YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.75583e+01 3.33733e-01 18 2000 3 1.92545e+01 8.44271e-01 99 2000 4 2.05432e+01 2.36051e+00 98 2000 5 2.53935e+01 1.45464e+00 106 2000 6 2.81735e+01 1.30340e+00 114 2000 7 2.97980e+01 1.64209e+00 108 2000 8 2.96101e+01 6.34613e-01 57 2000 9 2.73810e+01 1.65783e+00 121 2000 10 2.25899e+01 1.29551e+00 93 2000 11 2.18414e+01 2.62365e+00 102 2000 12 1.66594e+01 1.28512e-01 16 2001 1 nan nan 0 2001 2 1.66571e+01 1.42486e+00 28 2001 3 1.67569e+01 1.44156e+00 68 2001 4 2.15304e+01 2.55945e+00 118 2001 5 2.40601e+01 1.21131e+00 122 2001 6 2.74737e+01 7.00783e-02 16 2001 7 2.82293e+01 1.81146e+00 55 2001 8 2.73211e+01 1.86458e+00 102 2001 9 2.73469e+01 1.63803e+00 117 2001 10 2.20648e+01 1.57833e+00 148 2001 11 1.94728e+01 9.69873e-01 134 2001 12 1.85724e+01 1.88556e+00 141 2002 1 1.57447e+01 6.48912e-02 16 2002 2 1.49227e+01 4.74221e-01 24 2002 3 1.91127e+01 2.99856e+00 15 2002 4 2.33198e+01 2.06454e+00 78 2002 5 2.58211e+01 1.83542e+00 139 2002 6 2.74391e+01 1.14511e+00 118 2002 7 2.93732e+01 1.53981e+00 484 2002 8 2.90823e+01 1.41806e+00 548 2002 9 2.80638e+01 1.60130e+00 431 2002 10 2.65449e+01 2.04765e+00 453 2002 11 1.93793e+01 2.01846e+00 208 2002 12 1.51868e+01 1.13981e+00 147 2003 1 1.28757e+01 8.33207e-01 81 2003 2 1.41638e+01 1.58651e+00 179 2003 3 1.94693e+01 2.00394e+00 316 2003 4 2.06799e+01 2.70672e+00 376 2003 5 2.50391e+01 1.67338e+00 464 2003 6 2.70581e+01 1.83054e+00 349 2003 7 2.84615e+01 1.37371e+00 461 2003 8 2.88642e+01 1.53039e+00 458 2003 9 2.75832e+01 1.51834e+00 471 2003 10 2.28953e+01 1.10055e+00 437 2003 11 2.13078e+01 1.56720e+00 606 2003 12 1.51277e+01 7.39112e-01 15 2004 1 1.41134e+01 8.81869e-01 82 2004 2 1.34048e+01 6.12994e-01 87 2004 3 1.78057e+01 1.56490e+00 358 2004 4 1.97665e+01 2.25935e+00 387 2004 5 2.54597e+01 2.23296e+00 692 2004 6 2.79307e+01 1.53465e+00 479 2004 7 2.95701e+01 1.11340e+00 580 2004 8 2.83719e+01 1.53918e+00 542 2004 9 2.70885e+01 1.64148e+00 492 2004 10 2.45245e+01 1.51710e+00 437 2004 11 2.07497e+01 2.22120e+00 297 2004 12 1.65732e+01 1.49431e+00 111 2005 1 1.32914e+01 1.49171e+00 174 2005 2 1.44701e+01 1.38867e+00 150 2005 3 1.59489e+01 1.40844e+00 281 2005 4 1.98501e+01 1.22021e+00 426 2005 5 2.47643e+01 2.09393e+00 584 2005 6 2.76612e+01 1.55180e+00 523 2005 7 2.95047e+01 1.51996e+00 546 2005 8 2.92713e+01 1.32543e+00 442 2005 9 2.78801e+01 1.28542e+00 666 2005 10 2.46569e+01 2.30105e+00 610 2005 11 1.90410e+01 1.73678e+00 285 2005 12 1.58533e+01 9.57076e-01 105 2006 1 1.50172e+01 1.09720e+00 223 2006 2 1.40258e+01 1.24070e+00 220 2006 3 1.72768e+01 1.31391e+00 400 2006 4 2.18124e+01 2.57020e+00 500 2006 5 2.45560e+01 2.03433e+00 523 2006 6 2.78265e+01 1.69934e+00 589 2006 7 2.97782e+01 1.10887e+00 456 2006 8 2.99640e+01 1.18290e+00 610 2006 9 2.77898e+01 1.50856e+00 552 2006 10 2.46669e+01 2.12290e+00 462 2006 11 1.82792e+01 1.92012e+00 313 2006 12 1.55354e+01 1.18776e+00 102 2007 1 1.39339e+01 1.19618e+00 86 2007 2 1.36260e+01 1.52322e+00 128 2007 3 1.73603e+01 2.34383e+00 401 2007 4 2.01614e+01 1.75735e+00 390 2007 5 2.40818e+01 1.37450e+00 641 2007 6 2.77110e+01 1.61778e+00 456 2007 7 2.85578e+01 1.72296e+00 322 2007 8 2.97978e+01 1.57461e+00 694 2007 9 2.83782e+01 1.25764e+00 508 2007 10 2.51013e+01 2.12300e+00 441 2007 11 1.88678e+01 1.17957e+00 350 2007 12 1.74065e+01 1.52285e+00 239 2008 1 1.43934e+01 7.04941e-01 76 2008 2 1.54499e+01 1.11611e+00 219 2008 3 1.72640e+01 1.37463e+00 351 2008 4 2.10395e+01 1.86907e+00 413 2008 5 2.42743e+01 2.40014e+00 585 2008 6 2.88177e+01 1.29860e+00 538 2008 7 2.87069e+01 1.40254e+00 569 2008 8 2.82153e+01 1.26666e+00 418 2008 9 2.69154e+01 1.73159e+00 549 2008 10 2.30615e+01 1.68461e+00 489 2008 11 1.91634e+01 1.05174e+00 231 2008 12 1.64890e+01 1.20597e+00 125 2009 1 1.47495e+01 1.75134e+00 146 2009 2 1.36164e+01 1.21871e+00 176 2009 3 1.80480e+01 2.36513e+00 290 2009 4 2.15971e+01 2.10557e+00 392 2009 5 2.53766e+01 1.84993e+00 408 2009 6 2.84492e+01 1.96325e+00 724 2009 7 2.85576e+01 1.48405e+00 559 2009 8 2.87432e+01 1.47271e+00 455 2009 9 2.77638e+01 1.40629e+00 536 2009 10 2.49707e+01 2.76425e+00 455 2009 11 1.91263e+01 1.58824e+00 266 2009 12 1.42912e+01 1.42296e+00 48 2010 1 1.34140e+01 9.51222e-01 74 2010 2 1.17126e+01 9.67033e-01 117 2010 3 1.49034e+01 1.63263e+00 221 2010 4 2.10898e+01 1.61511e+00 420 2010 5 2.61130e+01 1.97745e+00 498 2010 6 2.98872e+01 1.56774e+00 667 2010 7 2.95754e+01 1.54717e+00 607 2010 8 2.93355e+01 1.76407e+00 330 2010 9 2.89102e+01 1.38212e+00 684 2010 10 2.31998e+01 1.24805e+00 569 2010 11 1.89083e+01 1.14116e+00 427 2010 12 1.53909e+01 1.83406e+00 233 2011 1 1.20673e+01 1.05334e+00 127 2011 2 1.50941e+01 3.30035e+00 204 2011 3 1.87060e+01 1.98400e+00 357 2011 4 2.28560e+01 1.60871e+00 433 2011 5 2.48796e+01 2.07163e+00 640 2011 6 2.93770e+01 1.14274e+00 617 2011 7 2.95911e+01 1.27051e+00 538 2011 8 3.01970e+01 9.53372e-01 653 2011 9 2.68068e+01 1.15402e+00 612 2011 10 2.29089e+01 1.64430e+00 496 2011 11 1.83200e+01 8.01396e-01 318 2011 12 1.55873e+01 4.25932e-01 98 2012 1 1.51491e+01 1.07148e+00 273 2012 2 1.46795e+01 1.05717e+00 127 2012 3 2.06773e+01 2.38443e+00 379 2012 4 2.25414e+01 1.22865e+00 530 2012 5 2.64373e+01 1.68539e+00 658 2012 6 2.75270e+01 8.64018e-01 512 2012 7 2.83706e+01 1.59424e+00 416 2012 8 2.87285e+01 1.39319e+00 316 2012 9 2.71679e+01 1.49433e+00 646 2012 10 2.38655e+01 1.57560e+00 551 2012 11 1.82846e+01 1.62042e+00 346 2012 12 1.68705e+01 1.39825e+00 187 2013 1 1.60213e+01 1.32614e+00 147 2013 2 1.55335e+01 8.68656e-01 188 2013 3 1.54260e+01 1.41048e+00 395 2013 4 2.05353e+01 1.62207e+00 290 2013 5 2.37640e+01 2.39613e+00 505 2013 6 2.83131e+01 1.22607e+00 512 2013 7 2.82640e+01 1.09670e+00 308 2013 8 2.85018e+01 1.72941e+00 431 2013 9 2.90261e+01 1.42185e+00 618 2013 10 2.40234e+01 2.43866e+00 464 2013 11 1.99303e+01 1.68297e+00 247 2013 12 1.68300e+01 1.85023e+00 90 2014 1 1.18141e+01 5.38918e-01 95 2014 2 1.36851e+01 1.84604e+00 139 2014 3 1.61588e+01 1.51646e+00 240 2014 4 1.96429e+01 2.02808e+00 407 2014 5 2.45392e+01 1.83296e+00 427 2014 6 2.86391e+01 1.62497e+00 575 2014 7 2.80459e+01 1.26243e+00 605 2014 8 2.92693e+01 1.43047e+00 486 2014 9 2.87267e+01 1.60968e+00 464 2014 10 2.44367e+01 1.65284e+00 587 2014 11 1.68810e+01 2.23137e+00 220 2014 12 1.69228e+01 1.19911e+00 127 2015 1 1.39010e+01 5.33921e-01 71 2015 2 1.34002e+01 7.84083e-01 148 2015 3 1.94238e+01 2.03495e+00 237 2015 4 2.23370e+01 1.30407e+00 227 2015 5 2.59119e+01 2.12972e+00 560 2015 6 2.91275e+01 1.44178e+00 505 2015 7 2.92087e+01 1.49065e+00 484 2015 8 2.93988e+01 1.35646e+00 517 2015 9 2.77017e+01 1.45208e+00 426 2015 10 2.32610e+01 1.36872e+00 492 2015 11 2.17934e+01 2.28463e+00 334 2015 12 1.81825e+01 1.52331e+00 167 2016 1 1.40882e+01 8.30287e-01 74 2016 2 1.40913e+01 1.64105e+00 311 2016 3 1.74808e+01 1.46486e+00 307 2016 4 2.10655e+01 1.75599e+00 370 2016 5 2.49062e+01 1.59766e+00 374 2016 6 2.88065e+01 1.32029e+00 545 2016 7 3.02262e+01 1.23179e+00 729 2016 8 2.99446e+01 1.00736e+00 474 2016 9 2.90663e+01 9.27472e-01 569 2016 10 2.50527e+01 1.26763e+00 595 2016 11 2.07140e+01 2.06416e+00 301 2016 12 1.79007e+01 1.23949e+00 158 2017 1 1.63558e+01 1.29822e+00 105 2017 2 1.75316e+01 1.66272e+00 345 2017 3 1.84936e+01 2.21725e+00 419 2017 4 2.25783e+01 1.91692e+00 475 2017 5 2.42750e+01 1.81325e+00 489 2017 6 2.66260e+01 1.68167e+00 303 2017 7 2.93752e+01 1.44786e+00 525 2017 8 2.95741e+01 1.49648e+00 406 2017 9 2.72422e+01 1.65718e+00 491 2017 10 2.48090e+01 2.32203e+00 629 2017 11 2.04417e+01 1.36900e+00 377 2017 12 1.74388e+01 1.64515e+00 137 2018 1 1.39600e+01 5.23808e-02 16 2018 2 2.06148e+01 2.19339e+00 253 2018 3 1.78630e+01 2.01905e+00 446 2018 4 2.05299e+01 1.15095e+00 430 2018 5 2.54732e+01 1.95066e+00 497 2018 6 2.87785e+01 1.94259e+00 562 2018 7 2.94967e+01 1.33638e+00 588 2018 8 2.95195e+01 1.50785e+00 472 2018 9 2.92520e+01 1.63796e+00 741 2018 10 2.64643e+01 2.61901e+00 702 2018 11 2.03198e+01 2.03475e+00 103 2018 12 1.52261e+01 1.38651e+00 129 2019 1 1.55733e+01 9.99433e-01 161 2019 2 1.74806e+01 2.02300e+00 71 2019 3 1.73819e+01 1.38030e+00 307 2019 4 2.07200e+01 1.34135e+00 332 2019 5 2.68470e+01 2.27175e+00 646 2019 6 2.90528e+01 8.99043e-01 503 2019 7 2.93964e+01 1.43050e+00 495 2019 8 2.98667e+01 1.38018e+00 460 2019 9 2.95907e+01 1.13890e+00 804 2019 10 2.73191e+01 2.53270e+00 532 2019 11 1.91045e+01 1.84521e+00 241 2019 12 1.70774e+01 1.45807e+00 174 2020 1 1.59165e+01 1.35907e+00 276 2020 2 1.57233e+01 1.28074e+00 306 2020 3 2.15932e+01 3.92884e+00 431 2020 4 2.26421e+01 1.05293e+00 327 2020 5 2.44597e+01 2.28678e+00 629 2020 6 2.81795e+01 1.21324e+00 472 2020 7 2.96327e+01 1.41474e+00 492 2020 8 3.03772e+01 8.33246e-01 420 2020 9 2.89116e+01 2.29268e+00 392 2020 10 2.44562e+01 1.12888e+00 626 2020 11 2.13790e+01 1.63712e+00 558 2020 12 1.71216e+01 1.16615e+00 115 2021 1 1.51206e+01 8.65738e-01 144 2021 2 1.44227e+01 1.83684e+00 218 2021 3 1.84641e+01 1.96321e+00 361 2021 4 2.06426e+01 1.69539e+00 470 2021 5 2.49942e+01 1.48988e+00 573 2021 6 2.75078e+01 1.56263e+00 318 2021 7 2.99041e+01 1.39572e+00 449 2021 8 3.05448e+01 1.33016e+00 496 2021 9 2.74448e+01 1.49636e+00 496 2021 10 2.46766e+01 1.80801e+00 425 2021 11 1.84311e+01 1.38398e+00 543 2021 12 1.73280e+01 1.17100e+00 429 2022 1 1.40534e+01 1.21831e+00 266 2022 2 1.49970e+01 2.29596e+00 339 2022 3 1.82301e+01 1.34987e+00 582 2022 4 2.23608e+01 1.43930e+00 423 2022 5 2.56636e+01 1.37621e+00 641 2022 6 2.97452e+01 1.53018e+00 598 2022 7 2.98352e+01 1.15077e+00 576 2022 8 3.01228e+01 1.28559e+00 493 2022 9 2.82785e+01 1.32164e+00 633 2022 10 2.28828e+01 1.85730e+00 606 2022 11 2.10434e+01 2.07671e+00 419 2022 12 1.82985e+01 1.70871e+00 347 2023 1 1.58938e+01 1.06170e+00 399 2023 2 1.72613e+01 2.01395e+00 340 2023 3 1.93467e+01 1.90308e+00 278 2023 4 2.19398e+01 1.34833e+00 429 2023 5 2.50883e+01 2.30880e+00 523 2023 6 2.84798e+01 1.95859e+00 501 2023 7 3.03287e+01 1.33611e+00 596 2023 8 3.08699e+01 1.12701e+00 833 2023 9 2.87267e+01 1.29499e+00 655 2023 10 2.38272e+01 2.01079e+00 730 2023 11 1.94137e+01 1.66732e+00 489 2023 12 1.54425e+01 1.46576e+00 116 2024 1 1.31995e+01 9.93496e-01 212 2024 2 1.48519e+01 1.40790e+00 425 2024 3 1.86777e+01 1.17710e+00 322 2024 4 2.10227e+01 1.09454e+00 43