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 2.00729e+00 9.23865e-01 272 2002 8 2.31980e+00 6.67050e-01 512 2002 9 2.95739e+00 1.76665e+00 324 2002 10 2.39138e+00 1.08790e+00 750 2002 11 2.76505e+00 1.27285e+00 745 2002 12 3.00665e+00 1.79385e+00 629 2003 1 3.70517e+00 2.07123e+00 917 2003 2 3.41994e+00 1.43822e+00 510 2003 3 2.32478e+01 6.71408e+00 14 2003 4 nan nan 0 2003 5 9.85431e+00 8.51112e+00 131 2003 6 5.77393e+00 3.65326e+00 256 2003 7 8.73084e+00 7.34537e+00 137 2003 8 6.40900e+00 6.18734e+00 203 2003 9 5.10348e+00 2.38687e+00 262 2003 10 5.41878e+00 3.11948e+00 839 2003 11 8.43975e+00 9.11199e+00 982 2003 12 2.57636e+00 1.10917e+00 788 2004 1 4.07789e+00 3.86306e+00 809 2004 2 4.07100e+00 3.02880e+00 384 2004 3 9.00228e+00 7.34627e+00 676 2004 4 2.08849e+00 7.81089e-01 380 2004 5 1.68632e+00 9.54503e-01 640 2004 6 2.49792e+00 1.17814e+00 556 2004 7 4.07317e+00 1.57766e+00 340 2004 8 4.24134e+00 2.41569e+00 346 2004 9 5.76912e+00 1.86117e+00 186 2004 10 1.60349e+01 4.41521e+00 64 2004 11 2.30569e+01 7.38107e+00 72 2004 12 1.45291e+01 7.60277e+00 394 2005 1 1.02403e+01 7.97243e+00 618 2005 2 8.38355e+00 5.68006e+00 502 2005 3 8.25599e+00 5.74961e+00 411 2005 4 1.43303e+01 7.33309e+00 304 2005 5 6.16314e+00 1.71858e+00 15 2005 6 6.60633e+00 3.25246e+00 258 2005 7 1.09373e+01 1.16779e+01 184 2005 8 1.86434e+01 4.21859e+00 64 2005 9 4.91239e+00 1.79233e+00 384 2005 10 5.29883e+00 4.83861e+00 896 2005 11 5.16088e+00 5.38475e+00 975 2005 12 3.58240e+00 1.60364e+00 1091 2006 1 1.37261e+01 1.23616e+01 532 2006 2 9.73678e+00 3.91526e+00 538 2006 3 1.07149e+01 8.66093e+00 975 2006 4 3.30934e+00 2.17950e+00 254 2006 5 1.77413e+00 1.01792e+00 384 2006 6 2.41898e+00 5.46581e-01 395 2006 7 3.05977e+00 1.07541e+00 256 2006 8 3.52203e+00 1.34374e+00 373 2006 9 2.54482e+00 1.28907e+00 816 2006 10 2.30453e+00 1.22639e+00 920 2006 11 2.03999e+00 1.04623e+00 840 2006 12 2.43639e+00 3.22386e+00 579 2007 1 9.66765e-01 3.12516e-01 375 2007 2 1.70848e+00 1.28781e+00 704 2007 3 1.65987e+00 1.11910e+00 981 2007 4 1.41072e+00 9.01793e-01 579 2007 5 1.33448e+00 1.06238e+00 185 2007 6 1.47725e+00 5.45030e-01 367 2007 7 2.36110e+00 1.07239e+00 485 2007 8 3.09923e+00 1.21929e+00 540 2007 9 3.02733e+00 1.27619e+00 460 2007 10 3.81535e+00 4.17284e+00 601 2007 11 3.21934e+00 3.06295e+00 1088 2007 12 3.76341e+00 3.30928e+00 860 2008 1 2.33607e+00 2.05012e+00 640 2008 2 2.58766e+00 1.06279e+00 679 2008 3 1.23905e+01 1.01773e+01 545 2008 4 5.15628e+00 2.54644e+00 498 2008 5 7.85180e+00 5.25510e+00 471 2008 6 3.60841e+00 2.11900e+00 422 2008 7 3.74439e+00 5.22026e+00 431 2008 8 5.23337e+00 3.39052e+00 240 2008 9 6.86133e+00 5.73169e+00 356 2008 10 6.98295e+00 4.84740e+00 832 2008 11 2.06641e+00 1.48395e+00 1024 2008 12 6.30914e+00 4.73659e+00 903 2009 1 4.17138e+00 1.89947e+00 611 2009 2 2.93060e+00 1.11452e+00 981 2009 3 2.15769e+00 1.27209e+00 960 2009 4 7.99675e+00 1.06542e+01 358 2009 5 7.61928e+00 4.20921e+00 157 2009 6 2.51127e+00 1.39324e+00 213 2009 7 1.06956e+01 1.31313e+01 89 2009 8 7.70141e+00 6.00792e+00 557 2009 9 5.67795e+00 5.81806e+00 669 2009 10 4.89086e+00 5.44810e+00 922 2009 11 1.92019e+00 1.13260e+00 774 2009 12 2.19261e+00 1.26797e+00 192 2010 1 4.14443e+00 2.57939e+00 883 2010 2 8.30046e+00 6.96294e+00 669 2010 3 9.98890e+00 6.22060e+00 819 2010 4 1.30537e+01 1.01427e+01 240 2010 5 3.74940e+00 1.34970e+00 493 2010 6 3.82232e+00 2.11136e+00 576 2010 7 3.97051e+00 1.98494e+00 291 2010 8 8.15220e+00 5.13891e+00 208 2010 9 5.64615e+00 2.30870e+00 567 2010 10 2.38852e+00 1.09251e+00 1536 2010 11 2.11506e+00 1.35790e+00 1280 2010 12 1.74159e+00 1.44037e+00 1062 2011 1 1.62702e+00 9.70285e-01 654 2011 2 9.95671e-01 5.58445e-01 768 2011 3 1.33986e+00 8.45827e-01 814 2011 4 1.37911e+00 1.01145e+00 958 2011 5 1.15571e+00 6.82362e-01 817 2011 6 1.09616e+00 4.42504e-01 250 2011 7 2.07384e+00 7.70311e-01 512 2011 8 1.97625e+00 1.32382e+00 330 2011 9 1.99631e+00 6.67192e-01 640 2011 10 1.86978e+00 1.10119e+00 954 2011 11 1.52220e+00 8.55228e-01 1030 2011 12 1.34991e+00 5.67854e-01 880 2012 1 1.32945e+00 9.18612e-01 960 2012 2 1.12390e+00 3.86175e-01 252 2012 3 1.79513e+00 2.08177e+00 832 2012 4 1.73371e+00 1.19502e+00 822 2012 5 2.29935e+00 8.50703e-01 384 2012 6 2.51571e+00 7.43829e-01 128 2012 7 8.91901e+00 1.21504e+01 40 2012 8 2.11791e+01 9.57148e+00 285 2012 9 1.29317e+01 7.98871e+00 140 2012 10 1.38877e+01 1.00680e+01 412 2012 11 3.45954e+00 1.44686e+00 780 2012 12 6.46713e+00 5.03992e+00 674 2013 1 2.68992e+00 1.60422e+00 704 2013 2 1.94191e+00 4.64093e-01 448 2013 3 3.10258e+00 2.50270e+00 654 2013 4 1.78791e+01 1.11095e+01 328 2013 5 4.49103e+00 1.84636e+00 211 2013 6 7.84668e+00 5.04679e+00 276 2013 7 1.72809e+01 8.60891e+00 50 2013 8 2.57281e+01 1.10631e+01 99 2013 9 1.83059e+01 1.05023e+01 118 2013 10 7.44958e+00 4.04740e+00 768 2013 11 1.04796e+01 8.76990e+00 364 2013 12 3.68699e+00 1.65516e+00 741 2014 1 5.34099e+00 2.34287e+00 512 2014 2 8.43312e+00 7.45499e+00 760 2014 3 1.19090e+01 8.71729e+00 467 2014 4 1.97167e+01 7.85281e+00 116 2014 5 2.42422e+01 1.07318e+01 57 2014 6 9.32288e+00 6.15971e+00 128 2014 7 1.06745e+01 7.47774e+00 398 2014 8 5.23966e+00 4.27635e+00 384 2014 9 1.07877e+01 1.09595e+01 207 2014 10 1.04864e+01 8.99747e+00 890 2014 11 2.66637e+00 1.79138e+00 894 2014 12 5.77612e+00 6.67561e+00 621 2015 1 8.62159e+00 9.45672e+00 662 2015 2 8.37627e+00 8.61317e+00 630 2015 3 1.30583e+01 5.40619e+00 256 2015 4 1.71176e+01 8.01897e+00 128 2015 5 4.08543e+00 1.80966e+00 532 2015 6 2.79109e+00 1.51279e+00 339 2015 7 7.14523e+00 3.18762e+00 163 2015 8 1.61315e+01 1.17061e+01 309 2015 9 1.52561e+01 9.10557e+00 204 2015 10 4.92589e+00 5.13111e+00 768 2015 11 5.74064e+00 3.74738e+00 898 2015 12 2.97238e+00 1.28123e+00 592 2016 1 3.59513e+00 2.07194e+00 568 2016 2 7.60791e+00 5.30341e+00 953 2016 3 6.31744e+00 3.57666e+00 640 2016 4 7.14364e+00 8.36302e+00 309 2016 5 3.89518e+00 1.40312e+00 763 2016 6 2.72194e+00 7.13156e-01 574 2016 7 3.63214e+00 1.88732e+00 763 2016 8 3.76980e+00 3.95120e+00 540 2016 9 1.28026e+01 1.00053e+01 592 2016 10 3.61606e+00 1.66045e+00 872 2016 11 2.61655e+00 1.27904e+00 896 2016 12 2.17405e+00 1.00752e+00 840 2017 1 2.59706e+00 8.97758e-01 620 2017 2 9.72063e+00 7.10493e+00 900 2017 3 3.14555e+00 2.44062e+00 956 2017 4 1.65798e+00 1.87006e+00 763 2017 5 1.79510e+00 5.16517e-01 448 2017 6 2.48776e+00 1.10755e+00 213 2017 7 4.99331e+00 1.70253e+00 128 2017 8 1.03484e+01 7.95385e+00 582 2017 9 8.16620e+00 5.94840e+00 372 2017 10 1.91020e+01 1.28916e+01 217 2017 11 6.81185e+00 5.06381e+00 1162 2017 12 3.33152e+00 1.78911e+00 576 2018 1 2.29700e+00 5.87114e-01 690 2018 2 2.62747e+00 1.56809e+00 609 2018 3 2.24225e+00 1.22885e+00 906 2018 4 2.89387e+00 2.21676e+00 540 2018 5 1.74460e+00 5.26430e-01 338 2018 6 3.09291e+00 9.68916e-01 256 2018 7 4.13323e-01 5.68710e-01 32 2018 8 6.96847e+00 6.35890e+00 310 2018 9 8.00365e+00 8.05075e+00 779 2018 10 5.33736e+00 3.91934e+00 1098 2018 11 5.10950e+00 2.98630e+00 356 2018 12 8.46571e+00 8.20005e+00 403 2019 1 1.40142e+01 9.15460e+00 329 2019 2 1.65982e+01 8.59686e+00 176 2019 3 1.13200e+01 8.96483e+00 700 2019 4 7.92109e+00 9.99049e+00 350 2019 5 2.26840e+00 9.10420e-01 792 2019 6 3.05066e+00 1.22036e+00 144 2019 7 4.24454e+00 3.90321e+00 256 2019 8 8.34787e+00 6.38282e+00 496 2019 9 3.79139e+00 2.80327e+00 720 2019 10 3.99996e+00 1.43289e+00 576 2019 11 2.63421e+00 9.62721e-01 768 2019 12 3.75234e+00 2.30904e+00 403 2020 1 2.69538e+00 1.01894e+00 753 2020 2 2.32769e+00 9.09394e-01 635 2020 3 7.31426e+00 8.84404e+00 467 2020 4 6.26952e+00 3.57170e+00 425 2020 5 4.70339e+00 4.48893e+00 428 2020 6 5.18241e+00 6.01193e+00 312 2020 7 5.53021e+00 7.21494e+00 316 2020 8 1.25974e+01 1.18894e+01 179 2020 9 9.17248e+00 1.06049e+01 255 2020 10 7.23407e+00 5.67168e+00 428 2020 11 5.94537e+00 4.47803e+00 781 2020 12 3.45321e+00 1.38566e+00 806 2021 1 5.87010e+00 5.66760e+00 377 2021 2 7.99425e+00 4.41919e+00 510 2021 3 1.96613e+01 9.84269e+00 44 2021 4 1.51257e+01 1.22720e+01 175 2021 5 5.36748e+00 6.22917e+00 510 2021 6 2.05336e+00 8.61305e-01 192 2021 7 4.83157e+00 4.29779e+00 255 2021 8 1.52029e+01 7.17854e+00 63 2021 9 1.15214e+01 1.09002e+01 123 2021 10 1.31366e+01 8.84136e+00 253 2021 11 4.78864e+00 3.41174e+00 855 2021 12 4.02353e+00 1.65673e+00 811 2022 1 4.76453e+00 2.47664e+00 823 2022 2 3.34910e+00 1.58828e+00 1024 2022 3 4.10865e+00 3.14913e+00 841 2022 4 nan nan 0 2022 5 6.29521e+00 3.75452e+00 352 2022 6 5.61341e+00 3.85211e+00 445 2022 7 4.08046e+00 3.41016e+00 443 2022 8 9.89476e+00 1.05847e+01 369 2022 9 6.51306e+00 1.21383e+01 70 2022 10 4.15643e+00 6.43777e+00 1042 2022 11 4.79691e+00 3.05935e+00 362 2022 12 4.10735e+00 3.20061e+00 733 2023 1 1.95412e+00 7.75533e-01 955 2023 2 3.33208e+00 1.49444e+00 511 2023 3 7.94989e+00 6.81602e+00 704 2023 4 5.99844e+00 3.36814e+00 384 2023 5 3.77840e+00 1.23637e+00 331 2023 6 3.74512e+00 1.38886e+00 320 2023 7 7.28009e+00 8.81441e+00 471 2023 8 9.68900e+00 1.17213e+01 276 2023 9 1.23981e+01 8.98713e+00 373 2023 10 9.85417e+00 9.99437e+00 445 2023 11 3.46695e+00 2.74202e+00 704 2023 12 4.33755e+00 4.41286e+00 132 2024 1 1.80005e+01 7.13607e+00 256 2024 2 1.35322e+01 1.12060e+01 470 2024 3 1.10879e+01 7.97006e+00 476 2024 4 nan nan 0