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 4.03123e+01 9.75650e+00 215 2002 8 3.74939e+01 1.27527e+01 390 2002 9 3.84782e+01 1.30620e+01 251 2002 10 3.16828e+01 8.77266e+00 539 2002 11 2.40561e+01 9.74139e+00 750 2002 12 2.53815e+01 1.07959e+01 524 2003 1 1.51601e+01 1.21417e+01 765 2003 2 2.60353e+01 1.58212e+01 494 2003 3 nan nan 0 2003 4 1.58092e+00 6.18473e+00 79 2003 5 2.22722e-01 4.80144e-01 59 2003 6 1.39270e+01 4.34050e+00 66 2003 7 nan nan 0 2003 8 2.69332e+01 3.43547e+01 192 2003 9 8.20821e+00 1.24285e+01 143 2003 10 2.11848e+01 1.45686e+01 629 2003 11 1.75906e+01 1.67263e+01 745 2003 12 2.58083e+01 1.17982e+01 776 2004 1 2.46532e+01 1.18823e+01 802 2004 2 2.04749e+01 9.12083e+00 381 2004 3 1.36856e+01 1.21057e+01 197 2004 4 2.64076e+01 1.09661e+01 334 2004 5 3.42372e+01 1.20429e+01 447 2004 6 3.47192e+01 1.35380e+01 442 2004 7 3.09656e+01 1.49900e+01 163 2004 8 2.88437e+01 6.03113e+00 348 2004 9 3.61503e+01 3.02749e+01 89 2004 10 5.64108e-03 4.98424e-03 9 2004 11 3.70692e-01 7.10864e-01 55 2004 12 5.50868e+00 3.45306e+00 166 2005 1 1.13457e+01 1.01754e+01 355 2005 2 1.01328e+01 5.50453e+00 216 2005 3 1.37274e+01 9.25850e+00 214 2005 4 2.90885e+00 2.23320e+00 65 2005 5 nan nan 0 2005 6 2.72826e+01 3.45032e+00 64 2005 7 1.34448e+01 9.78860e+00 60 2005 8 8.65276e-04 0.00000e+00 2 2005 9 1.75479e+01 1.12013e+01 241 2005 10 2.44142e+01 1.42445e+01 829 2005 11 2.19446e+01 1.16910e+01 814 2005 12 1.97557e+01 9.72744e+00 904 2006 1 5.99976e+00 5.17636e+00 394 2006 2 3.71797e+00 5.25752e+00 272 2006 3 4.90571e+00 4.37167e+00 392 2006 4 2.21618e+01 8.10458e+00 309 2006 5 3.04186e+01 1.38261e+01 338 2006 6 3.43527e+01 7.14193e+00 205 2006 7 1.76106e+01 6.51673e+00 139 2006 8 3.39478e+01 8.20291e+00 209 2006 9 3.26237e+01 9.59175e+00 767 2006 10 3.35807e+01 1.58099e+01 782 2006 11 3.35472e+01 1.33197e+01 698 2006 12 4.31274e+01 1.38677e+01 581 2007 1 4.47239e+01 1.26559e+01 362 2007 2 3.31277e+01 1.28739e+01 653 2007 3 3.21298e+01 1.52953e+01 885 2007 4 3.59348e+01 7.30060e+00 549 2007 5 3.87166e+01 8.87839e+00 158 2007 6 4.17396e+01 6.88289e+00 201 2007 7 3.14924e+01 9.38124e+00 247 2007 8 2.47864e+01 1.20342e+01 387 2007 9 3.54931e+01 9.86151e+00 349 2007 10 3.18961e+01 1.20653e+01 520 2007 11 2.86363e+01 1.58722e+01 947 2007 12 3.31568e+01 1.68015e+01 758 2008 1 3.20097e+01 1.64592e+01 698 2008 2 2.52384e+01 1.14012e+01 743 2008 3 9.01397e+00 1.03496e+01 249 2008 4 7.97040e+00 6.73824e+00 185 2008 5 1.20157e+01 7.78982e+00 273 2008 6 3.69881e+01 1.22101e+01 368 2008 7 3.81518e+01 1.06910e+01 316 2008 8 3.27794e+01 1.69038e+01 146 2008 9 2.25634e+01 1.25211e+01 191 2008 10 1.22606e+01 1.10716e+01 634 2008 11 2.61131e+01 1.37523e+01 918 2008 12 1.28103e+01 8.17302e+00 852 2009 1 1.78266e+01 7.35298e+00 550 2009 2 2.52076e+01 1.04171e+01 905 2009 3 2.90966e+01 1.25808e+01 843 2009 4 1.20086e+01 1.18582e+01 269 2009 5 4.51828e+00 4.25482e+00 52 2009 6 4.00696e+01 1.00303e+01 139 2009 7 8.26440e-01 0.00000e+00 2 2009 8 2.52464e+01 1.95982e+01 343 2009 9 1.88976e+01 1.19725e+01 445 2009 10 2.63049e+01 9.94575e+00 694 2009 11 3.47536e+01 1.08667e+01 711 2009 12 2.36244e+01 8.36813e+00 192 2010 1 1.81319e+01 1.30291e+01 821 2010 2 9.09791e+00 1.27196e+01 246 2010 3 4.67300e+00 4.09465e+00 414 2010 4 1.71396e+00 3.49984e+00 25 2010 5 3.02140e+01 2.26871e+01 361 2010 6 2.52487e+01 1.27445e+01 393 2010 7 1.72341e+01 1.88695e+01 209 2010 8 1.99839e+01 8.41561e+00 143 2010 9 2.20385e+01 1.19929e+01 448 2010 10 3.03370e+01 1.03636e+01 1442 2010 11 3.12047e+01 1.14569e+01 1120 2010 12 3.56441e+01 1.58288e+01 857 2011 1 3.51150e+01 1.75936e+01 681 2011 2 4.34270e+01 1.01451e+01 768 2011 3 3.29098e+01 1.15078e+01 832 2011 4 3.05390e+01 1.07623e+01 616 2011 5 3.92819e+01 1.50094e+01 614 2011 6 3.68739e+01 7.02795e+00 198 2011 7 4.21447e+01 6.36672e+00 390 2011 8 3.63852e+01 9.35662e+00 165 2011 9 4.07727e+01 8.00966e+00 672 2011 10 4.10746e+01 1.22358e+01 869 2011 11 4.15675e+01 1.32825e+01 1037 2011 12 4.53220e+01 1.15256e+01 853 2012 1 4.11402e+01 1.64373e+01 947 2012 2 4.01919e+01 1.24956e+01 179 2012 3 3.45069e+01 2.13406e+01 558 2012 4 3.41459e+01 1.22368e+01 679 2012 5 4.11621e+01 8.38680e+00 335 2012 6 2.29037e+01 1.15607e+01 88 2012 7 nan nan 0 2012 8 9.64892e-21 2.89468e-20 10 2012 9 2.12913e+00 3.37924e+00 36 2012 10 1.01380e+01 7.77461e+00 167 2012 11 2.47607e+01 1.26763e+01 623 2012 12 2.21830e+01 9.43843e+00 492 2013 1 3.58000e+01 1.53854e+01 552 2013 2 3.27768e+01 5.34134e+00 448 2013 3 1.78932e+01 1.51891e+01 397 2013 4 8.55077e+00 8.44250e+00 84 2013 5 3.15261e+01 7.11092e+00 122 2013 6 1.55839e+01 2.39980e+01 213 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 1.21520e-03 2.42957e-03 5 2013 10 1.71573e+01 1.66030e+01 564 2013 11 1.38582e+01 8.90615e+00 223 2013 12 2.58550e+01 8.05555e+00 561 2014 1 1.62938e+01 8.81269e+00 300 2014 2 7.50796e+00 7.97915e+00 346 2014 3 1.88683e+01 2.10614e+01 241 2014 4 6.15296e+01 4.35669e+00 5 2014 5 nan nan 0 2014 6 1.36281e+01 3.29355e+00 64 2014 7 1.20646e+01 8.00171e+00 186 2014 8 2.05211e+01 8.23081e+00 206 2014 9 3.13661e+01 1.16690e+01 174 2014 10 1.07473e+01 1.82441e+01 559 2014 11 2.39825e+01 1.18024e+01 880 2014 12 3.29203e+01 1.45929e+01 642 2015 1 8.68265e+00 5.82027e+00 492 2015 2 1.08148e+01 8.86270e+00 464 2015 3 2.53668e+01 2.95041e+01 193 2015 4 8.43188e-01 9.20012e-01 64 2015 5 2.51642e+01 1.58686e+01 422 2015 6 3.40151e+01 9.17210e+00 320 2015 7 3.10649e+01 1.59741e+01 8 2015 8 1.51898e+01 1.60086e+01 157 2015 9 2.08698e+00 2.79435e+00 43 2015 10 1.63808e+01 8.53757e+00 540 2015 11 2.15650e+01 9.63927e+00 594 2015 12 2.67141e+01 1.14170e+01 502 2016 1 1.53619e+01 9.48533e+00 434 2016 2 7.65834e+00 6.37747e+00 662 2016 3 7.00682e+00 4.94273e+00 402 2016 4 1.04092e+01 5.83880e+00 219 2016 5 1.76695e+01 1.18021e+01 469 2016 6 3.05593e+01 1.27768e+01 430 2016 7 2.48730e+01 1.17092e+01 613 2016 8 3.58185e+01 1.27418e+01 574 2016 9 4.63924e+00 8.29081e+00 281 2016 10 2.17651e+01 1.23597e+01 713 2016 11 3.30167e+01 9.95312e+00 801 2016 12 3.94246e+01 1.00560e+01 787 2017 1 2.66816e+01 1.00821e+01 576 2017 2 7.36029e+00 6.33882e+00 401 2017 3 2.47539e+01 1.94404e+01 707 2017 4 3.61542e+01 1.07688e+01 602 2017 5 3.15987e+01 1.08846e+01 398 2017 6 4.70433e+01 1.27141e+01 320 2017 7 nan nan 0 2017 8 1.90264e+01 1.39610e+01 244 2017 9 7.55848e+00 9.74292e+00 118 2017 10 1.09181e+01 6.79718e+00 84 2017 11 1.44699e+01 1.15793e+01 882 2017 12 2.75838e+01 1.64616e+01 571 2018 1 2.36195e+01 9.54127e+00 629 2018 2 2.14818e+01 1.31435e+01 633 2018 3 2.35920e+01 1.73478e+01 888 2018 4 2.24819e+01 1.28038e+01 377 2018 5 3.55037e+01 1.05277e+01 373 2018 6 1.48685e+01 1.35393e+01 128 2018 7 3.85777e+00 5.01990e+00 3 2018 8 3.36048e+00 4.63841e+00 119 2018 9 2.24795e+01 2.37095e+01 474 2018 10 1.27833e+01 8.21814e+00 822 2018 11 2.04842e+01 9.08549e+00 366 2018 12 1.33725e+01 8.80693e+00 239 2019 1 3.89886e+01 4.37423e+01 113 2019 2 4.90016e-01 7.44875e-01 116 2019 3 1.31560e+01 1.10954e+01 200 2019 4 1.27871e+01 9.21711e+00 233 2019 5 3.35103e+01 1.33953e+01 488 2019 6 4.68637e+01 7.57528e+00 99 2019 7 3.93518e+01 6.28408e+00 128 2019 8 2.70384e+00 3.53182e+00 149 2019 9 1.88434e+01 1.06590e+01 429 2019 10 2.55241e+01 9.79641e+00 486 2019 11 3.16410e+01 9.68367e+00 704 2019 12 1.84205e+01 1.00946e+01 240 2020 1 1.87225e+01 9.18979e+00 630 2020 2 1.61586e+01 6.80307e+00 524 2020 3 9.91402e+00 6.82055e+00 231 2020 4 1.14133e+01 1.12939e+01 174 2020 5 1.31071e+01 1.51251e+01 276 2020 6 0.00000e+00 0.00000e+00 1 2020 7 1.72783e+01 2.07771e+01 69 2020 8 2.63288e+00 9.86674e-01 18 2020 9 3.92262e+00 4.34983e+00 27 2020 10 8.70481e+00 7.02785e+00 272 2020 11 1.21626e+01 8.25992e+00 692 2020 12 2.08242e+01 7.73540e+00 485 2021 1 1.25863e+01 6.80913e+00 220 2021 2 5.42275e+00 6.68451e+00 249 2021 3 nan nan 0 2021 4 nan nan 0 2021 5 1.92245e+01 1.12683e+01 311 2021 6 4.01253e+01 2.14227e+01 171 2021 7 9.68195e+00 1.40616e+01 35 2021 8 2.86624e+01 0.00000e+00 2 2021 9 2.11353e+01 7.06525e+00 64 2021 10 7.87317e+00 6.18874e+00 91 2021 11 1.38967e+01 8.48342e+00 622 2021 12 1.31656e+01 1.20703e+01 575 2022 1 1.19771e+01 5.21041e+00 563 2022 2 1.60258e+01 9.97256e+00 810 2022 3 1.60236e+01 9.98053e+00 728 2022 4 nan nan 0 2022 5 1.34149e+01 1.22697e+01 270 2022 6 1.60405e+01 7.62201e+00 316 2022 7 4.72709e+01 1.42428e+01 265 2022 8 2.83170e+01 2.55600e+01 154 2022 9 2.14904e+01 3.78290e+00 64 2022 10 2.43827e+01 1.63856e+01 712 2022 11 2.17926e+01 6.51938e+00 409 2022 12 2.62193e+01 1.47396e+01 684 2023 1 3.53867e+01 1.08865e+01 756 2023 2 2.71115e+01 1.46849e+01 671 2023 3 7.66089e+00 6.59766e+00 492 2023 4 2.60578e+01 2.67296e+01 362 2023 5 3.02751e+01 1.50230e+01 320 2023 6 2.05700e+01 1.05000e+01 301 2023 7 8.97043e+00 1.10166e+01 129 2023 8 9.81681e+00 7.15844e+00 117 2023 9 3.70319e+01 3.52071e+01 192 2023 10 1.38021e+01 1.26847e+01 440 2023 11 1.65679e+01 1.23195e+01 544 2023 12 1.01930e+01 8.58120e+00 232 2024 1 2.83817e-02 3.25218e-02 31 2024 2 5.11259e+00 8.88244e+00 309 2024 3 1.16353e+01 7.13767e+00 197 2024 4 nan nan 0