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 1.71810e+01 2.94313e+00 244 2002 8 2.21888e+01 7.33280e+00 518 2002 9 1.34000e+01 7.66467e+00 463 2002 10 1.57942e+01 4.28048e+00 808 2002 11 1.04629e+01 4.44352e+00 806 2002 12 9.76485e+00 4.30860e+00 615 2003 1 7.72522e+00 4.44128e+00 909 2003 2 9.86773e+00 5.36543e+00 512 2003 3 2.69424e-01 2.73147e+00 206 2003 4 1.80260e+01 2.53629e+01 185 2003 5 1.74630e+00 1.77363e+00 134 2003 6 1.42389e+01 1.79833e+01 337 2003 7 9.28200e+00 2.07386e+00 194 2003 8 1.41344e+01 1.12014e+01 387 2003 9 1.73053e+01 6.84806e+00 623 2003 10 1.60303e+01 1.28316e+01 987 2003 11 9.87645e+00 5.89045e+00 1151 2003 12 9.89326e+00 5.54312e+00 832 2004 1 9.93360e+00 5.76850e+00 834 2004 2 1.38193e+01 7.16134e+00 384 2004 3 8.46675e+00 9.34367e+00 796 2004 4 9.17174e+00 5.61279e+00 541 2004 5 1.40064e+01 6.94285e+00 637 2004 6 1.84873e+01 5.67383e+00 479 2004 7 1.07638e+01 6.93223e+00 448 2004 8 1.65870e+01 9.01485e+00 550 2004 9 8.06238e+00 9.38420e+00 277 2004 10 8.33516e+00 1.14265e+01 378 2004 11 6.07041e-01 3.64934e+00 415 2004 12 4.16173e+00 9.82899e+00 567 2005 1 2.91600e+00 4.24512e+00 782 2005 2 1.40654e+00 1.47798e+00 693 2005 3 4.97600e+00 4.06221e+00 512 2005 4 1.18277e+01 1.65075e+01 586 2005 5 1.64149e+01 1.53963e+01 428 2005 6 1.11346e+01 1.24716e+01 439 2005 7 6.95399e+00 9.60387e+00 498 2005 8 1.21468e+01 9.60530e+00 172 2005 9 7.44023e+00 4.57521e+00 382 2005 10 1.31476e+01 8.21182e+00 960 2005 11 1.16228e+01 4.92699e+00 1133 2005 12 1.02942e+01 5.96501e+00 1073 2006 1 4.60526e+00 3.11498e+00 704 2006 2 4.56081e+00 5.16542e+00 704 2006 3 5.30511e+00 8.14130e+00 1004 2006 4 3.98112e+00 2.81255e+00 213 2006 5 1.64053e+01 6.67172e+00 543 2006 6 1.95300e+01 8.95848e+00 466 2006 7 1.25315e+01 4.86400e+00 326 2006 8 2.16373e+01 9.28003e+00 422 2006 9 1.50368e+01 6.75334e+00 618 2006 10 1.69159e+01 8.14020e+00 1007 2006 11 1.53904e+01 8.09682e+00 942 2006 12 1.88312e+01 5.20256e+00 513 2007 1 1.67975e+01 3.90771e+00 419 2007 2 2.08793e+01 7.28324e+00 700 2007 3 1.52508e+01 6.85475e+00 1199 2007 4 1.73892e+01 8.06135e+00 851 2007 5 1.97460e+01 4.97822e+00 256 2007 6 2.05853e+01 4.99107e+00 505 2007 7 1.35540e+01 3.94356e+00 452 2007 8 1.79160e+01 9.23529e+00 587 2007 9 1.27619e+01 5.13781e+00 550 2007 10 1.73360e+01 6.34070e+00 760 2007 11 2.28952e+01 6.17874e+00 1216 2007 12 2.06327e+01 1.01771e+01 754 2008 1 2.22780e+01 9.70194e+00 640 2008 2 1.56319e+01 6.06814e+00 925 2008 3 8.63088e+00 8.65971e+00 710 2008 4 1.08561e+01 1.41973e+01 789 2008 5 9.06153e+00 1.02371e+01 584 2008 6 1.24867e+01 8.61349e+00 391 2008 7 1.83125e+01 1.02065e+01 541 2008 8 1.53719e+01 3.54853e+00 327 2008 9 1.15480e+01 6.18208e+00 496 2008 10 1.04447e+01 5.97203e+00 1004 2008 11 1.23222e+01 6.60014e+00 1086 2008 12 5.40988e+00 4.05136e+00 940 2009 1 9.34881e+00 9.11558e+00 704 2009 2 8.24025e+00 3.73983e+00 1061 2009 3 1.43991e+01 7.13119e+00 884 2009 4 9.32089e+00 7.20481e+00 478 2009 5 6.00032e+00 5.51762e+00 273 2009 6 1.62922e+01 1.05744e+01 398 2009 7 1.77461e+01 9.39907e+00 215 2009 8 1.96638e+01 1.09495e+01 461 2009 9 1.84191e+01 1.10710e+01 743 2009 10 1.76556e+01 6.68731e+00 790 2009 11 1.36306e+01 6.81145e+00 709 2009 12 1.24473e+01 8.76938e+00 215 2010 1 6.71672e+00 4.77684e+00 896 2010 2 2.05551e+00 2.21969e+00 749 2010 3 1.00320e+00 1.06770e+00 832 2010 4 3.50169e+00 4.94805e+00 260 2010 5 1.14698e+01 1.02668e+01 576 2010 6 1.62560e+01 7.80362e+00 593 2010 7 1.33658e+01 8.45638e+00 386 2010 8 1.35123e+01 7.66331e+00 293 2010 9 1.75153e+01 8.12526e+00 602 2010 10 1.42464e+01 6.16284e+00 1598 2010 11 1.62224e+01 5.18342e+00 1105 2010 12 1.51097e+01 8.76749e+00 1133 2011 1 1.87424e+01 6.19688e+00 633 2011 2 1.78925e+01 3.78859e+00 768 2011 3 1.86318e+01 5.45265e+00 867 2011 4 1.63939e+01 5.53306e+00 967 2011 5 1.58441e+01 7.45064e+00 853 2011 6 1.61446e+01 4.86272e+00 250 2011 7 1.61336e+01 5.37267e+00 396 2011 8 2.16010e+01 8.73383e+00 446 2011 9 1.80212e+01 7.87919e+00 768 2011 10 1.86636e+01 8.63916e+00 1059 2011 11 2.51542e+01 7.70873e+00 1151 2011 12 2.60071e+01 5.79624e+00 1066 2012 1 2.23880e+01 9.26484e+00 1143 2012 2 2.16393e+01 5.39868e+00 317 2012 3 2.38451e+01 7.53262e+00 893 2012 4 2.29464e+01 5.39375e+00 894 2012 5 2.18629e+01 4.99078e+00 446 2012 6 1.35005e+01 2.78516e+00 255 2012 7 5.92061e+00 1.11375e+01 469 2012 8 1.36880e+01 1.62737e+01 358 2012 9 5.13559e+00 6.55010e+00 411 2012 10 6.88068e+00 1.58342e+01 807 2012 11 9.78704e+00 5.97160e+00 1042 2012 12 5.06825e+00 4.73199e+00 768 2013 1 9.25202e+00 4.68037e+00 704 2013 2 1.49280e+01 5.71064e+00 704 2013 3 9.88406e+00 5.25944e+00 768 2013 4 1.14736e+01 1.43268e+01 493 2013 5 1.27669e+01 1.02588e+01 494 2013 6 2.06360e+01 1.58251e+01 557 2013 7 3.73014e+00 6.84080e-01 64 2013 8 1.25672e+01 1.52182e+01 435 2013 9 9.58923e+00 1.47813e+01 766 2013 10 1.43101e+01 1.45714e+01 1091 2013 11 7.38362e+00 5.08871e+00 338 2013 12 1.17260e+01 8.14354e+00 574 2014 1 1.32757e+01 3.98598e+00 512 2014 2 5.59517e+00 3.66847e+00 737 2014 3 2.06535e+00 1.40798e+00 637 2014 4 3.28030e+00 2.77629e+00 345 2014 5 1.24918e+01 1.65601e+01 171 2014 6 1.53965e+01 1.53458e+01 216 2014 7 1.20242e+01 8.57585e+00 640 2014 8 1.26384e+01 6.52989e+00 482 2014 9 1.48037e+01 1.16186e+01 360 2014 10 9.60943e+00 9.14949e+00 1381 2014 11 1.17509e+01 5.05099e+00 1088 2014 12 1.43464e+01 7.83118e+00 645 2015 1 1.57006e+01 8.33689e+00 830 2015 2 1.87198e+01 6.05757e+00 782 2015 3 5.24769e+00 6.88510e+00 438 2015 4 1.30262e+01 9.34380e+00 187 2015 5 1.49557e+01 1.29949e+01 723 2015 6 1.73990e+01 9.61266e+00 387 2015 7 1.83613e+01 1.45247e+01 294 2015 8 7.97159e+00 5.40530e+00 463 2015 9 8.73494e+00 5.69457e+00 318 2015 10 9.62971e+00 5.61625e+00 869 2015 11 9.99299e+00 7.32267e+00 814 2015 12 1.40059e+01 6.41944e+00 470 2016 1 8.35302e+00 5.51795e+00 640 2016 2 7.64127e+00 6.00231e+00 1263 2016 3 8.44372e+00 5.22010e+00 823 2016 4 1.02941e+01 1.10785e+01 384 2016 5 7.43344e+00 5.23038e+00 781 2016 6 1.14184e+01 4.61003e+00 560 2016 7 1.22055e+01 7.65026e+00 883 2016 8 1.23207e+01 6.34432e+00 695 2016 9 8.93364e+00 6.06905e+00 876 2016 10 1.55796e+01 9.01838e+00 1096 2016 11 2.17701e+01 4.44123e+00 1136 2016 12 1.90069e+01 5.47692e+00 887 2017 1 1.67611e+01 1.01277e+01 698 2017 2 1.12940e+01 5.56954e+00 1088 2017 3 1.51136e+01 8.53504e+00 1007 2017 4 1.41864e+01 5.62209e+00 786 2017 5 1.04585e+01 4.05400e+00 562 2017 6 2.28334e+01 9.14564e+00 342 2017 7 1.42284e+01 1.15277e+01 193 2017 8 1.09579e+01 8.71015e+00 599 2017 9 9.07936e+00 6.90404e+00 617 2017 10 2.43632e+00 4.89046e+00 448 2017 11 1.21591e+01 6.62872e+00 1338 2017 12 1.34785e+01 5.56666e+00 703 2018 1 1.72371e+01 6.35679e+00 640 2018 2 1.85424e+01 6.08422e+00 567 2018 3 1.53807e+01 7.40417e+00 988 2018 4 1.06203e+01 6.35032e+00 659 2018 5 1.17687e+01 8.23426e+00 509 2018 6 1.16943e+01 1.01947e+01 321 2018 7 1.83442e+01 1.94258e+01 192 2018 8 1.64863e+01 1.30773e+01 414 2018 9 2.05790e+01 1.33303e+01 787 2018 10 1.13394e+01 1.08752e+01 1292 2018 11 3.15553e+00 1.25187e+00 286 2018 12 3.44811e+00 3.62828e+00 735 2019 1 1.25512e+00 1.82482e+00 693 2019 2 4.83872e+00 8.34266e+00 341 2019 3 4.61184e+00 5.12443e+00 771 2019 4 2.42520e+00 2.09027e+00 408 2019 5 1.02955e+01 8.06658e+00 930 2019 6 1.37771e+01 3.15873e+00 247 2019 7 1.41958e+01 8.53268e+00 352 2019 8 1.04443e+01 1.32374e+01 558 2019 9 1.54781e+01 7.05500e+00 820 2019 10 1.12599e+01 8.36885e+00 695 2019 11 1.41514e+01 6.26136e+00 896 2019 12 1.34839e+01 6.79596e+00 576 2020 1 1.41539e+01 6.74043e+00 769 2020 2 1.31726e+01 7.60484e+00 576 2020 3 1.24900e+01 1.07697e+01 753 2020 4 5.60381e+00 3.42284e+00 532 2020 5 1.07919e+01 1.07389e+01 837 2020 6 9.89731e+00 4.94825e+00 509 2020 7 2.11481e+01 1.02064e+01 256 2020 8 1.08886e+01 4.06577e+00 172 2020 9 1.63395e+01 1.92755e+01 387 2020 10 7.02178e+00 7.72480e+00 870 2020 11 2.63267e+00 3.51790e+00 1065 2020 12 8.06529e+00 4.26448e+00 822 2021 1 4.21092e+00 3.04873e+00 704 2021 2 1.02446e+00 7.71915e-01 493 2021 3 7.79861e-01 2.08969e+00 367 2021 4 5.34781e-01 1.08824e+00 501 2021 5 4.84386e+00 8.36567e+00 783 2021 6 2.26466e+01 1.54045e+01 291 2021 7 5.68662e+00 5.29878e+00 132 2021 8 1.99928e+01 2.91058e+01 200 2021 9 1.00435e+01 1.64751e+01 587 2021 10 8.20373e+00 1.01032e+01 665 2021 11 3.67319e+00 6.43919e+00 951 2021 12 5.22681e+00 7.42179e+00 640 2022 1 3.26810e+00 2.59486e+00 896 2022 2 7.73420e+00 4.67362e+00 984 2022 3 6.48451e+00 4.73215e+00 828 2022 4 4.94855e+00 4.14086e+00 128 2022 5 1.03540e+01 9.61366e+00 512 2022 6 1.37166e+01 6.45525e+00 551 2022 7 1.89444e+01 1.23245e+01 341 2022 8 1.90388e+01 6.57978e+00 492 2022 9 1.64505e+01 9.81931e+00 364 2022 10 1.10424e+01 6.52782e+00 1213 2022 11 1.49130e+01 5.90497e+00 511 2022 12 1.37599e+01 8.25194e+00 916 2023 1 1.66965e+01 5.63826e+00 902 2023 2 1.58877e+01 6.13957e+00 681 2023 3 1.50793e+01 6.49742e+00 767 2023 4 1.47176e+01 8.47676e+00 384 2023 5 1.40530e+01 7.70631e+00 322 2023 6 2.31793e+01 4.68216e+00 246 2023 7 1.54705e+01 8.31571e+00 531 2023 8 1.89875e+01 1.50950e+01 648 2023 9 9.03436e+00 8.95417e+00 587 2023 10 1.33327e+01 7.05485e+00 697 2023 11 1.28414e+01 7.98658e+00 704 2023 12 9.22580e+00 7.17664e+00 320 2024 1 1.38955e+00 2.51021e+00 592 2024 2 5.11423e+00 4.70339e+00 576 2024 3 7.89532e+00 8.56091e+00 325 2024 4 nan nan 0