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 1.90186e+01 5.08294e+00 161 2002 8 1.92873e+01 8.19264e+00 504 2002 9 1.58401e+01 5.90233e+00 423 2002 10 1.70338e+01 6.52417e+00 806 2002 11 1.03085e+01 5.74147e+00 979 2002 12 5.88733e+00 3.55948e+00 794 2003 1 3.16621e+00 2.43638e+00 973 2003 2 8.01939e+00 4.46814e+00 640 2003 3 1.39759e-06 1.85949e-06 39 2003 4 1.71932e+01 2.45887e+01 238 2003 5 3.33012e+01 3.05958e+01 136 2003 6 2.37066e+01 2.23385e+01 406 2003 7 8.14601e+00 2.60403e+00 51 2003 8 6.15283e+00 7.50598e+00 206 2003 9 2.17485e+01 1.55394e+01 552 2003 10 9.91849e+00 7.86075e+00 941 2003 11 1.17522e+01 6.53444e+00 1009 2003 12 4.96573e+00 4.53986e+00 924 2004 1 5.40054e+00 3.01185e+00 643 2004 2 1.09186e+01 3.65308e+00 308 2004 3 4.79865e+00 5.10561e+00 620 2004 4 6.03953e+00 5.09795e+00 527 2004 5 8.18811e+00 3.87400e+00 500 2004 6 1.21042e+01 6.66216e+00 334 2004 7 6.52907e+00 5.34788e+00 356 2004 8 1.61488e+01 7.93049e+00 413 2004 9 1.03368e+01 8.84324e+00 509 2004 10 1.01029e+00 2.96871e+00 258 2004 11 1.63366e+00 5.22593e+00 512 2004 12 6.89478e-01 1.33299e+00 575 2005 1 6.17385e+00 8.81039e+00 699 2005 2 2.41100e+00 2.04660e+00 475 2005 3 3.59904e+00 2.44837e+00 583 2005 4 9.33883e+00 1.19683e+01 256 2005 5 1.57918e+01 1.47708e+01 391 2005 6 1.31869e+01 1.62520e+01 381 2005 7 6.58802e+00 1.12140e+01 314 2005 8 6.03897e+00 6.15957e+00 128 2005 9 1.30660e+01 7.95459e+00 390 2005 10 1.07928e+01 7.91621e+00 957 2005 11 1.00319e+01 5.23999e+00 1223 2005 12 7.95032e+00 3.75633e+00 1024 2006 1 6.05910e+00 4.07877e+00 1076 2006 2 4.32692e+00 3.16883e+00 798 2006 3 3.09080e+00 7.08952e+00 1015 2006 4 1.60176e+00 2.50203e+00 571 2006 5 1.39071e+01 7.51536e+00 637 2006 6 1.21934e+01 6.68028e+00 279 2006 7 1.13576e+01 9.79678e+00 487 2006 8 1.04421e+01 7.00673e+00 392 2006 9 1.29818e+01 8.14484e+00 684 2006 10 1.47041e+01 7.09111e+00 1071 2006 11 1.34612e+01 5.51482e+00 907 2006 12 1.48174e+01 8.25548e+00 636 2007 1 1.90342e+01 5.80628e+00 576 2007 2 1.48616e+01 4.34712e+00 935 2007 3 1.61441e+01 4.60449e+00 1048 2007 4 1.38549e+01 5.50862e+00 831 2007 5 1.52737e+01 5.21142e+00 263 2007 6 1.53694e+01 3.59107e+00 279 2007 7 1.03432e+01 4.40168e+00 415 2007 8 1.34066e+01 4.33446e+00 462 2007 9 1.86765e+01 6.30159e+00 588 2007 10 2.46296e+01 4.06889e+00 640 2007 11 2.34311e+01 4.23672e+00 1135 2007 12 2.40739e+01 8.36073e+00 763 2008 1 2.32016e+01 6.38629e+00 938 2008 2 2.55674e+01 5.60290e+00 1185 2008 3 1.34847e+01 7.72768e+00 970 2008 4 7.73926e+00 1.21515e+01 506 2008 5 7.28073e+00 6.74709e+00 618 2008 6 1.28849e+01 1.41616e+01 528 2008 7 1.73844e+01 1.04760e+01 366 2008 8 8.19368e+00 2.67048e+00 192 2008 9 1.22484e+01 1.21492e+01 695 2008 10 8.58174e+00 6.00913e+00 1077 2008 11 7.89876e+00 5.00880e+00 889 2008 12 5.61134e+00 4.78069e+00 802 2009 1 6.32282e+00 4.66016e+00 704 2009 2 5.69056e+00 2.89917e+00 958 2009 3 1.34170e+01 5.15139e+00 894 2009 4 7.14791e+00 5.76046e+00 674 2009 5 9.14607e+00 5.94965e+00 91 2009 6 1.60081e+01 1.42167e+01 509 2009 7 1.71818e+01 1.54052e+01 332 2009 8 1.00729e+01 6.46862e+00 512 2009 9 1.83038e+01 1.40330e+01 722 2009 10 1.28205e+01 6.24275e+00 925 2009 11 9.27328e+00 4.49806e+00 525 2009 12 6.53183e+00 5.05879e+00 192 2010 1 1.79400e+00 1.65810e+00 956 2010 2 2.85332e+00 6.20599e+00 832 2010 3 7.39348e-01 1.37422e+00 739 2010 4 1.92962e+00 3.41915e+00 344 2010 5 1.41463e+01 1.74327e+01 554 2010 6 1.38073e+01 7.96736e+00 574 2010 7 1.18693e+01 9.74457e+00 401 2010 8 1.32056e+01 5.84245e+00 313 2010 9 1.12008e+01 6.66688e+00 722 2010 10 7.63981e+00 5.91317e+00 1566 2010 11 1.39147e+01 6.89730e+00 1241 2010 12 1.20912e+01 5.53307e+00 1088 2011 1 1.45224e+01 2.70586e+00 680 2011 2 1.41852e+01 5.04606e+00 576 2011 3 1.38502e+01 3.76075e+00 860 2011 4 6.99497e+00 5.60699e+00 821 2011 5 1.07455e+01 6.33010e+00 597 2011 6 8.03763e+00 4.14300e+00 317 2011 7 8.68895e+00 3.79219e+00 296 2011 8 1.35355e+01 8.86418e+00 698 2011 9 1.89239e+01 7.88301e+00 749 2011 10 1.94477e+01 6.22763e+00 1093 2011 11 2.44572e+01 5.28239e+00 1083 2011 12 2.54596e+01 3.87188e+00 1044 2012 1 1.92373e+01 7.62182e+00 1109 2012 2 2.45654e+01 3.35698e+00 318 2012 3 1.84182e+01 6.03256e+00 893 2012 4 1.48450e+01 6.02984e+00 845 2012 5 1.69465e+01 3.45391e+00 551 2012 6 7.95389e+00 6.65521e+00 306 2012 7 1.53144e+01 2.00706e+01 125 2012 8 5.14938e+00 4.88919e+00 153 2012 9 2.39288e+00 3.36473e+00 510 2012 10 7.74497e+00 9.04999e+00 748 2012 11 3.89082e+00 4.49938e+00 1065 2012 12 5.14001e+00 3.01866e+00 545 2013 1 1.06875e+01 7.35105e+00 771 2013 2 1.23933e+01 3.85532e+00 628 2013 3 6.97679e+00 6.67977e+00 706 2013 4 1.14277e+01 1.03279e+01 368 2013 5 4.61456e+00 4.15700e+00 524 2013 6 1.65595e+01 1.42133e+01 335 2013 7 7.02004e+00 2.28618e+00 128 2013 8 1.82590e+01 2.05446e+01 118 2013 9 1.26635e+01 1.88839e+01 575 2013 10 1.49865e+01 1.48138e+01 916 2013 11 7.73815e+00 5.51200e+00 574 2013 12 1.78821e+01 7.22285e+00 874 2014 1 7.02202e+00 3.72017e+00 448 2014 2 2.91654e+00 2.04563e+00 640 2014 3 3.34440e+00 5.27732e+00 607 2014 4 8.02813e-01 8.76598e-01 279 2014 5 nan nan 0 2014 6 1.64849e+01 1.08947e+01 174 2014 7 1.13040e+01 1.20683e+01 400 2014 8 1.29710e+01 7.00778e+00 406 2014 9 2.57227e+01 1.01439e+01 393 2014 10 9.07429e+00 6.92026e+00 1354 2014 11 1.06954e+01 5.73285e+00 1024 2014 12 1.55606e+01 7.93901e+00 834 2015 1 1.36341e+01 9.71008e+00 927 2015 2 4.84877e+00 4.07958e+00 789 2015 3 7.13042e+00 7.11461e+00 345 2015 4 7.42746e-01 9.33312e-01 176 2015 5 4.66586e+00 6.06756e+00 670 2015 6 1.21642e+01 1.21831e+01 637 2015 7 2.33934e+01 1.22272e+01 215 2015 8 7.40504e+00 2.89491e+00 446 2015 9 9.14165e+00 6.85944e+00 346 2015 10 8.37061e+00 4.92738e+00 837 2015 11 5.88807e+00 6.63459e+00 762 2015 12 1.18056e+01 3.99989e+00 448 2016 1 1.39578e+01 5.97983e+00 698 2016 2 5.17114e+00 4.84975e+00 1216 2016 3 3.71170e+00 3.41710e+00 724 2016 4 6.95798e+00 7.82644e+00 510 2016 5 6.02711e+00 5.48769e+00 530 2016 6 9.11384e+00 1.01416e+01 506 2016 7 8.12065e+00 6.77553e+00 737 2016 8 7.11371e+00 5.05455e+00 722 2016 9 1.28641e+01 1.43498e+01 882 2016 10 9.17020e+00 8.79044e+00 969 2016 11 1.49180e+01 9.45925e+00 947 2016 12 1.80177e+01 5.44707e+00 748 2017 1 1.80931e+01 6.42689e+00 704 2017 2 1.10618e+01 4.76922e+00 1151 2017 3 1.22010e+01 5.82887e+00 973 2017 4 1.01454e+01 4.95934e+00 693 2017 5 1.14431e+01 3.79805e+00 415 2017 6 1.72011e+01 1.60603e+01 320 2017 7 9.05946e+00 5.01042e+00 250 2017 8 1.48146e+01 1.35136e+01 529 2017 9 9.94605e+00 7.89737e+00 677 2017 10 1.84737e+00 2.31877e+00 716 2017 11 1.29900e+01 8.88627e+00 1080 2017 12 1.29583e+01 7.30555e+00 760 2018 1 1.16904e+01 3.40684e+00 880 2018 2 7.92114e+00 5.47158e+00 445 2018 3 7.44001e+00 8.36001e+00 904 2018 4 5.79943e+00 6.42133e+00 612 2018 5 7.03917e+00 6.72665e+00 498 2018 6 6.52527e+00 8.05518e+00 347 2018 7 2.73425e+01 1.57600e+01 377 2018 8 1.08756e+01 1.44434e+01 493 2018 9 1.27345e+01 1.10790e+01 831 2018 10 1.22253e+01 1.05357e+01 902 2018 11 2.92857e+00 1.49273e+00 256 2018 12 2.12203e+00 2.34744e+00 690 2019 1 7.14875e+00 1.31740e+01 769 2019 2 6.26113e+00 2.09541e+00 47 2019 3 3.09518e+00 5.64348e+00 542 2019 4 1.20753e+00 8.93810e-01 419 2019 5 9.57599e+00 7.84695e+00 760 2019 6 1.41966e+01 1.32808e+01 369 2019 7 8.48208e+00 7.12842e+00 320 2019 8 1.39547e+01 1.60040e+01 704 2019 9 4.24579e+00 5.01922e+00 641 2019 10 1.02773e+01 7.87174e+00 707 2019 11 1.44045e+01 8.03131e+00 747 2019 12 9.93440e+00 7.27427e+00 523 2020 1 8.15616e+00 3.85600e+00 638 2020 2 1.30191e+01 5.84174e+00 633 2020 3 1.27950e+01 6.76830e+00 711 2020 4 6.99104e+00 2.51695e+00 448 2020 5 4.56497e+00 6.16967e+00 686 2020 6 6.36490e+00 8.29123e+00 522 2020 7 1.97176e+01 2.42663e+01 307 2020 8 8.34229e+00 3.65813e+00 181 2020 9 1.53812e+01 1.70513e+01 343 2020 10 7.57467e+00 1.39138e+01 503 2020 11 5.95970e+00 8.07103e+00 708 2020 12 4.02173e+00 3.63067e+00 552 2021 1 2.43892e+00 2.80022e+00 632 2021 2 1.41656e+00 1.50711e+00 576 2021 3 1.56218e+00 2.70002e+00 415 2021 4 3.89293e-02 6.53225e-02 240 2021 5 4.64180e+00 6.62377e+00 558 2021 6 2.06541e+01 1.97938e+01 274 2021 7 2.32976e+01 3.31974e+00 62 2021 8 1.89319e+00 3.04504e+00 157 2021 9 6.95206e+00 1.22453e+01 500 2021 10 1.05338e+01 5.65763e+00 363 2021 11 3.07882e+00 5.63161e+00 611 2021 12 1.07763e+01 1.37390e+01 429 2022 1 2.19727e+00 2.11367e+00 896 2022 2 3.41098e+00 3.43374e+00 697 2022 3 4.47795e+00 4.15526e+00 685 2022 4 1.81412e+00 7.63420e-01 101 2022 5 5.36272e+00 6.58120e+00 415 2022 6 1.20112e+01 7.59360e+00 486 2022 7 1.80162e+01 1.49721e+01 160 2022 8 1.60668e+01 1.10727e+01 565 2022 9 1.48274e+01 7.96743e+00 390 2022 10 3.69477e+00 4.36376e+00 1286 2022 11 1.12017e+01 7.29663e+00 500 2022 12 1.23060e+01 6.12077e+00 1054 2023 1 1.36736e+01 5.37967e+00 896 2023 2 1.52070e+01 3.15180e+00 563 2023 3 1.09239e+01 6.01044e+00 832 2023 4 1.25398e+01 8.93346e+00 320 2023 5 1.07599e+01 7.32527e+00 396 2023 6 2.09162e+01 4.48468e+00 433 2023 7 2.17823e+01 1.25540e+01 204 2023 8 1.93920e+01 1.43960e+01 540 2023 9 9.20919e+00 1.07803e+01 573 2023 10 8.04941e+00 7.62812e+00 653 2023 11 9.13941e+00 9.22532e+00 551 2023 12 2.16698e+00 2.57833e+00 319 2024 1 4.45649e-01 4.86847e-01 448 2024 2 4.63944e+00 5.10067e+00 392 2024 3 8.31757e+00 1.45415e+01 425 2024 4 nan nan 0