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 2.54355e+01 9.31706e+00 272 2002 8 3.07382e+01 1.11066e+01 512 2002 9 2.27457e+01 1.25522e+01 324 2002 10 2.25690e+01 9.03090e+00 750 2002 11 1.41115e+01 7.80786e+00 745 2002 12 1.61339e+01 1.09588e+01 629 2003 1 1.05796e+01 8.57987e+00 916 2003 2 1.55050e+01 1.02518e+01 510 2003 3 1.83520e-07 6.59894e-07 14 2003 4 nan nan 0 2003 5 2.84010e+00 3.76528e+00 131 2003 6 1.45390e+01 1.41766e+01 256 2003 7 4.18977e+01 2.63831e+01 141 2003 8 3.30168e+01 2.66687e+01 203 2003 9 2.57571e+01 1.63629e+01 262 2003 10 1.63805e+01 1.66790e+01 839 2003 11 9.85174e+00 9.20936e+00 1004 2003 12 1.79839e+01 1.18345e+01 788 2004 1 1.18770e+01 7.75891e+00 809 2004 2 1.34818e+01 8.63019e+00 384 2004 3 9.32350e+00 1.23984e+01 611 2004 4 1.80793e+01 8.21919e+00 380 2004 5 2.50755e+01 9.95552e+00 640 2004 6 2.86431e+01 1.18654e+01 556 2004 7 1.89385e+01 8.35604e+00 340 2004 8 1.70960e+01 9.87467e+00 346 2004 9 1.95531e+01 2.44063e+01 186 2004 10 3.66358e+00 7.08627e+00 64 2004 11 4.70205e-01 3.37297e-01 92 2004 12 7.07079e-01 7.82098e-01 394 2005 1 3.41643e+00 4.27458e+00 619 2005 2 4.25030e+00 4.25169e+00 502 2005 3 4.00774e+00 5.35885e+00 410 2005 4 8.91132e+00 2.34457e+01 252 2005 5 3.64039e+01 9.34059e-01 15 2005 6 1.10364e+01 8.18891e+00 258 2005 7 8.17153e+00 7.07847e+00 197 2005 8 1.40801e+00 4.99914e-01 64 2005 9 2.12959e+01 1.66546e+01 384 2005 10 1.70399e+01 9.27754e+00 896 2005 11 1.00980e+01 8.59704e+00 998 2005 12 8.87413e+00 6.20882e+00 1091 2006 1 4.46047e+00 4.53254e+00 554 2006 2 2.25083e+00 4.26277e+00 538 2006 3 7.05715e+00 1.20670e+01 920 2006 4 1.23018e+01 7.27859e+00 245 2006 5 2.13796e+01 9.63214e+00 384 2006 6 2.38885e+01 5.37670e+00 396 2006 7 1.89877e+01 4.03779e+00 256 2006 8 1.84161e+01 4.02763e+00 373 2006 9 2.40311e+01 8.82065e+00 816 2006 10 2.39053e+01 1.26798e+01 920 2006 11 1.82488e+01 1.01264e+01 840 2006 12 2.48980e+01 1.13245e+01 579 2007 1 3.17323e+01 6.77915e+00 375 2007 2 2.50101e+01 1.34901e+01 704 2007 3 2.22504e+01 1.07516e+01 981 2007 4 2.50736e+01 1.31233e+01 579 2007 5 3.40727e+01 3.39429e+00 185 2007 6 3.10023e+01 7.61348e+00 367 2007 7 2.10343e+01 7.02335e+00 485 2007 8 2.26676e+01 1.02904e+01 540 2007 9 2.25570e+01 6.98914e+00 460 2007 10 1.81983e+01 1.26260e+01 610 2007 11 2.16120e+01 1.11101e+01 1088 2007 12 2.07111e+01 1.27618e+01 860 2008 1 2.06795e+01 1.42906e+01 640 2008 2 1.63718e+01 7.29440e+00 679 2008 3 3.96546e+00 3.27106e+00 513 2008 4 2.44155e+01 2.64184e+01 498 2008 5 8.26742e+00 1.03935e+01 450 2008 6 2.67055e+01 1.53897e+01 422 2008 7 2.06478e+01 1.13529e+01 445 2008 8 1.77421e+01 8.81661e+00 240 2008 9 2.10871e+01 1.41348e+01 362 2008 10 1.08942e+01 7.87713e+00 832 2008 11 2.19847e+01 1.11225e+01 1024 2008 12 6.08952e+00 6.04290e+00 945 2009 1 9.48598e+00 5.68753e+00 611 2009 2 1.31278e+01 7.21806e+00 981 2009 3 2.16000e+01 1.07344e+01 960 2009 4 1.30852e+01 1.29004e+01 379 2009 5 1.31010e+01 1.34942e+01 157 2009 6 3.21919e+01 1.64562e+01 213 2009 7 2.33460e+01 2.15558e+01 115 2009 8 2.00394e+01 1.73848e+01 557 2009 9 2.34411e+01 1.39826e+01 678 2009 10 1.55014e+01 1.02731e+01 922 2009 11 2.16558e+01 1.05952e+01 774 2009 12 1.62488e+01 1.22094e+01 192 2010 1 8.93291e+00 7.45196e+00 883 2010 2 3.98983e+00 2.84296e+00 647 2010 3 1.80322e+00 1.72817e+00 819 2010 4 7.81944e-01 5.40029e-01 246 2010 5 2.34278e+01 2.08542e+01 493 2010 6 1.94014e+01 1.10144e+01 576 2010 7 2.16482e+01 1.24598e+01 291 2010 8 1.16499e+01 8.27055e+00 208 2010 9 1.47173e+01 1.12908e+01 567 2010 10 2.01236e+01 8.29944e+00 1536 2010 11 1.91282e+01 9.24322e+00 1280 2010 12 2.05141e+01 1.28199e+01 1062 2011 1 2.06489e+01 1.29785e+01 654 2011 2 3.19621e+01 6.05833e+00 768 2011 3 2.73506e+01 1.11612e+01 814 2011 4 1.89608e+01 9.73411e+00 904 2011 5 2.61806e+01 1.06946e+01 817 2011 6 2.17578e+01 1.40878e+01 250 2011 7 2.74353e+01 4.75957e+00 512 2011 8 3.32652e+01 8.54262e+00 330 2011 9 2.82674e+01 7.55437e+00 640 2011 10 2.45175e+01 1.22816e+01 954 2011 11 2.50168e+01 1.11985e+01 1030 2011 12 2.79808e+01 9.91367e+00 880 2012 1 2.94436e+01 1.49174e+01 960 2012 2 3.16436e+01 1.25723e+01 252 2012 3 3.18323e+01 1.75790e+01 832 2012 4 2.67001e+01 1.02595e+01 822 2012 5 2.67751e+01 9.89911e+00 384 2012 6 2.28467e+01 5.21085e+00 128 2012 7 7.21536e+01 2.58730e+00 64 2012 8 5.83070e+00 7.66261e+00 356 2012 9 7.09864e+00 8.27853e+00 161 2012 10 2.91681e+00 2.11954e+00 446 2012 11 1.65347e+01 7.11699e+00 780 2012 12 8.22021e+00 6.43724e+00 682 2013 1 1.80805e+01 1.05297e+01 704 2013 2 1.67956e+01 5.87468e+00 448 2013 3 1.65913e+01 1.09247e+01 654 2013 4 1.48867e+00 5.27909e+00 296 2013 5 1.86756e+01 1.13196e+01 211 2013 6 2.03817e+01 2.04879e+01 276 2013 7 1.29264e+00 2.62894e+00 64 2013 8 1.44932e+00 6.37501e+00 129 2013 9 8.16504e+00 1.09234e+01 129 2013 10 1.33807e+01 1.30816e+01 768 2013 11 6.20472e+00 7.62068e+00 375 2013 12 1.21104e+01 6.04841e+00 741 2014 1 7.85421e+00 7.48377e+00 512 2014 2 1.03892e+01 1.63486e+01 763 2014 3 9.46806e+00 1.37467e+01 447 2014 4 1.52676e-01 1.19376e-01 123 2014 5 8.73281e-01 7.84744e-01 60 2014 6 1.34834e+01 1.40429e+01 131 2014 7 1.14602e+01 7.14930e+00 406 2014 8 1.54783e+01 7.90641e+00 384 2014 9 3.17069e+01 2.58738e+01 220 2014 10 7.41766e+00 8.00278e+00 894 2014 11 1.48116e+01 9.01127e+00 894 2014 12 1.92587e+01 1.39314e+01 626 2015 1 6.86507e+00 8.20944e+00 687 2015 2 9.57938e+00 1.10510e+01 638 2015 3 4.44257e+00 2.74442e+00 256 2015 4 2.45784e+00 2.23590e+00 128 2015 5 2.08393e+01 1.39084e+01 532 2015 6 2.56565e+01 6.88197e+00 339 2015 7 1.35337e+01 8.23753e+00 163 2015 8 8.12654e+00 1.08448e+01 305 2015 9 7.02025e+00 6.35064e+00 212 2015 10 1.30716e+01 8.07663e+00 768 2015 11 1.39321e+01 1.05196e+01 898 2015 12 1.51417e+01 9.00742e+00 592 2016 1 1.07562e+01 8.81715e+00 568 2016 2 6.06211e+00 8.50429e+00 956 2016 3 5.92012e+00 4.66312e+00 640 2016 4 8.94514e+00 1.25391e+01 330 2016 5 1.39600e+01 9.99170e+00 743 2016 6 2.36206e+01 8.19208e+00 574 2016 7 1.76014e+01 5.84118e+00 763 2016 8 2.80825e+01 9.93657e+00 540 2016 9 9.47383e+00 1.07480e+01 616 2016 10 1.46039e+01 8.48312e+00 872 2016 11 1.97185e+01 8.40539e+00 896 2016 12 2.10587e+01 9.61561e+00 840 2017 1 1.72091e+01 8.62974e+00 620 2017 2 4.24053e+00 5.54612e+00 901 2017 3 1.67461e+01 1.29295e+01 917 2017 4 2.46916e+01 7.93621e+00 764 2017 5 2.58562e+01 6.30433e+00 448 2017 6 2.95725e+01 1.31192e+01 210 2017 7 2.06759e+01 8.91200e+00 128 2017 8 1.39179e+01 1.48488e+01 594 2017 9 1.00442e+01 7.74289e+00 384 2017 10 4.39720e+00 5.75966e+00 231 2017 11 1.20627e+01 1.25260e+01 1170 2017 12 1.64228e+01 1.06475e+01 576 2018 1 1.51842e+01 5.92790e+00 690 2018 2 2.28033e+01 1.27607e+01 608 2018 3 2.07476e+01 1.10998e+01 906 2018 4 1.73068e+01 1.27737e+01 540 2018 5 2.91981e+01 8.90077e+00 338 2018 6 1.98299e+01 7.74430e+00 256 2018 7 3.89017e+01 1.28978e+01 32 2018 8 2.53678e+01 2.15432e+01 311 2018 9 2.71441e+01 2.31896e+01 817 2018 10 1.23935e+01 1.07130e+01 1112 2018 11 5.21841e+00 5.12730e+00 356 2018 12 1.09279e+01 9.73555e+00 428 2019 1 3.24390e+00 6.43090e+00 331 2019 2 4.08050e+00 6.17600e+00 196 2019 3 6.43061e+00 9.03522e+00 710 2019 4 8.92542e+00 6.31660e+00 341 2019 5 2.12677e+01 1.18860e+01 792 2019 6 2.28206e+01 8.40118e+00 144 2019 7 3.41824e+01 1.63106e+01 256 2019 8 1.92411e+01 1.75959e+01 496 2019 9 1.50369e+01 8.21301e+00 720 2019 10 1.46421e+01 8.50920e+00 576 2019 11 1.82004e+01 7.59763e+00 768 2019 12 9.08731e+00 7.99260e+00 403 2020 1 1.50467e+01 7.53299e+00 753 2020 2 1.13766e+01 7.15504e+00 635 2020 3 8.70503e+00 9.23890e+00 471 2020 4 4.98066e+00 6.37334e+00 421 2020 5 1.05893e+01 8.65093e+00 396 2020 6 1.27460e+01 7.13374e+00 312 2020 7 2.11391e+01 2.04210e+01 319 2020 8 5.16022e+00 6.37866e+00 189 2020 9 1.72443e+01 2.38484e+01 288 2020 10 5.11189e+00 4.34398e+00 433 2020 11 3.94493e+00 3.27440e+00 725 2020 12 7.61630e+00 6.38560e+00 771 2021 1 7.07103e+00 7.41107e+00 342 2021 2 4.09426e+00 6.25519e+00 466 2021 3 2.58666e+00 4.39835e+00 7 2021 4 9.40284e-01 1.63546e+00 177 2021 5 6.50745e+00 4.40749e+00 519 2021 6 3.62051e+01 1.71449e+01 192 2021 7 2.17086e+01 2.45628e+01 255 2021 8 7.35807e+00 2.27229e+01 57 2021 9 1.35245e+01 1.26965e+01 128 2021 10 3.42105e+00 5.17851e+00 222 2021 11 6.70175e+00 9.70139e+00 858 2021 12 8.82323e+00 1.10978e+01 811 2022 1 4.29973e+00 3.20524e+00 823 2022 2 1.27760e+01 1.03784e+01 1024 2022 3 1.12809e+01 6.14816e+00 841 2022 4 nan nan 0 2022 5 1.19709e+01 1.16007e+01 352 2022 6 2.16014e+01 1.36729e+01 445 2022 7 2.62295e+01 1.35355e+01 437 2022 8 2.35043e+01 1.80224e+01 383 2022 9 9.87809e+00 1.58281e+00 72 2022 10 1.75844e+01 1.17074e+01 1082 2022 11 1.32308e+01 8.13587e+00 363 2022 12 1.66975e+01 1.06487e+01 733 2023 1 2.48245e+01 1.06066e+01 955 2023 2 1.72750e+01 7.37319e+00 511 2023 3 9.33765e+00 7.04931e+00 704 2023 4 2.80079e+01 1.98283e+01 384 2023 5 2.47061e+01 1.32579e+01 331 2023 6 1.95080e+01 7.67630e+00 320 2023 7 2.10657e+01 1.04343e+01 514 2023 8 1.70258e+01 2.30081e+01 328 2023 9 1.48876e+01 2.06376e+01 385 2023 10 7.82258e+00 7.55291e+00 505 2023 11 1.28961e+01 9.19729e+00 704 2023 12 1.04280e+01 7.63875e+00 138 2024 1 4.83692e-01 1.00792e+00 256 2024 2 4.82162e+00 8.00455e+00 615 2024 3 9.30308e+00 1.25020e+01 484 2024 4 nan nan 0