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 1.70276e+01 4.76002e+00 73 2002 8 1.75793e+01 4.13293e+00 267 2002 9 1.55799e+01 8.27939e-01 93 2002 10 8.94433e+00 3.25840e+00 374 2002 11 1.28261e+01 3.90868e+00 767 2002 12 1.54463e+01 4.34201e+00 652 2003 1 1.73465e+01 4.30535e+00 463 2003 2 1.49312e+01 4.49856e+00 461 2003 3 1.88565e+01 3.88314e+00 399 2003 4 1.54341e+01 3.70959e+00 155 2003 5 1.85958e+01 3.91276e+00 154 2003 6 1.12595e+01 1.20655e+00 54 2003 7 2.23559e+01 7.14244e-01 32 2003 8 1.59624e+01 4.76309e+00 263 2003 9 1.68925e+01 4.27818e+00 282 2003 10 1.74828e+01 3.76713e+00 416 2003 11 6.51154e+00 4.76044e+00 330 2003 12 7.01100e+00 3.48773e+00 534 2004 1 1.61973e+01 7.19599e+00 547 2004 2 1.53951e+01 6.85391e+00 830 2004 3 1.64586e+01 7.24101e+00 506 2004 4 2.12057e+01 4.62586e+00 493 2004 5 1.54224e+01 3.54988e+00 228 2004 6 1.51707e+01 5.09336e+00 135 2004 7 1.53685e+01 1.80811e+00 109 2004 8 1.90613e+01 3.33628e+00 255 2004 9 1.18755e+01 7.34638e+00 181 2004 10 1.06433e+01 3.19871e+00 297 2004 11 1.46442e+01 4.24366e+00 447 2004 12 1.81591e+01 5.30864e+00 781 2005 1 1.35525e+01 6.12153e+00 619 2005 2 2.18933e+01 2.71479e+00 422 2005 3 1.99415e+01 4.53305e+00 522 2005 4 2.52049e+01 5.69791e+00 311 2005 5 2.03336e+01 5.49689e+00 164 2005 6 nan nan 0 2005 7 1.28528e+01 3.62202e+00 69 2005 8 2.38811e+01 1.36713e+00 64 2005 9 2.26238e+01 5.52278e+00 109 2005 10 9.20308e+00 7.52208e+00 204 2005 11 1.02070e+01 6.26131e+00 451 2005 12 1.43067e+01 4.54954e+00 1006 2006 1 1.24239e+01 6.51226e+00 685 2006 2 1.58947e+01 4.24093e+00 807 2006 3 2.15000e+01 5.53156e+00 311 2006 4 2.08172e+01 5.13479e+00 237 2006 5 2.45192e+01 6.39841e+00 247 2006 6 2.04120e+01 7.24948e+00 53 2006 7 1.42710e+01 4.68165e+00 205 2006 8 7.61245e+00 3.56584e-01 8 2006 9 1.91759e+01 3.25975e+00 216 2006 10 1.66079e+01 4.58582e+00 165 2006 11 1.81733e+01 5.21645e+00 700 2006 12 1.41197e+01 3.52655e+00 728 2007 1 1.73406e+01 4.37507e+00 1078 2007 2 2.18872e+01 4.13645e+00 658 2007 3 2.07706e+01 3.48436e+00 391 2007 4 2.21673e+01 8.01772e+00 248 2007 5 2.11348e+01 3.77760e+00 106 2007 6 1.78612e+01 2.95134e+00 61 2007 7 1.88883e+01 2.08719e+00 174 2007 8 1.01121e+01 6.75849e+00 235 2007 9 1.46390e+01 1.50641e+00 67 2007 10 1.49310e+01 7.29326e+00 279 2007 11 1.54113e+01 7.85323e+00 438 2007 12 1.44970e+01 5.25061e+00 676 2008 1 1.42054e+01 4.84700e+00 840 2008 2 1.68022e+01 5.03575e+00 539 2008 3 2.05014e+01 4.06119e+00 501 2008 4 2.12477e+01 3.78779e+00 309 2008 5 2.13034e+01 5.44590e+00 421 2008 6 1.61277e+01 4.12964e+00 148 2008 7 1.86460e+01 2.08764e+00 233 2008 8 1.94082e+01 6.15396e+00 184 2008 9 1.66842e+01 1.35802e+01 200 2008 10 6.32008e+00 3.88259e+00 432 2008 11 9.83101e+00 5.19785e+00 612 2008 12 1.26898e+01 7.90043e+00 677 2009 1 9.65697e+00 6.65224e+00 960 2009 2 1.17684e+01 7.64654e+00 689 2009 3 1.81762e+01 4.13216e+00 462 2009 4 1.50336e+01 6.57379e+00 416 2009 5 9.71597e+00 3.50054e+00 136 2009 6 1.39835e+01 6.24309e+00 149 2009 7 1.43619e+01 3.05276e+00 202 2009 8 1.72457e+01 5.20028e+00 160 2009 9 1.60066e+01 4.55202e+00 179 2009 10 1.49034e+01 4.68595e+00 495 2009 11 1.64671e+01 4.20995e+00 658 2009 12 9.91364e+00 4.80105e+00 753 2010 1 1.23846e+01 6.03808e+00 681 2010 2 1.83480e+01 6.99521e+00 503 2010 3 2.19220e+01 5.24831e+00 337 2010 4 1.70802e+01 4.06206e+00 187 2010 5 1.49053e+01 2.63001e+00 94 2010 6 9.84451e+00 7.89621e+00 246 2010 7 8.90504e+00 1.07602e+01 55 2010 8 1.29596e+01 4.75763e+00 222 2010 9 1.42124e+01 4.25159e+00 156 2010 10 1.49328e+01 6.74705e+00 261 2010 11 5.55161e+00 3.93504e+00 374 2010 12 1.32545e+01 4.05822e+00 502 2011 1 1.14539e+01 4.26937e+00 580 2011 2 1.15050e+01 4.75481e+00 668 2011 3 2.12841e+01 4.67648e+00 462 2011 4 2.07150e+01 3.76728e+00 331 2011 5 1.20469e+01 6.66802e+00 116 2011 6 1.21729e+01 4.04727e+00 78 2011 7 1.39102e+01 2.63741e+00 116 2011 8 1.15931e+01 3.39259e+00 65 2011 9 1.28520e+01 6.17759e+00 276 2011 10 1.35847e+01 3.35653e+00 250 2011 11 1.68111e+01 5.67360e+00 529 2011 12 1.97131e+01 7.05071e+00 714 2012 1 1.39761e+01 5.61828e+00 828 2012 2 1.99052e+01 6.83910e+00 723 2012 3 1.77417e+01 5.74733e+00 270 2012 4 1.91164e+01 2.59633e+00 206 2012 5 1.96853e+01 3.85176e+00 186 2012 6 1.50463e+01 4.25256e+00 59 2012 7 1.63736e+01 2.22613e+00 173 2012 8 1.90151e+01 1.15731e+00 14 2012 9 1.75335e+01 5.37995e+00 354 2012 10 2.00895e+01 6.13924e+00 208 2012 11 1.99052e+01 6.80326e+00 613 2012 12 1.26690e+01 2.88782e+00 677 2013 1 1.33439e+01 5.83030e+00 735 2013 2 1.93065e+01 3.71078e+00 721 2013 3 2.34185e+01 3.60976e+00 433 2013 4 1.86523e+01 3.89630e+00 338 2013 5 1.61194e+01 4.53641e+00 218 2013 6 nan nan 0 2013 7 1.14727e+01 5.49033e+00 392 2013 8 1.68918e+01 3.81659e+00 166 2013 9 1.31036e+01 3.90814e+00 248 2013 10 1.44395e+01 3.57652e+00 242 2013 11 1.20779e+01 4.74189e+00 561 2013 12 7.25995e+00 4.46890e+00 549 2014 1 1.34863e+01 5.40857e+00 823 2014 2 1.59925e+01 4.74403e+00 818 2014 3 1.99621e+01 5.11324e+00 424 2014 4 2.02059e+01 2.28985e+00 204 2014 5 2.09333e+01 3.53285e+00 300 2014 6 1.71203e+01 3.70113e+00 145 2014 7 2.04310e+01 3.49179e+00 186 2014 8 2.47368e+01 4.59274e+00 67 2014 9 1.76485e+01 4.96058e+00 99 2014 10 2.33482e+01 4.55816e+00 632 2014 11 1.15433e+01 6.79574e+00 735 2014 12 1.73410e+01 3.98361e+00 928 2015 1 1.29626e+01 6.90520e+00 802 2015 2 1.58347e+01 3.46333e+00 602 2015 3 1.83659e+01 4.73268e+00 472 2015 4 2.31311e+01 3.46038e+00 417 2015 5 nan nan 0 2015 6 nan nan 0 2015 7 2.49147e+01 1.16374e+00 48 2015 8 1.80591e+01 4.04747e+00 350 2015 9 1.89434e+01 3.77701e+00 424 2015 10 1.85283e+01 4.91325e+00 517 2015 11 1.41051e+01 4.77303e+00 220 2015 12 1.30998e+01 3.67799e+00 742 2016 1 1.47147e+01 2.81500e+00 666 2016 2 1.52002e+01 4.89396e+00 525 2016 3 2.02250e+01 4.09477e+00 193 2016 4 2.33974e+01 4.30748e+00 206 2016 5 1.10146e+01 1.37521e+00 56 2016 6 1.82631e+01 2.56241e+00 190 2016 7 2.21315e+01 4.45683e+00 77 2016 8 2.05354e+01 3.69079e+00 248 2016 9 1.93470e+01 3.86933e+00 444 2016 10 1.44448e+01 5.01702e+00 289 2016 11 1.25059e+01 3.07084e+00 219 2016 12 6.31506e+00 3.69090e+00 747 2017 1 1.68716e+01 4.73899e+00 428 2017 2 1.87880e+01 4.73710e+00 661 2017 3 1.73347e+01 5.69440e+00 504 2017 4 2.27672e+01 4.57897e+00 418 2017 5 1.87394e+01 3.93511e+00 247 2017 6 1.62127e+01 4.78554e+00 236 2017 7 1.89756e+01 4.41473e+00 162 2017 8 7.45176e+00 1.67535e+00 123 2017 9 7.87600e+00 2.98814e+00 282 2017 10 7.58925e+00 1.07998e+01 221 2017 11 1.41514e+01 6.36802e+00 479 2017 12 7.63836e+00 3.75579e+00 968 2018 1 9.81727e+00 5.22930e+00 632 2018 2 8.77539e+00 4.14009e+00 520 2018 3 1.89473e+01 6.98114e+00 546 2018 4 1.40807e+01 3.56243e+00 232 2018 5 1.72533e+01 4.51528e+00 227 2018 6 1.15618e+01 2.41560e+00 262 2018 7 1.54162e+01 2.08839e+00 49 2018 8 2.33782e+01 5.73685e+00 298 2018 9 1.42537e+01 4.49717e+00 320 2018 10 1.44324e+01 4.59890e+00 376 2018 11 6.79399e+00 3.34717e+00 869 2018 12 1.00153e+01 3.45912e+00 661 2019 1 1.29050e+01 6.48285e+00 1069 2019 2 1.94901e+01 4.41310e+00 601 2019 3 1.99280e+01 4.61303e+00 613 2019 4 2.40395e+01 6.62897e+00 269 2019 5 2.01815e+01 7.09599e+00 43 2019 6 1.81784e+01 2.83943e+00 162 2019 7 1.64256e+01 3.78737e+00 173 2019 8 1.97219e+01 1.15010e+01 185 2019 9 1.33496e+01 9.34516e+00 137 2019 10 1.90224e+01 5.69498e+00 371 2019 11 1.06336e+01 3.87531e+00 734 2019 12 1.24614e+01 5.77476e+00 630 2020 1 1.48364e+01 8.15747e+00 778 2020 2 1.87856e+01 6.72499e+00 582 2020 3 2.31996e+01 4.69165e+00 327 2020 4 2.47003e+01 5.19943e+00 724 2020 5 2.21887e+01 3.42840e+00 210 2020 6 2.42263e+01 3.73101e+00 274 2020 7 2.28167e+01 4.80325e+00 293 2020 8 9.16946e+00 2.50329e+00 141 2020 9 2.05221e+01 4.98134e+00 257 2020 10 1.35778e+01 4.84050e+00 424 2020 11 6.70427e+00 8.72413e+00 503 2020 12 1.32499e+01 3.87847e+00 741 2021 1 1.75478e+01 7.00329e+00 776 2021 2 1.87814e+01 4.13372e+00 400 2021 3 2.48573e+01 4.53468e+00 559 2021 4 2.53708e+01 3.16714e+00 365 2021 5 1.91654e+01 6.45970e+00 252 2021 6 4.30678e+00 5.23537e-01 13 2021 7 4.26812e+00 6.74761e+00 181 2021 8 1.74748e+01 4.69041e+00 324 2021 9 2.25754e+01 5.24194e+00 316 2021 10 1.88190e+01 6.10131e+00 202 2021 11 6.10851e+00 3.56152e+00 682 2021 12 1.04764e+01 6.00278e+00 761 2022 1 1.99568e+01 4.54258e+00 910 2022 2 1.96026e+01 6.51635e+00 508 2022 3 2.21991e+01 5.32880e+00 322 2022 4 2.36564e+01 5.81349e+00 108 2022 5 1.93079e+01 7.79106e+00 276 2022 6 2.63939e+01 6.22944e+00 231 2022 7 2.55586e+01 5.74011e+00 176 2022 8 2.22268e+01 9.49728e+00 271 2022 9 2.94869e+00 2.39116e+00 56 2022 10 1.04847e+01 5.45591e+00 442 2022 11 3.61992e+00 4.11786e+00 828 2022 12 1.70405e+01 6.74474e+00 951 2023 1 1.24483e+01 5.92008e+00 1039 2023 2 2.03887e+01 7.31069e+00 693 2023 3 2.09653e+01 5.32755e+00 557 2023 4 2.27336e+01 4.09445e+00 500 2023 5 1.81338e+01 4.76453e+00 350 2023 6 1.97119e+01 5.91872e+00 165 2023 7 nan nan 0 2023 8 1.84964e+01 3.47087e+00 236 2023 9 1.94382e+01 6.35639e+00 403 2023 10 1.46544e+01 6.15507e+00 252 2023 11 1.20155e+01 8.43538e+00 732 2023 12 1.37510e+01 5.05623e+00 678 2024 1 1.37834e+01 4.44122e+00 865 2024 2 2.14402e+01 7.22016e+00 575 2024 3 2.71208e+01 4.64038e+00 450 2024 4 nan nan 0