YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 1.97847e+00 5.30070e-01 221 2002 8 3.02998e+00 1.10797e+00 444 2002 9 1.77598e+00 7.27255e-01 503 2002 10 2.49383e+00 6.44632e-01 656 2002 11 1.87219e+00 7.56256e-01 388 2002 12 2.43764e+00 7.72766e-01 483 2003 1 3.45994e+00 1.08723e+00 754 2003 2 3.13047e+00 1.10129e+00 512 2003 3 2.82700e+00 8.37975e-01 550 2003 4 1.89342e+00 3.70863e-01 467 2003 5 2.63978e+00 6.22078e-01 230 2003 6 1.96827e+00 5.97734e-01 250 2003 7 2.42720e+00 9.77074e-01 482 2003 8 2.19464e+00 4.08112e-01 238 2003 9 2.44172e+00 5.14207e-01 650 2003 10 2.00669e+00 4.04637e-01 481 2003 11 1.60565e+00 7.24008e-01 526 2003 12 1.85281e+00 8.55925e-01 694 2004 1 4.81745e+00 5.91632e-01 820 2004 2 4.20584e+00 1.07288e+00 737 2004 3 3.18723e+00 8.46294e-01 560 2004 4 1.17414e+00 5.44985e-01 280 2004 5 2.78449e+00 3.77302e-01 140 2004 6 2.37664e+00 7.58224e-01 335 2004 7 3.20864e+00 1.72154e-01 64 2004 8 2.74247e+00 6.87004e-01 505 2004 9 2.82765e+00 6.79901e-01 466 2004 10 2.10330e+00 5.63052e-01 649 2004 11 2.41681e+00 7.04827e-01 753 2004 12 2.68321e+00 4.18391e-01 445 2005 1 1.39604e+00 5.21575e-01 432 2005 2 2.17844e+00 7.53670e-01 400 2005 3 2.58812e+00 7.49233e-01 558 2005 4 1.70653e+00 5.25967e-01 646 2005 5 1.86535e+00 3.34003e-01 240 2005 6 1.96597e+00 1.02139e+00 337 2005 7 1.95319e+00 6.75168e-01 242 2005 8 2.95906e+00 4.51969e-01 348 2005 9 2.07261e+00 6.03627e-01 796 2005 10 2.04905e+00 8.67370e-01 380 2005 11 2.06661e+00 7.01052e-01 589 2005 12 2.66083e+00 7.08508e-01 747 2006 1 2.99410e+00 7.44110e-01 672 2006 2 3.21430e+00 8.87690e-01 550 2006 3 3.50236e+00 5.65979e-01 648 2006 4 3.54332e+00 1.00603e+00 457 2006 5 2.70615e+00 1.13147e+00 150 2006 6 2.43980e+00 1.28442e-01 136 2006 7 9.46187e-01 6.94017e-01 7 2006 8 2.53251e+00 1.07885e+00 484 2006 9 1.78844e+00 8.21923e-01 487 2006 10 2.43073e+00 4.52755e-01 638 2006 11 2.15007e+00 8.90009e-01 286 2006 12 2.88899e+00 5.92714e-01 487 2007 1 3.46726e+00 8.22403e-01 558 2007 2 4.38894e+00 1.27066e+00 645 2007 3 3.18119e+00 9.35260e-01 648 2007 4 1.91898e+00 6.32626e-01 358 2007 5 1.73760e+00 5.41759e-01 411 2007 6 2.13823e+00 7.71115e-01 102 2007 7 3.03812e+00 1.37471e+00 406 2007 8 2.31188e+00 5.04774e-01 386 2007 9 2.01674e+00 5.35571e-01 676 2007 10 1.86985e+00 4.91635e-01 511 2007 11 2.13462e+00 7.84557e-01 595 2007 12 2.48849e+00 5.89955e-01 340 2008 1 2.77795e+00 1.04100e+00 521 2008 2 3.15560e+00 5.95824e-01 436 2008 3 3.03325e+00 7.59854e-01 623 2008 4 2.16918e+00 1.15550e+00 638 2008 5 2.28266e+00 7.77594e-01 171 2008 6 2.87173e+00 9.33173e-01 211 2008 7 2.97264e+00 7.07209e-01 213 2008 8 2.41142e+00 1.01631e+00 695 2008 9 2.73352e+00 9.89126e-01 783 2008 10 2.27105e+00 9.90276e-01 810 2008 11 2.34515e+00 4.56594e-01 511 2008 12 2.95513e+00 8.15987e-01 407 2009 1 5.03355e+00 7.86153e-01 905 2009 2 5.15177e+00 1.12587e+00 630 2009 3 4.16086e+00 7.70930e-01 660 2009 4 1.86666e+00 7.38638e-01 376 2009 5 2.19820e+00 7.39490e-01 121 2009 6 2.31869e+00 2.63811e-01 167 2009 7 2.27844e+00 7.45411e-01 365 2009 8 2.74237e+00 3.40965e-01 247 2009 9 1.84237e+00 6.76410e-01 623 2009 10 2.71684e+00 6.39901e-01 430 2009 11 2.13305e+00 3.80058e-01 534 2009 12 2.75874e+00 7.06190e-01 505 2010 1 3.60121e+00 1.13126e+00 651 2010 2 3.32168e+00 1.21472e+00 508 2010 3 1.49738e+00 4.10103e-01 580 2010 4 1.46833e+00 2.28464e-01 534 2010 5 2.24049e+00 1.17569e+00 608 2010 6 2.93515e+00 7.61976e-01 242 2010 7 2.53706e+00 8.98405e-01 438 2010 8 2.44531e+00 7.32068e-01 540 2010 9 2.29112e+00 5.79585e-01 674 2010 10 2.54699e+00 3.79115e-01 620 2010 11 2.17138e+00 7.73070e-01 567 2010 12 2.32086e+00 6.22267e-01 346 2011 1 2.81921e+00 1.04745e+00 363 2011 2 4.35240e+00 8.43949e-01 549 2011 3 3.06933e+00 8.42708e-01 598 2011 4 2.48070e+00 9.15121e-01 250 2011 5 1.91413e+00 4.17423e-01 179 2011 6 2.46068e+00 3.16126e-01 129 2011 7 2.14912e+00 1.01749e+00 455 2011 8 3.19915e+00 1.19715e+00 662 2011 9 2.86570e+00 6.75549e-01 437 2011 10 2.15985e+00 3.12995e-01 346 2011 11 2.06326e+00 8.19560e-01 559 2011 12 2.37929e+00 5.01620e-01 493 2012 1 2.90861e+00 1.02959e+00 478 2012 2 3.71390e+00 5.71252e-01 693 2012 3 2.38139e+00 7.23310e-01 729 2012 4 3.64324e+00 1.27741e+00 302 2012 5 2.52332e+00 1.11338e+00 245 2012 6 2.43325e+00 5.94351e-01 389 2012 7 2.79208e+00 5.41364e-01 644 2012 8 2.58314e+00 6.28327e-01 501 2012 9 2.46693e+00 7.71212e-01 736 2012 10 2.35665e+00 7.26584e-01 476 2012 11 1.56911e+00 4.28731e-01 556 2012 12 2.86477e+00 8.06705e-01 254 2013 1 2.78184e+00 5.59332e-01 553 2013 2 2.20095e+00 8.23019e-01 492 2013 3 1.58687e+00 4.28193e-01 191 2013 4 2.63491e+00 4.59903e-01 708 2013 5 2.70406e+00 6.23966e-01 231 2013 6 1.88852e+00 7.41280e-01 234 2013 7 2.72230e+00 6.62338e-01 187 2013 8 2.06930e+00 6.36519e-01 490 2013 9 2.53110e+00 1.02162e+00 1227 2013 10 2.57973e+00 8.33904e-01 577 2013 11 2.24080e+00 5.84076e-01 883 2013 12 2.43273e+00 9.63038e-01 585 2014 1 2.30199e+00 9.55690e-01 564 2014 2 2.85831e+00 8.88511e-01 471 2014 3 3.42727e+00 1.00431e+00 446 2014 4 2.29449e+00 4.22524e-01 493 2014 5 2.29527e+00 7.87272e-01 363 2014 6 2.83715e+00 8.56050e-01 379 2014 7 2.69110e+00 8.47381e-01 217 2014 8 2.54489e+00 6.15724e-01 688 2014 9 2.35724e+00 6.14498e-01 754 2014 10 2.07071e+00 4.90388e-01 503 2014 11 2.36052e+00 9.73003e-01 377 2014 12 2.02217e+00 1.47336e-01 225 2015 1 3.18338e+00 9.42217e-01 535 2015 2 2.30491e+00 1.11169e+00 250 2015 3 3.90060e+00 9.43900e-01 688 2015 4 3.68018e+00 8.55247e-01 539 2015 5 2.40565e+00 9.79318e-01 307 2015 6 3.06980e+00 3.32485e-01 230 2015 7 2.18021e+00 3.50854e-01 157 2015 8 2.77418e+00 7.81564e-01 535 2015 9 2.59429e+00 6.60468e-01 803 2015 10 2.32784e+00 5.58582e-01 712 2015 11 2.24130e+00 5.13983e-01 816 2015 12 2.28910e+00 4.45395e-01 439 2016 1 1.97057e+00 6.43864e-01 563 2016 2 2.05491e+00 4.65378e-01 553 2016 3 2.38886e+00 5.61796e-01 515 2016 4 2.33374e+00 5.57395e-01 653 2016 5 2.66410e+00 2.74806e-01 212 2016 6 3.19993e+00 1.08199e+00 445 2016 7 2.75064e+00 7.95542e-01 343 2016 8 2.59965e+00 8.00150e-01 833 2016 9 2.54809e+00 1.16734e+00 601 2016 10 2.14500e+00 5.97851e-01 534 2016 11 2.15725e+00 4.42429e-01 781 2016 12 1.95913e+00 6.54600e-01 637 2017 1 2.61518e+00 9.61176e-01 520 2017 2 2.79603e+00 9.82042e-01 476 2017 3 2.90008e+00 9.93776e-01 817 2017 4 2.30118e+00 6.21029e-01 463 2017 5 2.25955e+00 5.26122e-01 235 2017 6 2.29424e+00 4.03155e-01 150 2017 7 3.16310e+00 9.58128e-01 435 2017 8 2.09938e+00 4.63249e-01 532 2017 9 2.05413e+00 8.80343e-01 591 2017 10 1.78795e+00 4.83939e-01 809 2017 11 2.35275e+00 7.15043e-01 700 2017 12 2.96029e+00 8.62532e-01 335 2018 1 3.56896e+00 9.22729e-01 568 2018 2 3.42580e+00 7.53043e-01 385 2018 3 2.08578e+00 8.77598e-01 348 2018 4 2.96670e+00 7.03559e-01 526 2018 5 2.11206e+00 1.07788e+00 356 2018 6 2.83202e+00 8.20372e-01 429 2018 7 2.64734e+00 6.39610e-01 598 2018 8 2.32143e+00 1.30684e+00 420 2018 9 2.59942e+00 6.16781e-01 218 2018 10 2.29244e+00 3.24662e-01 453 2018 11 1.99197e+00 4.22217e-01 610 2018 12 2.96582e+00 5.80140e-01 958 2019 1 3.57162e+00 1.01121e+00 616 2019 2 4.12811e+00 6.79156e-01 434 2019 3 4.18764e+00 7.16183e-01 562 2019 4 2.79036e+00 5.40814e-01 415 2019 5 2.11216e+00 8.39390e-01 221 2019 6 2.53584e+00 9.40916e-01 253 2019 7 2.35922e+00 7.73056e-01 494 2019 8 2.20471e+00 6.25558e-01 353 2019 9 1.82606e+00 4.13823e-01 780 2019 10 2.00446e+00 3.54355e-01 275 2019 11 1.95670e+00 6.15495e-01 699 2019 12 2.66459e+00 7.17119e-01 504 2020 1 3.10786e+00 9.27475e-01 638 2020 2 3.36343e+00 8.92026e-01 632 2020 3 2.40732e+00 4.50319e-01 598 2020 4 1.63809e+00 2.33622e-01 317 2020 5 2.70443e+00 8.07362e-01 607 2020 6 2.55403e+00 5.19304e-01 286 2020 7 2.94290e+00 7.15037e-01 480 2020 8 2.70235e+00 1.75888e-01 188 2020 9 1.90042e+00 5.07142e-01 585 2020 10 2.39294e+00 6.70832e-01 603 2020 11 2.54129e+00 4.75240e-01 410 2020 12 1.75070e+00 4.13528e-01 326 2021 1 2.50024e+00 6.47047e-01 504 2021 2 2.88187e+00 9.07631e-01 376 2021 3 2.93962e+00 5.80655e-01 994 2021 4 3.42663e+00 5.29706e-01 497 2021 5 2.43986e+00 8.30150e-01 422 2021 6 3.43709e+00 1.30943e+00 242 2021 7 1.98849e+00 5.57259e-01 142 2021 8 1.98741e+00 9.90306e-01 207 2021 9 2.29846e+00 1.09040e+00 565 2021 10 2.02653e+00 5.81023e-01 574 2021 11 1.85662e+00 2.30712e-01 877 2021 12 1.91926e+00 3.83733e-01 252 2022 1 3.09103e+00 9.43121e-01 358 2022 2 2.91048e+00 9.80525e-01 719 2022 3 3.89284e+00 6.01772e-01 489 2022 4 2.43683e+00 5.27034e-01 229 2022 5 2.43312e+00 8.50763e-01 193 2022 6 3.01003e+00 1.14764e+00 391 2022 7 3.35761e+00 6.41706e-01 553 2022 8 3.21929e+00 4.50675e-01 680 2022 9 2.18854e+00 1.70652e+00 540 2022 10 2.16546e+00 3.67284e-01 973 2022 11 3.09551e+00 6.80210e-01 1009 2022 12 1.78842e+00 5.26522e-01 530 2023 1 2.04952e+00 6.27057e-01 308 2023 2 3.60691e+00 1.05293e+00 469 2023 3 3.06280e+00 8.24124e-01 516 2023 4 3.44407e+00 3.53712e-01 501 2023 5 2.30025e+00 5.93274e-01 323 2023 6 3.18639e+00 1.42454e+00 335 2023 7 3.05458e+00 8.12723e-01 380 2023 8 2.31884e+00 7.48871e-01 564 2023 9 2.37272e+00 8.28452e-01 442 2023 10 2.32197e+00 8.27026e-01 688 2023 11 2.04472e+00 5.19990e-01 655 2023 12 1.83939e+00 6.55783e-01 446 2024 1 2.02016e+00 8.92115e-01 511 2024 2 2.37276e+00 9.60821e-01 958 2024 3 2.32113e+00 5.20293e-01 512 2024 4 nan nan 0