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 2.43300e+01 9.23261e-01 30 2002 8 1.62308e+01 2.50184e+00 284 2002 9 1.57348e+01 2.75866e+00 170 2002 10 1.49458e+01 4.82983e+00 311 2002 11 1.77988e+01 3.98616e+00 938 2002 12 1.84593e+01 6.23823e+00 740 2003 1 1.84289e+01 6.45156e+00 922 2003 2 2.50574e+01 4.40601e+00 502 2003 3 2.70490e+01 4.13970e+00 539 2003 4 2.06882e+01 4.33644e+00 61 2003 5 2.87326e+01 5.07304e+00 218 2003 6 2.24064e+01 2.51534e+00 64 2003 7 2.29500e+01 1.09175e+00 64 2003 8 2.74223e+01 3.13529e+00 192 2003 9 2.03234e+01 4.78232e+00 175 2003 10 2.20550e+01 4.74504e+00 544 2003 11 9.28513e+00 4.20728e+00 338 2003 12 1.47062e+01 7.15448e+00 476 2004 1 2.16141e+01 4.44081e+00 582 2004 2 2.13476e+01 9.99976e+00 475 2004 3 2.03383e+01 6.91586e+00 486 2004 4 2.56908e+01 4.75792e+00 421 2004 5 2.69418e+01 3.88914e+00 123 2004 6 2.95800e+01 6.89756e+00 320 2004 7 2.35982e+01 4.81741e+00 240 2004 8 2.77001e+01 2.67721e+00 130 2004 9 1.28139e+01 6.05883e+00 178 2004 10 1.39951e+01 4.63493e+00 217 2004 11 2.10560e+01 3.40698e+00 417 2004 12 1.92340e+01 3.59810e+00 658 2005 1 1.30226e+01 7.48051e+00 350 2005 2 1.01039e+01 1.11139e+01 415 2005 3 2.72990e+01 6.36873e+00 706 2005 4 2.52597e+01 4.30052e+00 345 2005 5 nan nan 0 2005 6 2.79532e+01 1.69749e+00 64 2005 7 1.74476e+01 1.83406e+00 130 2005 8 1.90461e+01 4.30032e+00 314 2005 9 2.08821e+01 3.36532e+00 307 2005 10 2.09185e+01 2.03403e+00 105 2005 11 1.41284e+01 3.53985e+00 637 2005 12 1.71068e+01 6.35674e+00 611 2006 1 2.02329e+01 7.67093e+00 515 2006 2 2.39690e+01 5.31103e+00 776 2006 3 1.94696e+01 6.21735e+00 694 2006 4 1.94533e+01 4.50233e+00 128 2006 5 2.29241e+01 5.35160e+00 192 2006 6 2.89252e+01 6.59831e+00 182 2006 7 1.83819e+01 2.37935e+00 334 2006 8 2.50184e+01 4.54824e+00 192 2006 9 1.87511e+01 3.95921e+00 553 2006 10 1.67638e+01 4.69362e+00 379 2006 11 2.12632e+01 3.82933e+00 633 2006 12 1.74651e+01 3.43266e+00 712 2007 1 1.90480e+01 5.72894e+00 679 2007 2 2.22495e+01 6.26594e+00 951 2007 3 2.72020e+01 4.78644e+00 408 2007 4 2.27163e+01 6.13977e+00 292 2007 5 2.24586e+01 5.17220e+00 220 2007 6 1.53144e+01 5.06777e-01 5 2007 7 2.03192e+01 5.51960e+00 235 2007 8 1.34899e+01 1.34922e+01 88 2007 9 1.89478e+01 2.87403e+00 179 2007 10 2.24935e+01 4.96169e+00 335 2007 11 1.32405e+01 8.07781e+00 472 2007 12 1.94761e+01 4.31495e+00 568 2008 1 1.59577e+01 5.33347e+00 655 2008 2 2.26001e+01 5.01622e+00 682 2008 3 2.79198e+01 4.06857e+00 317 2008 4 2.58855e+01 7.59860e+00 448 2008 5 2.71429e+01 3.86348e+00 432 2008 6 2.40153e+01 3.11970e+00 139 2008 7 2.77763e+01 4.79590e+00 339 2008 8 2.44054e+01 5.42017e+00 211 2008 9 1.96402e+01 6.38412e+00 393 2008 10 1.88071e+01 5.09760e+00 378 2008 11 2.06252e+01 4.04946e+00 867 2008 12 1.74028e+01 6.67945e+00 423 2009 1 2.33422e+01 5.06875e+00 1072 2009 2 2.04896e+01 6.09885e+00 372 2009 3 1.45886e+01 7.73568e+00 303 2009 4 1.75899e+01 1.14170e+01 571 2009 5 1.47752e+01 2.10416e+00 195 2009 6 1.68189e+01 4.85395e+00 81 2009 7 2.36960e+01 2.72741e+00 192 2009 8 2.38296e+01 4.20568e+00 192 2009 9 2.21895e+01 3.98711e+00 451 2009 10 2.17142e+01 4.00729e+00 591 2009 11 1.76968e+01 5.67585e+00 645 2009 12 1.71940e+01 3.94948e+00 675 2010 1 8.49933e+00 4.73574e+00 838 2010 2 1.74008e+01 4.54515e+00 489 2010 3 2.77322e+01 4.25237e+00 335 2010 4 2.29960e+01 4.65469e+00 131 2010 5 1.97211e+01 4.59144e+00 192 2010 6 2.04784e+01 4.12503e+00 116 2010 7 1.21166e+01 1.35971e+00 48 2010 8 1.80897e+01 3.41945e+00 218 2010 9 2.08072e+01 5.22784e+00 309 2010 10 2.24510e+01 3.50295e+00 512 2010 11 1.35284e+01 2.29531e+00 373 2010 12 1.10756e+01 3.85802e+00 549 2011 1 2.21835e+01 4.25574e+00 674 2011 2 2.17918e+01 7.57006e+00 644 2011 3 2.40372e+01 3.55776e+00 657 2011 4 2.90529e+01 5.87007e+00 345 2011 5 2.31013e+01 3.86647e+00 128 2011 6 1.88527e+01 1.52793e+00 64 2011 7 nan nan 0 2011 8 2.32440e+01 7.19967e+00 190 2011 9 2.02170e+01 5.06487e+00 304 2011 10 2.25344e+01 4.27718e+00 436 2011 11 1.43725e+01 5.48728e+00 340 2011 12 1.62561e+01 5.03215e+00 470 2012 1 2.18114e+01 3.87307e+00 635 2012 2 2.27645e+01 5.69293e+00 588 2012 3 2.61243e+01 6.75855e+00 200 2012 4 2.46975e+01 3.95235e+00 134 2012 5 3.12841e+01 8.58862e+00 145 2012 6 3.27064e+01 5.28335e+00 245 2012 7 3.13799e+01 9.30527e+00 128 2012 8 2.73199e+01 7.69200e+00 192 2012 9 1.71865e+01 3.27546e+00 356 2012 10 2.11048e+01 6.06569e+00 399 2012 11 1.70014e+01 2.43533e+00 523 2012 12 1.45098e+01 7.75944e+00 405 2013 1 1.27321e+01 6.90225e+00 474 2013 2 1.57124e+01 6.52121e+00 839 2013 3 1.48246e+01 9.91632e+00 529 2013 4 2.82947e+01 5.68864e+00 399 2013 5 2.89576e+01 8.35219e+00 137 2013 6 nan nan 0 2013 7 2.32211e+01 2.57242e+00 101 2013 8 2.37722e+01 2.88667e+00 192 2013 9 1.89114e+01 3.96730e+00 179 2013 10 1.65752e+01 2.87087e+00 180 2013 11 1.26263e+01 3.51802e+00 648 2013 12 1.52254e+01 5.18020e+00 532 2014 1 1.90995e+01 4.16062e+00 805 2014 2 2.48278e+01 3.63723e+00 818 2014 3 2.39198e+01 6.85340e+00 737 2014 4 2.43267e+01 5.67233e+00 409 2014 5 2.82866e+01 4.02083e+00 192 2014 6 2.72370e+01 6.10269e+00 216 2014 7 2.36560e+01 3.34213e+00 99 2014 8 2.72703e+01 5.22396e+00 187 2014 9 2.18394e+01 5.05414e+00 369 2014 10 1.50680e+01 3.51064e+00 502 2014 11 1.77388e+01 6.22813e+00 571 2014 12 1.78564e+01 6.31386e+00 745 2015 1 2.34648e+01 3.88408e+00 632 2015 2 1.48733e+01 7.01454e+00 562 2015 3 2.66991e+01 6.03652e+00 452 2015 4 2.82399e+01 7.70914e+00 531 2015 5 2.35671e+01 4.40923e+00 192 2015 6 2.58805e+01 6.95875e+00 192 2015 7 2.22211e+01 8.45461e-01 64 2015 8 2.21637e+01 2.77463e+00 373 2015 9 2.23428e+01 5.32478e+00 429 2015 10 1.67076e+01 4.46161e+00 434 2015 11 1.90637e+01 4.91067e+00 273 2015 12 2.13764e+01 3.57758e+00 768 2016 1 1.65552e+01 6.69959e+00 678 2016 2 2.17696e+01 5.62079e+00 597 2016 3 2.30849e+01 7.58300e+00 341 2016 4 2.86943e+01 4.41576e+00 448 2016 5 2.56858e+01 3.69167e+00 70 2016 6 3.22569e+01 4.30035e+00 256 2016 7 2.83227e+01 2.25079e+00 123 2016 8 2.15873e+01 8.33136e+00 172 2016 9 2.36164e+01 7.81675e+00 403 2016 10 9.18016e+00 2.73426e+00 344 2016 11 1.06107e+01 4.21361e+00 243 2016 12 1.74883e+01 4.08568e+00 438 2017 1 1.45180e+01 7.94530e+00 661 2017 2 1.91701e+01 4.22187e+00 585 2017 3 2.04073e+01 7.41589e+00 406 2017 4 2.21980e+01 6.18079e+00 359 2017 5 2.97501e+01 5.47472e+00 270 2017 6 2.58056e+01 5.21736e+00 387 2017 7 2.21064e+01 3.75006e+00 267 2017 8 1.29738e+01 9.46358e-02 9 2017 9 1.03636e+01 4.78724e+00 249 2017 10 1.50767e+01 5.45601e+00 409 2017 11 1.43870e+01 4.98580e+00 532 2017 12 1.66880e+01 6.86713e+00 371 2018 1 1.77141e+01 5.89791e+00 361 2018 2 2.36499e+01 5.54334e+00 349 2018 3 1.74451e+01 1.00895e+01 618 2018 4 2.82209e+01 5.33869e+00 394 2018 5 2.62386e+01 4.25980e+00 495 2018 6 2.56227e+01 3.00411e+00 221 2018 7 2.36057e+01 2.95805e+00 64 2018 8 2.75536e+01 4.95998e+00 230 2018 9 1.86899e+01 4.84929e+00 256 2018 10 1.50591e+01 5.19251e+00 446 2018 11 1.52801e+01 6.82235e+00 478 2018 12 1.98153e+01 5.85295e+00 702 2019 1 2.12980e+01 6.53900e+00 646 2019 2 2.29746e+01 2.94331e+00 321 2019 3 2.88943e+01 5.17327e+00 613 2019 4 2.79033e+01 4.87985e+00 446 2019 5 2.60621e+01 4.93100e+00 137 2019 6 2.69274e+01 5.74497e+00 256 2019 7 2.73595e+01 2.34623e+00 230 2019 8 2.17152e+01 4.11765e+00 256 2019 9 1.83353e+01 6.24826e+00 213 2019 10 1.96719e+01 4.26122e+00 384 2019 11 1.27512e+01 5.10617e+00 820 2019 12 1.21263e+01 6.35912e+00 394 2020 1 1.39050e+01 9.08131e+00 481 2020 2 2.17981e+01 4.77648e+00 822 2020 3 2.20340e+01 6.42427e+00 320 2020 4 2.99481e+01 7.30427e+00 671 2020 5 2.92834e+01 3.78529e+00 192 2020 6 2.76612e+01 4.55081e+00 393 2020 7 2.67752e+01 3.16928e+00 256 2020 8 2.34389e+01 6.63725e+00 198 2020 9 2.10568e+01 5.26885e+00 303 2020 10 2.00232e+01 5.36791e+00 435 2020 11 2.03552e+01 5.22856e+00 667 2020 12 1.84207e+01 3.26734e+00 656 2021 1 1.81244e+01 5.22599e+00 771 2021 2 1.95653e+01 9.08718e+00 529 2021 3 2.75895e+01 5.34965e+00 621 2021 4 2.85256e+01 6.78638e+00 404 2021 5 2.76808e+01 5.14263e+00 189 2021 6 1.25700e+01 2.69576e+00 157 2021 7 2.29414e+01 5.46499e+00 142 2021 8 2.38647e+01 3.09509e+00 258 2021 9 1.87817e+01 7.73345e+00 486 2021 10 2.05406e+01 4.24803e+00 434 2021 11 1.45146e+01 4.37363e+00 707 2021 12 1.76377e+01 3.63478e+00 603 2022 1 2.05608e+01 5.19041e+00 1008 2022 2 2.40288e+01 5.53012e+00 346 2022 3 2.92713e+01 5.09820e+00 190 2022 4 2.62178e+01 4.89966e+00 128 2022 5 2.66916e+01 9.59100e+00 152 2022 6 2.90986e+01 4.73498e+00 423 2022 7 2.88473e+01 7.30756e+00 327 2022 8 2.34237e+01 5.75932e+00 256 2022 9 1.37226e+01 8.69453e+00 244 2022 10 2.13316e+01 5.72476e+00 369 2022 11 1.69305e+01 5.67346e+00 473 2022 12 1.01506e+01 7.43824e+00 807 2023 1 2.15065e+01 4.07089e+00 795 2023 2 2.05058e+01 5.37091e+00 331 2023 3 1.96380e+01 7.08216e+00 489 2023 4 2.66250e+01 5.11188e+00 571 2023 5 2.59523e+01 4.02557e+00 547 2023 6 2.73664e+01 4.21417e+00 306 2023 7 1.45554e+01 1.29319e+00 34 2023 8 2.50828e+01 9.17798e+00 322 2023 9 1.20206e+01 2.67666e+00 341 2023 10 1.94241e+01 4.75641e+00 363 2023 11 2.02698e+01 6.17497e+00 482 2023 12 1.68000e+01 6.39289e+00 764 2024 1 2.10819e+01 7.84099e+00 744 2024 2 1.53388e+01 8.69472e+00 705 2024 3 2.78421e+01 5.26616e+00 407 2024 4 2.16349e+01 1.07521e+01 18