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 1.72332e+01 5.23339e+00 52 2002 8 1.14237e+01 3.90843e+00 64 2002 9 4.69483e+00 4.03405e+00 192 2002 10 5.54231e+00 4.67345e+00 550 2002 11 7.08805e+00 6.34383e+00 676 2002 12 7.34376e+00 5.73435e+00 505 2003 1 1.03450e+01 6.93679e+00 625 2003 2 5.64249e+00 6.19793e+00 542 2003 3 7.78414e+00 4.33655e+00 377 2003 4 3.28993e+00 2.73439e+00 99 2003 5 9.68048e+00 3.86335e+00 146 2003 6 3.16564e+00 1.55177e+00 64 2003 7 nan nan 0 2003 8 3.71710e+00 1.48676e+00 123 2003 9 6.26909e+00 2.51440e+00 131 2003 10 6.58090e+00 4.28861e+00 294 2003 11 4.69065e-01 5.69964e-01 355 2003 12 5.36988e+00 7.12872e+00 416 2004 1 1.52443e+00 1.52607e+00 416 2004 2 6.91844e+00 6.00625e+00 512 2004 3 8.70702e+00 7.61315e+00 636 2004 4 8.53535e+00 6.45509e+00 463 2004 5 5.72612e+00 6.05631e+00 111 2004 6 1.23664e+01 4.74123e+00 64 2004 7 1.36924e+01 4.45829e+00 54 2004 8 1.98870e+01 4.85630e+00 37 2004 9 7.18221e+00 2.94815e+00 64 2004 10 2.02948e+00 2.29867e+00 383 2004 11 1.46113e+00 2.38992e+00 363 2004 12 1.49651e+00 2.02998e+00 783 2005 1 8.08931e-01 1.71783e+00 371 2005 2 6.29768e+00 9.49372e+00 368 2005 3 1.01461e+01 6.60965e+00 354 2005 4 1.17216e+01 5.16866e+00 97 2005 5 6.37429e+00 7.01727e+00 92 2005 6 nan nan 0 2005 7 6.44979e+00 2.73905e+00 63 2005 8 9.32892e+00 1.99226e+00 48 2005 9 9.95568e-01 3.06776e-01 31 2005 10 5.32360e+00 2.71215e+00 260 2005 11 2.50857e+00 3.28012e+00 364 2005 12 5.06430e+00 3.72032e+00 732 2006 1 1.72992e+00 2.56901e+00 275 2006 2 8.70138e+00 8.21182e+00 631 2006 3 7.06722e+00 5.47104e+00 344 2006 4 nan nan 0 2006 5 1.21381e+01 1.34430e+00 2 2006 6 1.21155e+01 2.87314e+00 56 2006 7 1.06974e+01 7.71136e+00 141 2006 8 7.67809e+00 1.58247e+00 62 2006 9 4.82753e+00 5.11738e+00 344 2006 10 9.22158e+00 4.90973e+00 191 2006 11 5.22302e+00 3.75066e+00 638 2006 12 3.70736e+00 3.25796e+00 398 2007 1 7.91922e+00 5.59878e+00 513 2007 2 8.88055e+00 6.51228e+00 738 2007 3 5.85277e+00 3.28284e+00 103 2007 4 9.74035e+00 6.21415e+00 123 2007 5 4.99679e+00 8.85077e-01 29 2007 6 1.05836e+01 6.59094e+00 119 2007 7 9.16458e+00 1.98957e+00 64 2007 8 8.00131e+00 4.54592e+00 203 2007 9 6.22491e+00 2.09212e+00 197 2007 10 4.46337e+00 2.63908e+00 284 2007 11 1.95928e+00 2.43764e+00 336 2007 12 1.37339e+00 2.27259e+00 434 2008 1 4.00612e+00 4.70318e+00 712 2008 2 7.67481e+00 4.94979e+00 533 2008 3 7.88522e+00 6.25241e+00 436 2008 4 7.74621e+00 4.44986e+00 141 2008 5 7.72880e+00 7.87095e-01 29 2008 6 nan nan 0 2008 7 1.18947e+01 5.17958e+00 115 2008 8 1.05986e+01 5.11833e+00 162 2008 9 5.11876e+00 2.37847e+00 128 2008 10 4.29050e+00 3.00685e+00 660 2008 11 6.66394e+00 4.54710e+00 454 2008 12 5.12140e+00 3.87857e+00 573 2009 1 5.51085e+00 3.34006e+00 551 2009 2 8.66754e+00 5.01003e+00 311 2009 3 2.26357e+00 2.37819e+00 289 2009 4 1.06558e+01 4.05911e+00 293 2009 5 7.68644e+00 5.64049e+00 128 2009 6 9.13948e+00 4.84143e+00 124 2009 7 1.03712e+01 4.10283e+00 342 2009 8 1.74275e+01 8.06642e+00 58 2009 9 9.97562e+00 3.38860e+00 97 2009 10 7.72080e+00 5.05687e+00 597 2009 11 2.82023e+00 3.45023e+00 520 2009 12 5.59668e+00 5.26067e+00 675 2010 1 2.26570e+00 2.72291e+00 611 2010 2 4.02830e+00 3.48528e+00 396 2010 3 1.10141e+01 4.95940e+00 296 2010 4 8.25174e+00 4.45395e+00 180 2010 5 5.99794e+00 1.30361e+00 80 2010 6 1.10038e+01 4.19782e+00 217 2010 7 1.38048e+00 4.77549e-01 40 2010 8 5.80602e+00 2.98643e+00 84 2010 9 3.49402e+00 2.10965e+00 160 2010 10 3.65780e+00 2.61442e+00 373 2010 11 3.24533e+00 2.60707e+00 197 2010 12 4.72430e+00 6.57380e+00 416 2011 1 4.35317e+00 3.09085e+00 553 2011 2 7.61274e+00 5.08522e+00 470 2011 3 6.21295e+00 3.92966e+00 531 2011 4 1.00537e+01 5.95212e+00 367 2011 5 4.11788e+00 2.44291e+00 87 2011 6 3.64843e+00 8.74430e-01 57 2011 7 nan nan 0 2011 8 6.83368e+00 5.54855e+00 111 2011 9 3.25562e+00 1.92483e+00 282 2011 10 2.52978e+00 2.83675e+00 455 2011 11 5.20422e-01 9.41966e-01 334 2011 12 2.01798e+00 2.96365e+00 325 2012 1 3.66817e+00 4.03891e+00 742 2012 2 2.97166e+00 5.09465e+00 669 2012 3 9.21469e+00 6.86740e+00 244 2012 4 9.87939e-01 6.26258e-01 82 2012 5 4.71605e+00 1.19114e+00 124 2012 6 1.06996e+01 3.97957e+00 64 2012 7 1.28878e+01 3.74103e+00 63 2012 8 8.19754e+00 3.79602e+00 64 2012 9 3.95465e+00 2.32938e+00 238 2012 10 5.60023e+00 3.75729e+00 138 2012 11 2.25457e+00 2.31861e+00 498 2012 12 3.67536e+00 2.04967e+00 394 2013 1 5.04166e+00 3.55018e+00 515 2013 2 5.78429e+00 3.95577e+00 595 2013 3 3.67506e+00 3.32575e+00 380 2013 4 1.15222e+01 9.89545e+00 340 2013 5 8.35634e+00 1.79527e+00 57 2013 6 nan nan 0 2013 7 5.45589e+00 3.73155e+00 120 2013 8 8.72666e+00 4.11627e+00 192 2013 9 1.80374e+00 2.19786e-01 8 2013 10 9.68142e+00 3.66409e+00 192 2013 11 1.45382e+00 2.18572e+00 425 2013 12 3.59794e+00 2.84776e+00 600 2014 1 9.69176e+00 6.78521e+00 586 2014 2 3.57493e+00 2.94101e+00 469 2014 3 9.54237e+00 7.19345e+00 588 2014 4 9.13524e+00 5.04553e+00 290 2014 5 7.93067e+00 2.46417e+00 64 2014 6 8.87860e+00 3.77783e+00 64 2014 7 1.00998e+01 4.19495e+00 117 2014 8 1.31802e+01 7.58435e+00 124 2014 9 6.26845e+00 3.49689e+00 290 2014 10 6.67905e+00 5.80370e+00 410 2014 11 4.53768e+00 3.74779e+00 568 2014 12 4.09440e+00 3.40420e+00 579 2015 1 7.28100e+00 5.52286e+00 607 2015 2 4.79729e+00 4.35428e+00 602 2015 3 5.16725e+00 4.25015e+00 483 2015 4 1.48409e+01 7.06142e+00 375 2015 5 1.81247e+01 3.89342e+00 119 2015 6 1.49004e+01 3.96442e+00 56 2015 7 1.56351e+01 1.16872e-01 8 2015 8 1.10083e+01 5.29942e+00 380 2015 9 9.69697e+00 4.97503e+00 251 2015 10 6.75526e+00 3.99197e+00 338 2015 11 6.63384e+00 3.25875e+00 378 2015 12 2.42868e+00 2.32617e+00 509 2016 1 3.79157e+00 5.39078e+00 453 2016 2 7.04080e+00 6.06424e+00 694 2016 3 3.56499e+00 2.43416e+00 285 2016 4 6.42753e+00 3.25397e+00 243 2016 5 1.35084e+01 2.49221e+00 52 2016 6 1.40618e+01 3.58986e+00 110 2016 7 9.41071e+00 2.93212e+00 113 2016 8 1.20534e+01 3.66047e+00 139 2016 9 9.37913e+00 4.34811e+00 297 2016 10 4.24018e-01 4.30386e-01 128 2016 11 4.11071e+00 2.78055e+00 64 2016 12 5.68635e+00 4.42403e+00 426 2017 1 2.38749e+00 3.39414e+00 467 2017 2 6.82767e+00 4.09649e+00 609 2017 3 6.23481e+00 3.44878e+00 242 2017 4 5.16351e+00 2.73497e+00 291 2017 5 1.00458e+01 3.77503e+00 176 2017 6 1.12343e+01 3.55319e+00 300 2017 7 8.40282e+00 4.39464e+00 238 2017 8 8.30956e+00 3.86094e+00 65 2017 9 2.14401e+00 1.97872e+00 249 2017 10 3.86697e+00 5.29240e+00 250 2017 11 3.26126e+00 3.81083e+00 461 2017 12 4.98531e+00 4.82620e+00 491 2018 1 1.35362e+00 1.22362e+00 281 2018 2 1.77916e+00 2.93183e+00 404 2018 3 3.66568e+00 3.49025e+00 255 2018 4 1.17150e+01 4.27733e+00 235 2018 5 1.08982e+01 3.93099e+00 125 2018 6 1.44706e+01 6.23494e+00 198 2018 7 1.10899e+01 2.74119e+00 56 2018 8 9.60194e+00 5.92408e+00 188 2018 9 5.36588e+00 2.72415e+00 245 2018 10 7.17085e+00 4.53652e+00 590 2018 11 4.44154e+00 3.86403e+00 795 2018 12 5.45131e+00 4.10063e+00 487 2019 1 9.84503e+00 5.42680e+00 718 2019 2 9.35219e+00 5.90828e+00 485 2019 3 9.72545e+00 5.31612e+00 539 2019 4 1.43277e+01 7.99592e+00 383 2019 5 3.82730e+00 7.71879e-01 36 2019 6 9.57048e+00 1.57349e+00 64 2019 7 1.62497e+01 9.49001e-01 5 2019 8 1.15769e+01 7.48712e+00 183 2019 9 7.33771e+00 2.50407e+00 64 2019 10 1.00934e+01 5.22020e+00 410 2019 11 6.01118e+00 4.59799e+00 817 2019 12 2.80526e+00 3.85381e+00 581 2020 1 3.00331e+00 3.37513e+00 476 2020 2 7.77341e+00 5.43088e+00 620 2020 3 3.62958e+00 2.75691e+00 356 2020 4 8.19597e+00 6.20168e+00 361 2020 5 1.38295e+01 3.68815e+00 103 2020 6 1.06411e+01 5.16666e+00 274 2020 7 8.48350e+00 5.08336e+00 221 2020 8 9.90524e+00 4.35239e+00 119 2020 9 8.96201e+00 1.00802e+01 128 2020 10 8.68333e+00 4.71100e+00 277 2020 11 3.84741e+00 3.48709e+00 518 2020 12 3.03899e+00 3.86762e+00 618 2021 1 6.83124e+00 4.08118e+00 831 2021 2 5.40375e+00 4.66089e+00 585 2021 3 3.43176e+00 4.09710e+00 295 2021 4 1.57846e+01 6.79355e+00 270 2021 5 9.45293e+00 4.52724e+00 199 2021 6 nan nan 0 2021 7 7.82972e+00 3.36474e+00 212 2021 8 6.26309e+00 1.22566e+00 61 2021 9 7.84401e+00 4.45059e+00 307 2021 10 8.62543e+00 5.89574e+00 326 2021 11 6.06655e+00 4.38660e+00 808 2021 12 6.08779e+00 4.21165e+00 441 2022 1 9.47528e+00 5.55662e+00 1034 2022 2 2.53492e+00 2.76386e+00 581 2022 3 5.49651e+00 5.53603e+00 413 2022 4 9.60491e+00 3.46833e+00 113 2022 5 7.90118e+00 5.88489e+00 193 2022 6 1.37127e+01 6.43234e+00 206 2022 7 2.01376e+01 6.48326e+00 128 2022 8 1.50179e+01 1.00446e+01 227 2022 9 6.15203e+00 4.46008e+00 202 2022 10 4.88007e+00 3.20039e+00 436 2022 11 3.80768e+00 3.23217e+00 695 2022 12 1.92981e+00 2.56396e+00 848 2023 1 7.20726e+00 4.45372e+00 858 2023 2 6.32434e+00 5.08637e+00 458 2023 3 1.44656e+01 8.83347e+00 598 2023 4 7.37987e+00 5.00507e+00 308 2023 5 6.12780e+00 3.63244e+00 67 2023 6 9.18216e+00 4.78239e+00 116 2023 7 nan nan 0 2023 8 1.60960e+01 7.70918e+00 158 2023 9 5.98309e+00 5.47815e+00 174 2023 10 1.07480e+01 6.73692e+00 199 2023 11 6.39701e+00 5.30138e+00 669 2023 12 5.54166e+00 5.13067e+00 544 2024 1 8.23194e+00 5.92328e+00 783 2024 2 3.73877e+00 4.84056e+00 338 2024 3 1.02008e+01 6.28965e+00 387 2024 4 nan nan 0