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 2.32515e+01 8.57156e+00 51 2002 8 2.01346e+01 3.97541e+00 136 2002 9 2.52045e+01 3.50127e+00 157 2002 10 2.05810e+01 4.28847e+00 183 2002 11 2.57512e+01 6.87828e+00 487 2002 12 2.28342e+01 7.26679e+00 422 2003 1 2.28176e+01 6.98011e+00 580 2003 2 2.70590e+01 8.68433e+00 372 2003 3 2.71820e+01 4.48095e+00 200 2003 4 2.13894e+01 3.98587e+00 60 2003 5 3.55668e+01 7.85459e+00 143 2003 6 1.69082e+01 5.70296e+00 59 2003 7 2.53221e+01 3.65290e+00 37 2003 8 2.45246e+01 7.35219e+00 92 2003 9 2.42352e+01 7.66639e+00 79 2003 10 3.47207e+01 5.77658e+00 385 2003 11 1.55172e+01 1.33881e+01 95 2003 12 2.66105e+01 7.11586e+00 246 2004 1 3.03137e+01 7.19687e+00 428 2004 2 2.44986e+01 6.20882e+00 546 2004 3 3.38247e+01 8.17034e+00 326 2004 4 2.52419e+01 7.31549e+00 399 2004 5 3.57286e+01 1.87913e+00 37 2004 6 2.80742e+01 7.46659e+00 129 2004 7 1.82331e+01 4.09435e+00 177 2004 8 2.82459e+01 6.00653e+00 76 2004 9 1.85946e+01 7.10897e+00 142 2004 10 2.25162e+01 4.70893e+00 118 2004 11 3.16517e+01 4.69027e+00 173 2004 12 2.51161e+01 5.41721e+00 324 2005 1 2.63204e+01 8.03037e+00 170 2005 2 2.26037e+01 1.64489e+01 142 2005 3 3.01042e+01 4.78417e+00 493 2005 4 3.09481e+01 8.48557e+00 267 2005 5 3.07319e+01 6.62950e+00 135 2005 6 nan nan 0 2005 7 2.11007e+01 4.73979e+00 79 2005 8 2.45989e+01 2.75608e+00 115 2005 9 2.54068e+01 6.40700e+00 109 2005 10 2.63577e+01 3.56667e+00 148 2005 11 2.69352e+01 4.27820e+00 278 2005 12 2.12880e+01 8.11709e+00 391 2006 1 3.21976e+01 5.20367e+00 156 2006 2 2.92987e+01 8.82185e+00 498 2006 3 2.28055e+01 3.70597e+00 325 2006 4 2.58511e+01 5.50645e+00 201 2006 5 2.87810e+01 4.59973e+00 214 2006 6 3.82530e+01 2.19865e+00 59 2006 7 2.90523e+01 3.15472e+00 51 2006 8 2.71780e+01 4.04558e+00 97 2006 9 2.91571e+01 3.93300e+00 220 2006 10 2.67066e+01 6.96447e+00 219 2006 11 2.20032e+01 5.78978e+00 426 2006 12 2.01692e+01 7.11712e+00 377 2007 1 1.84157e+01 4.66034e+00 457 2007 2 2.54034e+01 6.91490e+00 676 2007 3 3.22809e+01 9.83329e+00 223 2007 4 2.84537e+01 6.78929e+00 201 2007 5 3.42154e+01 4.25267e+00 158 2007 6 2.95802e+01 2.40394e+00 68 2007 7 2.45324e+01 5.58860e+00 124 2007 8 2.46004e+01 3.66682e+00 64 2007 9 2.16105e+01 6.45306e+00 104 2007 10 2.22636e+01 7.77800e+00 125 2007 11 2.40138e+01 7.47162e+00 331 2007 12 2.61940e+01 9.04879e+00 234 2008 1 2.09348e+01 7.63745e+00 394 2008 2 2.48014e+01 6.92515e+00 537 2008 3 2.51825e+01 4.63254e+00 228 2008 4 3.27305e+01 5.10539e+00 186 2008 5 2.80775e+01 5.55769e+00 176 2008 6 2.39715e+01 7.56084e+00 59 2008 7 3.43698e+01 6.51692e+00 157 2008 8 3.07636e+01 6.22359e+00 130 2008 9 2.71374e+01 5.95097e+00 254 2008 10 3.13030e+01 9.52311e+00 329 2008 11 2.71354e+01 5.82281e+00 496 2008 12 2.54527e+01 6.63020e+00 330 2009 1 2.81465e+01 7.20870e+00 412 2009 2 2.64168e+01 7.71053e+00 346 2009 3 2.51577e+01 5.99600e+00 156 2009 4 2.05842e+01 9.81427e+00 312 2009 5 2.47627e+01 1.21602e+00 87 2009 6 2.94620e+01 5.48833e+00 101 2009 7 3.30355e+01 8.83693e+00 126 2009 8 3.08615e+01 7.91070e+00 113 2009 9 2.71490e+01 5.21569e+00 335 2009 10 2.53786e+01 8.09644e+00 368 2009 11 2.70223e+01 9.08212e+00 236 2009 12 2.72476e+01 8.01701e+00 381 2010 1 1.81820e+01 6.93529e+00 474 2010 2 2.61915e+01 4.73618e+00 365 2010 3 2.90947e+01 6.81743e+00 376 2010 4 2.93927e+01 8.17943e+00 183 2010 5 3.11351e+01 8.13779e+00 193 2010 6 2.62280e+01 2.49306e+00 65 2010 7 2.58344e+01 1.54243e+00 54 2010 8 2.05832e+01 5.90410e+00 152 2010 9 2.32831e+01 6.55185e+00 205 2010 10 2.88430e+01 8.32488e+00 255 2010 11 1.70309e+01 3.90663e+00 278 2010 12 1.88404e+01 7.05081e+00 362 2011 1 2.87236e+01 6.43784e+00 460 2011 2 2.21576e+01 7.07315e+00 435 2011 3 2.58162e+01 4.63705e+00 348 2011 4 3.07724e+01 1.11868e+01 334 2011 5 2.36971e+01 8.77849e+00 76 2011 6 2.69647e+01 2.31854e+00 49 2011 7 3.34643e+01 5.40538e+00 64 2011 8 2.76173e+01 1.14425e-01 8 2011 9 2.62053e+01 6.30266e+00 175 2011 10 2.93590e+01 5.12594e+00 185 2011 11 2.99453e+01 9.19866e+00 250 2011 12 2.26819e+01 6.22299e+00 197 2012 1 2.05884e+01 5.57588e+00 476 2012 2 3.22904e+01 7.28875e+00 365 2012 3 3.69236e+01 9.52363e+00 223 2012 4 2.53298e+01 3.74855e+00 175 2012 5 2.80794e+01 5.41329e+00 64 2012 6 2.93109e+01 5.10734e+00 108 2012 7 3.15584e+01 2.93835e+00 89 2012 8 2.06973e+01 5.20108e+00 69 2012 9 2.03507e+01 6.56221e+00 379 2012 10 1.94975e+01 7.56848e+00 272 2012 11 2.24645e+01 4.21147e+00 330 2012 12 2.57387e+01 8.77770e+00 397 2013 1 2.08742e+01 1.20093e+01 316 2013 2 2.16849e+01 5.58684e+00 492 2013 3 2.10824e+01 5.45662e+00 333 2013 4 2.88660e+01 7.58573e+00 282 2013 5 3.04327e+01 5.83709e+00 137 2013 6 nan nan 0 2013 7 3.07496e+01 5.69946e+00 144 2013 8 2.76745e+01 4.71509e+00 145 2013 9 2.54103e+01 3.56995e+00 259 2013 10 2.52683e+01 6.97971e+00 142 2013 11 2.34475e+01 4.83150e+00 270 2013 12 2.58727e+01 6.70575e+00 385 2014 1 2.03100e+01 8.77587e+00 523 2014 2 2.35683e+01 8.24208e+00 416 2014 3 2.42251e+01 5.72730e+00 479 2014 4 3.11137e+01 6.45939e+00 269 2014 5 3.24663e+01 6.11865e+00 188 2014 6 2.30652e+01 1.14733e+01 129 2014 7 3.36096e+01 2.35824e+00 35 2014 8 3.46648e+01 3.11423e+00 120 2014 9 2.54977e+01 5.50235e+00 218 2014 10 2.17449e+01 4.76753e+00 301 2014 11 1.95074e+01 9.70688e+00 412 2014 12 2.52691e+01 7.44368e+00 402 2015 1 2.58027e+01 8.79915e+00 364 2015 2 2.76904e+01 1.26752e+01 232 2015 3 3.20943e+01 1.26442e+01 198 2015 4 2.45876e+01 5.03469e+00 230 2015 5 2.19150e+01 8.97339e+00 108 2015 6 2.45313e+01 1.38327e+00 37 2015 7 3.34394e+01 1.70654e-01 13 2015 8 3.41659e+01 4.53319e+00 240 2015 9 2.45191e+01 5.28426e+00 266 2015 10 2.40702e+01 4.22451e+00 328 2015 11 2.39576e+01 6.92788e+00 310 2015 12 2.94870e+01 9.37222e+00 457 2016 1 2.22298e+01 7.42396e+00 549 2016 2 2.13357e+01 4.19768e+00 216 2016 3 2.58414e+01 6.49727e+00 306 2016 4 2.75726e+01 4.54857e+00 306 2016 5 2.48212e+01 4.98359e+00 98 2016 6 2.72953e+01 3.46109e+00 110 2016 7 2.75226e+01 4.11366e+00 64 2016 8 nan nan 0 2016 9 2.60194e+01 5.64526e+00 164 2016 10 1.99015e+01 4.61541e+00 121 2016 11 2.84980e+01 7.54084e+00 31 2016 12 2.55921e+01 5.96436e+00 475 2017 1 2.02299e+01 6.81987e+00 424 2017 2 2.84486e+01 6.38313e+00 390 2017 3 2.82401e+01 5.69803e+00 151 2017 4 2.55323e+01 4.62889e+00 113 2017 5 2.46285e+01 5.41163e+00 233 2017 6 3.10493e+01 5.82628e+00 119 2017 7 2.71799e+01 5.36900e+00 114 2017 8 nan nan 0 2017 9 2.87696e+01 8.18821e+00 114 2017 10 3.15516e+01 7.51938e+00 237 2017 11 2.31304e+01 5.82700e+00 215 2017 12 2.85583e+01 5.37238e+00 315 2018 1 2.83674e+01 6.44692e+00 377 2018 2 3.04021e+01 8.52436e+00 300 2018 3 2.39136e+01 7.24630e+00 335 2018 4 2.73727e+01 8.51538e+00 385 2018 5 3.28377e+01 6.05673e+00 257 2018 6 3.07652e+01 9.59213e+00 74 2018 7 2.13195e+01 6.13258e+00 127 2018 8 2.97808e+01 5.41612e+00 119 2018 9 2.60826e+01 4.29415e+00 191 2018 10 2.11183e+01 7.31513e+00 296 2018 11 2.70275e+01 5.06092e+00 371 2018 12 3.05751e+01 6.33900e+00 296 2019 1 2.81625e+01 6.07822e+00 432 2019 2 2.79102e+01 9.54980e+00 436 2019 3 3.13377e+01 6.83867e+00 323 2019 4 2.78750e+01 4.35344e+00 260 2019 5 3.04634e+01 4.25746e+00 55 2019 6 2.74506e+01 4.91705e+00 192 2019 7 3.67907e+01 2.39612e+00 50 2019 8 3.35503e+01 6.79973e+00 197 2019 9 3.17538e+01 5.86507e+00 262 2019 10 3.00296e+01 5.69372e+00 205 2019 11 1.78066e+01 6.02379e+00 450 2019 12 2.10638e+01 4.89761e+00 449 2020 1 2.33098e+01 9.29255e+00 220 2020 2 2.34019e+01 4.66925e+00 514 2020 3 2.81950e+01 7.55574e+00 284 2020 4 3.56654e+01 7.11906e+00 505 2020 5 2.94330e+01 4.55425e+00 115 2020 6 2.43026e+01 4.34490e+00 241 2020 7 2.67459e+01 8.12134e+00 175 2020 8 3.18548e+01 5.85678e+00 127 2020 9 3.23692e+01 5.41311e+00 127 2020 10 2.67568e+01 5.61384e+00 259 2020 11 2.62120e+01 8.85102e+00 422 2020 12 1.96256e+01 7.85378e+00 402 2021 1 2.21459e+01 5.02271e+00 548 2021 2 2.79009e+01 8.30935e+00 373 2021 3 3.21804e+01 5.33340e+00 265 2021 4 3.28944e+01 6.06469e+00 185 2021 5 3.20345e+01 4.43608e+00 127 2021 6 1.41064e+01 2.13884e+00 31 2021 7 2.02589e+01 6.38524e+00 193 2021 8 2.79922e+01 3.73416e+00 36 2021 9 2.64000e+01 6.49619e+00 211 2021 10 2.75282e+01 4.20699e+00 371 2021 11 2.41587e+01 5.81796e+00 332 2021 12 2.36944e+01 4.74859e+00 374 2022 1 1.99024e+01 4.42818e+00 636 2022 2 2.16579e+01 5.05909e+00 301 2022 3 3.02381e+01 7.51432e+00 169 2022 4 3.85683e+01 9.82236e-01 31 2022 5 4.15198e+01 1.96877e+00 38 2022 6 3.62973e+01 6.95757e+00 288 2022 7 3.52176e+01 5.09166e+00 85 2022 8 2.97003e+01 8.55320e+00 166 2022 9 2.06368e+01 7.49463e+00 147 2022 10 3.59882e+01 6.12538e+00 211 2022 11 2.97047e+01 8.84430e+00 453 2022 12 2.32565e+01 1.01269e+01 834 2023 1 2.25872e+01 5.20800e+00 623 2023 2 2.45793e+01 6.34361e+00 338 2023 3 2.90966e+01 1.27450e+01 490 2023 4 3.32977e+01 6.19422e+00 629 2023 5 3.14624e+01 4.96391e+00 476 2023 6 2.87410e+01 2.45536e+00 193 2023 7 nan nan 0 2023 8 2.69720e+01 8.02181e+00 300 2023 9 2.39063e+01 4.99237e+00 243 2023 10 3.11246e+01 5.86303e+00 377 2023 11 3.55272e+01 5.51657e+00 431 2023 12 3.27184e+01 9.23162e+00 489 2024 1 2.62107e+01 7.75073e+00 405 2024 2 2.56272e+01 5.00616e+00 506 2024 3 3.11256e+01 8.51022e+00 362 2024 4 3.25920e+01 1.46067e+01 9