 3.01628e+01 1.52119e+00 457 2015 7 3.03618e+01 9.31171e-01 466 2015 8 3.04329e+01 1.18824e+00 428 2015 9 2.93017e+01 1.43973e+00 268 2015 10 2.78188e+01 1.95568e+00 461 2015 11 2.67348e+01 1.98216e+00 564 2015 12 2.44446e+01 8.48491e-01 372 2016 1 2.06407e+01 1.67406e+00 188 2016 2 2.14485e+01 1.54135e+00 403 2016 3 2.36698e+01 2.04715e+00 276 2016 4 2.52997e+01 1.13266e+00 583 2016 5 2.74620e+01 1.35111e+00 563 2016 6 2.96188e+01 1.15272e+00 434 2016 7 3.09041e+01 1.12456e+00 579 2016 8 3.10205e+01 1.20909e+00 387 2016 9 3.01702e+01 1.17557e+00 546 2016 10 2.72381e+01 1.37918e+00 407 2016 11 2.40105e+01 1.25371e+00 477 2016 12 2.44454e+01 9.21782e-01 561 2017 1 2.22421e+01 1.18475e+00 577 2017 2 2.28773e+01 1.19825e+00 632 2017 3 2.31769e+01 1.35260e+00 635 2017 4 2.51416e+01 1.48201e+00 402 2017 5 2.76689e+01 1.48555e+00 722 2017 6 2.88016e+01 1.33998e+00 257 2017 7 3.03958e+01 1.02177e+00 539 2017 8 3.06649e+01 1.87698e+00 548 2017 9 2.96270e+01 1.19142e+00 493 2017 10 2.74199e+01 2.00621e+00 352 2017 11 2.50094e+01 1.20719e+00 688 2017 12 2.32855e+01 1.51154e+00 703 2018 1 2.03558e+01 9.74939e-01 278 2018 2 2.39846e+01 1.63064e+00 633 2018 3 2.31382e+01 1.64182e+00 804 2018 4 2.57282e+01 1.20945e+00 587 2018 5 2.60850e+01 1.48746e+00 268 2018 6 2.94495e+01 1.29889e+00 363 2018 7 3.07795e+01 1.31069e+00 500 2018 8 3.01553e+01 1.08200e+00 643 2018 9 3.05362e+01 1.16803e+00 524 2018 10 2.81233e+01 1.10446e+00 770 2018 11 2.61457e+01 1.52398e+00 439 2018 12 2.21845e+01 1.43729e+00 395 2019 1 2.21318e+01 1.46796e+00 605 2019 2 2.38045e+01 1.78265e+00 676 2019 3 2.48895e+01 1.48315e+00 518 2019 4 2.61883e+01 1.11650e+00 625 2019 5 2.80274e+01 1.31238e+00 586 2019 6 3.05775e+01 1.14563e+00 477 2019 7 3.05286e+01 1.10716e+00 433 2019 8 3.01917e+01 1.25820e+00 457 2019 9 2.86265e+01 1.44155e+00 562 2019 10 2.81872e+01 8.23309e-01 518 2019 11 2.53811e+01 2.26479e+00 548 2019 12 2.27976e+01 1.10176e+00 581 2020 1 2.25748e+01 1.22358e+00 582 2020 2 2.31513e+01 1.75689e+00 532 2020 3 2.47737e+01 1.92643e+00 645 2020 4 2.75404e+01 1.15203e+00 509 2020 5 2.71331e+01 1.31284e+00 483 2020 6 3.00508e+01 1.40565e+00 446 2020 7 3.04625e+01 1.33821e+00 488 2020 8 3.09722e+01 1.16706e+00 535 2020 9 2.98242e+01 1.08543e+00 451 2020 10 2.85664e+01 1.50148e+00 411 2020 11 2.52419e+01 1.56548e+00 350 2020 12 2.27884e+01 1.46954e+00 458 2021 1 2.16307e+01 1.20919e+00 482 2021 2 2.32815e+01 2.13098e+00 649 2021 3 2.45702e+01 1.41073e+00 598 2021 4 2.57235e+01 1.46476e+00 569 2021 5 2.72059e+01 1.76108e+00 644 2021 6 2.89217e+01 1.35379e+00 192 2021 7 2.99168e+01 1.31306e+00 601 2021 8 3.06451e+01 1.10767e+00 491 2021 9 2.98484e+01 9.48450e-01 562 2021 10 2.76655e+01 9.32423e-01 514 2021 11 2.39412e+01 1.20763e+00 465 2021 12 2.38425e+01 1.31145e+00 755 2022 1 2.21414e+01 1.67389e+00 449 2022 2 2.25141e+01 1.83161e+00 577 2022 3 2.49596e+01 9.89347e-01 669 2022 4 2.61159e+01 7.95212e-01 356 2022 5 2.80488e+01 1.30541e+00 541 2022 6 2.98830e+01 1.48166e+00 505 2022 7 3.03740e+01 1.01810e+00 676 2022 8 3.04031e+01 1.01186e+00 615 2022 9 3.05091e+01 1.54095e+00 506 2022 10 2.66780e+01 1.25266e+00 532 2022 11 2.64397e+01 6.01175e-01 527 2022 12 2.41374e+01 1.29805e+00 486 2023 1 2.18811e+01 1.54582e+00 808 2023 2 2.41014e+01 1.34756e+00 765 2023 3 2.50805e+01 1.34289e+00 627 2023 4 2.67854e+01 1.31725e+00 472 2023 5 2.79329e+01 1.27301e+00 594 2023 6 2.96063e+01 9.18162e-01 343 2023 7 3.18450e+01 7.94660e-01 355 2023 8 3.08791e+01 1.32867e+00 488 2023 9 3.02531e+01 1.08378e+00 418 2023 10 2.77454e+01 1.89873e+00 574 2023 11 2.49493e+01 1.31478e+00 470 2023 12 2.20550e+01 1.83421e+00 263 2024 1 2.19911e+01 1.49217e+00 293 2024 2 2.12809e+01 1.08710e+00 610 2024 3 2.50597e+01 1.20605e+00 485 2024 4 2.50036e+01 6.81885e-01 51