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 3.14870e+01 1.31106e+01 205 2002 8 3.41478e+01 1.13605e+01 435 2002 9 3.09383e+01 1.04833e+01 354 2002 10 2.80659e+01 9.36998e+00 570 2002 11 1.67220e+01 7.64494e+00 700 2002 12 1.90067e+01 9.33896e+00 576 2003 1 1.03598e+01 1.01922e+01 894 2003 2 1.88191e+01 1.19776e+01 576 2003 3 nan nan 0 2003 4 2.24398e+00 1.82990e+00 118 2003 5 1.25530e+00 1.88263e+00 130 2003 6 1.03947e+01 1.56331e+01 130 2003 7 4.40599e-02 1.16163e-01 32 2003 8 2.68084e+01 2.86411e+01 256 2003 9 1.05751e+01 1.32367e+01 230 2003 10 1.50871e+01 1.19314e+01 818 2003 11 1.20348e+01 1.16483e+01 863 2003 12 1.79883e+01 1.07475e+01 770 2004 1 1.76314e+01 8.85043e+00 828 2004 2 1.69197e+01 8.79540e+00 384 2004 3 1.05498e+01 1.11984e+01 330 2004 4 2.28458e+01 1.02724e+01 320 2004 5 3.18796e+01 8.88823e+00 615 2004 6 2.89191e+01 9.15270e+00 511 2004 7 2.22882e+01 9.91358e+00 255 2004 8 2.28592e+01 7.86074e+00 402 2004 9 3.75159e+01 3.85264e+01 116 2004 10 8.58249e+00 4.51443e+00 38 2004 11 3.08651e-01 4.21790e-01 63 2004 12 1.35867e+00 1.71106e+00 269 2005 1 5.71163e+00 6.59378e+00 516 2005 2 6.16194e+00 3.80305e+00 353 2005 3 7.86353e+00 7.25202e+00 316 2005 4 3.02420e+00 3.69990e+00 64 2005 5 nan nan 0 2005 6 1.81102e+01 7.59347e+00 74 2005 7 2.05384e+01 1.44019e+01 90 2005 8 1.21943e+00 1.09534e+00 26 2005 9 1.56389e+01 1.01640e+01 319 2005 10 1.66829e+01 1.00450e+01 859 2005 11 1.51928e+01 1.09547e+01 958 2005 12 1.26849e+01 7.50919e+00 944 2006 1 3.98438e+00 3.99870e+00 506 2006 2 1.92239e+00 2.52164e+00 443 2006 3 9.75398e+00 1.63556e+01 566 2006 4 1.20070e+01 7.42609e+00 325 2006 5 2.45894e+01 1.36509e+01 388 2006 6 2.15341e+01 7.08709e+00 291 2006 7 1.87683e+01 6.81845e+00 130 2006 8 2.50254e+01 8.25773e+00 303 2006 9 2.75313e+01 9.67392e+00 803 2006 10 2.98696e+01 1.32638e+01 792 2006 11 2.61055e+01 1.24854e+01 766 2006 12 3.32975e+01 1.31765e+01 627 2007 1 3.78909e+01 1.09829e+01 384 2007 2 2.74943e+01 1.22281e+01 632 2007 3 2.90589e+01 1.14543e+01 897 2007 4 2.60392e+01 8.82662e+00 606 2007 5 3.19345e+01 5.83961e+00 146 2007 6 3.34136e+01 6.25582e+00 277 2007 7 2.14014e+01 9.51757e+00 410 2007 8 2.26815e+01 1.45876e+01 449 2007 9 2.88617e+01 1.30239e+01 424 2007 10 2.33481e+01 8.04989e+00 589 2007 11 2.06050e+01 1.39721e+01 1054 2007 12 2.67387e+01 1.48522e+01 865 2008 1 2.43641e+01 1.35070e+01 762 2008 2 2.00108e+01 1.05256e+01 782 2008 3 9.05575e+00 2.01259e+01 414 2008 4 1.33299e+01 1.88983e+01 353 2008 5 8.88189e+00 8.13597e+00 372 2008 6 2.85300e+01 1.28741e+01 448 2008 7 2.97897e+01 1.05973e+01 370 2008 8 2.10772e+01 1.03646e+01 302 2008 9 1.46962e+01 1.03499e+01 172 2008 10 8.12821e+00 8.74571e+00 772 2008 11 1.85214e+01 1.03157e+01 948 2008 12 9.20013e+00 6.33414e+00 945 2009 1 1.10775e+01 5.31208e+00 575 2009 2 1.81591e+01 8.75908e+00 886 2009 3 2.42374e+01 1.23197e+01 834 2009 4 9.65377e+00 9.10685e+00 320 2009 5 6.33919e+00 3.38669e+00 54 2009 6 3.80012e+01 9.95762e+00 246 2009 7 1.01485e-01 0.00000e+00 4 2009 8 2.37375e+01 2.19018e+01 513 2009 9 1.89130e+01 1.53067e+01 573 2009 10 2.02263e+01 1.04984e+01 720 2009 11 2.50987e+01 1.01425e+01 810 2009 12 1.48765e+01 3.78192e+00 192 2010 1 1.23792e+01 8.70256e+00 787 2010 2 8.64048e+00 1.63353e+01 309 2010 3 2.94163e+00 3.94714e+00 540 2010 4 4.24712e+00 7.91673e+00 171 2010 5 2.07414e+01 1.24427e+01 379 2010 6 2.29206e+01 1.02119e+01 561 2010 7 1.75793e+01 1.28027e+01 370 2010 8 1.27317e+01 9.29597e+00 296 2010 9 1.96352e+01 1.18689e+01 570 2010 10 2.42519e+01 1.04837e+01 1515 2010 11 2.39689e+01 1.10992e+01 1188 2010 12 2.59650e+01 1.48246e+01 880 2011 1 2.67777e+01 1.66417e+01 683 2011 2 3.61563e+01 9.97596e+00 757 2011 3 2.99661e+01 1.33232e+01 858 2011 4 2.94330e+01 9.15416e+00 645 2011 5 3.44047e+01 1.18090e+01 729 2011 6 2.71572e+01 8.92264e+00 256 2011 7 3.46427e+01 5.73676e+00 448 2011 8 3.55351e+01 8.01309e+00 240 2011 9 3.40388e+01 8.63840e+00 670 2011 10 3.00539e+01 1.45064e+01 898 2011 11 3.31907e+01 1.18027e+01 1073 2011 12 3.51905e+01 1.16868e+01 856 2012 1 3.45951e+01 1.46651e+01 956 2012 2 4.16513e+01 1.37558e+01 213 2012 3 3.13019e+01 2.04175e+01 748 2012 4 2.75875e+01 1.29613e+01 777 2012 5 3.11374e+01 1.10387e+01 331 2012 6 2.42191e+01 6.80243e+00 128 2012 7 4.17831e+00 0.00000e+00 2 2012 8 1.56065e+00 4.77780e+00 144 2012 9 7.66080e+00 6.01642e+00 123 2012 10 1.78578e+00 7.23082e+00 147 2012 11 2.38650e+01 1.52253e+01 793 2012 12 1.52239e+01 8.61024e+00 498 2013 1 2.56665e+01 1.38608e+01 627 2013 2 2.48208e+01 5.52194e+00 448 2013 3 9.27186e+00 1.20524e+01 543 2013 4 9.46697e+00 1.94404e+01 197 2013 5 2.65497e+01 9.46881e+00 149 2013 6 2.36517e+01 2.58100e+01 290 2013 7 nan nan 0 2013 8 4.32031e+00 1.00440e+01 61 2013 9 3.63118e+00 8.75712e+00 23 2013 10 1.41435e+01 1.59873e+01 742 2013 11 1.24233e+01 1.04710e+01 316 2013 12 1.70113e+01 8.97575e+00 641 2014 1 9.36397e+00 7.36051e+00 334 2014 2 3.33612e+00 3.47912e+00 521 2014 3 1.18338e+01 1.57626e+01 331 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 2.36600e+01 2.90251e+01 83 2014 7 8.63524e+00 1.16784e+01 394 2014 8 1.84677e+01 6.71664e+00 389 2014 9 3.24864e+01 1.19208e+01 158 2014 10 4.22442e+00 7.49800e+00 594 2014 11 1.67842e+01 1.07122e+01 912 2014 12 2.24012e+01 1.44081e+01 749 2015 1 5.33982e+00 6.00698e+00 547 2015 2 8.62163e+00 1.24161e+01 593 2015 3 6.05861e+00 9.59352e+00 263 2015 4 5.64254e+00 4.48861e+00 64 2015 5 2.28271e+01 1.67315e+01 464 2015 6 3.20152e+01 1.01590e+01 374 2015 7 1.70071e+01 1.09729e+01 168 2015 8 1.77047e+01 1.57690e+01 163 2015 9 3.37172e+00 3.49065e+00 120 2015 10 1.09107e+01 7.12442e+00 632 2015 11 1.25138e+01 8.56987e+00 601 2015 12 2.02578e+01 1.11721e+01 446 2016 1 1.00570e+01 7.93941e+00 473 2016 2 6.15969e+00 8.83628e+00 881 2016 3 4.37412e+00 3.27596e+00 683 2016 4 9.08775e+00 4.06112e+00 251 2016 5 1.64191e+01 5.65081e+00 520 2016 6 2.63284e+01 9.84785e+00 556 2016 7 2.14396e+01 8.86007e+00 770 2016 8 3.35690e+01 1.07540e+01 554 2016 9 1.17082e+01 1.87778e+01 462 2016 10 1.33634e+01 1.03867e+01 825 2016 11 2.58917e+01 8.56433e+00 890 2016 12 3.03342e+01 1.11363e+01 860 2017 1 2.09615e+01 8.93798e+00 570 2017 2 5.94822e+00 6.51627e+00 653 2017 3 1.86005e+01 1.57052e+01 900 2017 4 2.90006e+01 1.18238e+01 712 2017 5 2.65273e+01 9.21915e+00 450 2017 6 3.98199e+01 8.95835e+00 307 2017 7 nan nan 0 2017 8 1.34014e+01 1.95010e+01 442 2017 9 5.31295e+00 6.25852e+00 218 2017 10 8.08838e+00 4.78267e+00 129 2017 11 1.16455e+01 9.83444e+00 956 2017 12 1.76286e+01 9.64819e+00 616 2018 1 1.75805e+01 7.33448e+00 693 2018 2 2.65892e+01 1.09805e+01 640 2018 3 2.06065e+01 1.50948e+01 942 2018 4 2.02406e+01 1.04784e+01 494 2018 5 3.29745e+01 7.70013e+00 384 2018 6 1.07466e+01 1.15309e+01 207 2018 7 5.31555e+01 1.05572e+01 33 2018 8 1.62788e+01 1.16892e+01 250 2018 9 2.69757e+01 2.07449e+01 643 2018 10 1.07820e+01 7.98748e+00 1007 2018 11 1.26420e+01 8.76977e+00 406 2018 12 9.52470e+00 9.59995e+00 335 2019 1 2.47372e+01 3.83322e+01 199 2019 2 1.04341e+01 6.95754e+00 128 2019 3 5.22366e+00 9.10880e+00 572 2019 4 9.86009e+00 7.84764e+00 302 2019 5 2.55657e+01 1.42122e+01 644 2019 6 3.15585e+01 1.50997e+01 137 2019 7 3.54838e+01 1.46272e+01 162 2019 8 1.06540e+01 1.68997e+01 279 2019 9 1.34293e+01 9.85829e+00 597 2019 10 2.05246e+01 7.52658e+00 552 2019 11 2.38060e+01 7.70140e+00 712 2019 12 1.67363e+01 1.08289e+01 369 2020 1 1.38360e+01 7.57051e+00 655 2020 2 1.39131e+01 7.66300e+00 568 2020 3 1.00117e+01 6.15805e+00 280 2020 4 6.96027e+00 2.36814e+00 190 2020 5 1.44045e+01 1.25437e+01 277 2020 6 2.81173e+00 3.15417e+00 62 2020 7 1.45277e+01 7.95338e+00 68 2020 8 1.11333e+01 3.40660e+00 56 2020 9 1.65413e+01 1.04325e+01 102 2020 10 1.19505e+01 1.26734e+01 489 2020 11 7.06700e+00 5.93538e+00 689 2020 12 1.39754e+01 5.95182e+00 600 2021 1 9.09287e+00 7.88695e+00 261 2021 2 5.13960e+00 4.30935e+00 319 2021 3 1.63618e-01 1.82575e-01 13 2021 4 3.10553e+00 2.99378e+00 22 2021 5 1.31122e+01 1.14623e+01 504 2021 6 3.83716e+01 2.02074e+01 192 2021 7 2.79590e+01 2.90195e+01 141 2021 8 1.65012e+01 2.63590e+01 33 2021 9 2.32239e+01 4.18463e+00 64 2021 10 6.13218e+00 5.53145e+00 109 2021 11 7.62094e+00 5.80251e+00 705 2021 12 1.06277e+01 1.27866e+01 723 2022 1 5.44682e+00 3.50888e+00 590 2022 2 1.29165e+01 6.65664e+00 955 2022 3 1.19588e+01 7.94852e+00 829 2022 4 7.45889e-01 2.12125e+00 37 2022 5 1.52273e+01 1.15438e+01 347 2022 6 1.97562e+01 1.33236e+01 349 2022 7 3.66948e+01 1.60587e+01 424 2022 8 2.33836e+01 1.91771e+01 404 2022 9 1.58463e+01 3.06722e+00 63 2022 10 1.89181e+01 1.35230e+01 790 2022 11 1.79472e+01 7.37189e+00 429 2022 12 2.09005e+01 1.30210e+01 709 2023 1 2.86142e+01 9.13421e+00 733 2023 2 2.18310e+01 8.62925e+00 700 2023 3 8.95020e+00 7.34674e+00 637 2023 4 2.31377e+01 2.34957e+01 384 2023 5 2.73608e+01 1.58160e+01 320 2023 6 1.98354e+01 1.01714e+01 320 2023 7 1.02310e+01 9.24331e+00 219 2023 8 2.25883e+01 1.92371e+01 225 2023 9 2.28035e+01 3.21125e+01 313 2023 10 1.49089e+01 1.43543e+01 414 2023 11 1.43122e+01 9.63195e+00 493 2023 12 1.29690e+01 4.33267e+00 132 2024 1 7.42414e-03 1.84300e-02 88 2024 2 3.16086e+00 4.30435e+00 383 2024 3 6.48164e+00 7.83500e+00 342 2024 4 nan nan 0