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 2.95898e+00 8.82328e-01 121 2002 8 1.60071e+00 9.04666e-01 121 2002 9 4.92768e+00 1.44964e+00 64 2002 10 3.55548e+00 1.65348e+00 594 2002 11 7.12614e+00 4.72303e+00 587 2002 12 7.32090e+00 4.49370e+00 415 2003 1 1.19716e+01 8.01843e+00 768 2003 2 6.42098e+00 2.91077e+00 519 2003 3 1.78251e+01 1.19158e+01 88 2003 4 nan nan 0 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 5.92220e+00 7.34065e+00 89 2003 9 5.32309e+00 3.42678e+00 128 2003 10 6.47411e+00 2.32234e+00 287 2003 11 4.41742e+00 1.60880e+00 635 2003 12 5.91798e+00 2.09292e+00 620 2004 1 4.73230e+00 1.37008e+00 762 2004 2 6.58395e+00 2.96506e+00 196 2004 3 1.01667e+01 6.95200e+00 493 2004 4 6.37653e+00 2.52392e+00 319 2004 5 4.44796e+00 2.13057e+00 167 2004 6 3.02636e+00 2.90183e+00 188 2004 7 4.19711e+00 1.50139e+00 111 2004 8 3.26250e+00 1.79010e+00 176 2004 9 1.57857e+01 9.41842e+00 38 2004 10 1.81192e+01 8.15554e+00 148 2004 11 2.11111e+01 9.35340e+00 158 2004 12 1.19989e+01 5.36330e+00 258 2005 1 1.15149e+01 5.63436e+00 382 2005 2 9.09882e+00 3.57373e+00 357 2005 3 7.77776e+00 4.10238e+00 276 2005 4 1.47157e+01 8.37914e+00 89 2005 5 2.18935e+01 5.76419e+00 3 2005 6 1.06432e+01 1.03580e+01 78 2005 7 2.31796e+01 9.72872e+00 58 2005 8 3.28668e+01 5.19172e+00 7 2005 9 8.46447e+00 3.38073e+00 205 2005 10 6.09481e+00 3.05978e+00 429 2005 11 4.12140e+00 1.28121e+00 555 2005 12 4.94513e+00 2.38747e+00 510 2006 1 1.01816e+01 4.82495e+00 413 2006 2 1.14207e+01 5.30710e+00 392 2006 3 1.40366e+01 6.18851e+00 657 2006 4 6.39065e+00 3.52532e+00 202 2006 5 4.54895e+00 1.13227e+00 152 2006 6 3.48877e+00 1.28981e+00 169 2006 7 4.78270e+00 1.11060e+00 50 2006 8 4.33988e+00 1.84896e+00 64 2006 9 4.13182e+00 1.42113e+00 338 2006 10 4.02761e+00 1.72237e+00 437 2006 11 3.30348e+00 1.21337e+00 502 2006 12 1.91007e+00 7.45609e-01 258 2007 1 3.18615e+00 1.15586e+00 316 2007 2 3.23023e+00 1.17089e+00 534 2007 3 2.76668e+00 1.14827e+00 666 2007 4 3.17741e+00 8.34928e-01 310 2007 5 2.13773e+00 6.00842e-01 40 2007 6 3.07325e+00 1.75903e+00 72 2007 7 3.79078e+00 3.54556e+00 181 2007 8 3.12639e+00 7.42508e-01 150 2007 9 2.55457e+00 2.42111e+00 175 2007 10 1.58087e+00 1.29194e+00 324 2007 11 1.92585e+00 9.01159e-01 705 2007 12 1.85681e+00 1.25621e+00 359 2008 1 3.23898e+00 1.85278e+00 439 2008 2 2.82719e+00 1.37231e+00 635 2008 3 3.78443e+00 2.04226e+00 384 2008 4 9.31260e+00 7.66208e+00 207 2008 5 5.34473e+00 1.68932e+00 223 2008 6 3.88254e+00 2.09274e+00 183 2008 7 3.86692e+00 1.56492e+00 165 2008 8 4.66083e+00 1.45066e+00 64 2008 9 8.33733e+00 6.82341e+00 128 2008 10 4.35498e+00 2.39871e+00 610 2008 11 3.59597e+00 1.62613e+00 686 2008 12 5.35300e+00 2.77984e+00 615 2009 1 5.76834e+00 3.77599e+00 595 2009 2 4.41634e+00 2.23617e+00 709 2009 3 3.28582e+00 1.83481e+00 455 2009 4 5.53570e+00 2.51321e+00 228 2009 5 7.45876e+00 4.10358e+00 107 2009 6 4.57699e+00 1.38691e+00 132 2009 7 3.62803e+00 6.76773e-01 63 2009 8 6.01035e+00 2.75098e+00 172 2009 9 5.44169e+00 2.82275e+00 235 2009 10 4.24928e+00 3.75640e+00 385 2009 11 2.46655e+00 9.84591e-01 465 2009 12 4.18879e+00 2.19692e+00 188 2010 1 5.79716e+00 2.47337e+00 641 2010 2 2.38089e+01 1.19932e+01 216 2010 3 2.12606e+01 8.66315e+00 368 2010 4 1.21309e+01 6.49192e+00 199 2010 5 1.05377e+01 8.72916e+00 162 2010 6 7.19895e+00 3.78350e+00 97 2010 7 5.65719e+00 2.03391e+00 129 2010 8 7.95438e+00 3.78391e+00 78 2010 9 6.15587e+00 4.65554e+00 173 2010 10 4.46353e+00 2.12753e+00 951 2010 11 3.46557e+00 2.22976e+00 767 2010 12 3.91529e+00 2.32138e+00 633 2011 1 3.83819e+00 1.99505e+00 534 2011 2 4.87553e+00 2.82806e+00 491 2011 3 4.70090e+00 2.10979e+00 669 2011 4 3.58073e+00 9.68715e-01 372 2011 5 2.90495e+00 1.01388e+00 262 2011 6 2.13059e+00 4.49257e-01 34 2011 7 5.17858e+00 3.05832e+00 59 2011 8 3.50962e+00 1.68095e+00 172 2011 9 2.81482e+00 1.35316e+00 423 2011 10 2.98376e+00 1.53071e+00 726 2011 11 2.55873e+00 1.33959e+00 588 2011 12 2.31166e+00 9.85047e-01 613 2012 1 3.04636e+00 1.55176e+00 840 2012 2 2.76303e+00 1.10664e+00 246 2012 3 3.39035e+00 2.55217e+00 577 2012 4 2.73945e+00 9.65751e-01 403 2012 5 2.10425e+00 7.70631e-01 236 2012 6 1.30492e+00 1.43105e+00 4 2012 7 3.17958e+01 1.00062e+01 31 2012 8 nan nan 0 2012 9 2.72137e+01 1.31584e+01 40 2012 10 2.00883e+01 9.38752e+00 85 2012 11 8.81480e+00 3.84151e+00 553 2012 12 8.23844e+00 3.23275e+00 138 2013 1 5.48373e+00 3.32415e+00 402 2013 2 5.24826e+00 1.61457e+00 299 2013 3 7.09816e+00 2.27278e+00 506 2013 4 1.03755e+01 5.32753e+00 237 2013 5 6.04957e+00 1.56622e+00 150 2013 6 7.68945e+00 7.64678e+00 173 2013 7 4.74538e-05 0.00000e+00 2 2013 8 1.96247e+01 9.05158e+00 17 2013 9 1.38203e+01 1.20869e+01 103 2013 10 1.29661e+01 8.26596e+00 305 2013 11 6.52508e+00 3.61963e+00 206 2013 12 4.54397e+00 1.89779e+00 488 2014 1 7.42683e+00 3.83534e+00 412 2014 2 7.48026e+00 4.33812e+00 388 2014 3 1.72733e+01 1.06024e+01 240 2014 4 2.81311e+01 1.15159e+01 7 2014 5 nan nan 0 2014 6 1.38780e+01 5.79249e+00 22 2014 7 1.31942e+01 7.27685e+00 269 2014 8 1.53585e+01 1.05583e+01 75 2014 9 5.58763e+00 1.29452e+00 65 2014 10 8.21437e+00 4.39325e+00 859 2014 11 5.80985e+00 2.59729e+00 654 2014 12 3.83295e+00 1.80176e+00 389 2015 1 4.81408e+00 2.78097e+00 510 2015 2 7.84448e+00 3.99665e+00 563 2015 3 1.12654e+01 4.81778e+00 335 2015 4 nan nan 0 2015 5 6.52331e+00 2.96057e+00 129 2015 6 6.56916e+00 2.16166e+00 147 2015 7 5.37621e+00 2.30510e+00 135 2015 8 1.62884e+01 8.78058e+00 97 2015 9 1.04250e+01 7.73931e+00 78 2015 10 5.82322e+00 1.92167e+00 323 2015 11 6.77092e+00 3.24247e+00 322 2015 12 4.24806e+00 2.14922e+00 468 2016 1 4.37173e+00 1.73570e+00 372 2016 2 7.00593e+00 3.54395e+00 600 2016 3 7.38020e+00 4.27057e+00 491 2016 4 5.51208e+00 3.30033e+00 329 2016 5 6.89264e+00 2.67879e+00 105 2016 6 5.73601e+00 2.39986e+00 171 2016 7 5.83091e+00 2.66321e+00 236 2016 8 1.32842e+01 8.51562e+00 214 2016 9 1.27880e+01 8.26489e+00 253 2016 10 8.32601e+00 5.63444e+00 409 2016 11 4.41000e+00 2.85410e+00 568 2016 12 4.12139e+00 2.01810e+00 417 2017 1 6.26959e+00 3.82978e+00 432 2017 2 4.79790e+00 2.69427e+00 733 2017 3 4.12084e+00 1.75575e+00 492 2017 4 5.43070e+00 3.00715e+00 395 2017 5 6.02670e+00 2.82347e+00 148 2017 6 2.48183e+00 1.83962e+00 101 2017 7 7.63234e+00 4.01393e+00 55 2017 8 6.20694e+00 3.58259e+00 192 2017 9 8.95655e+00 6.64157e+00 268 2017 10 1.27987e+01 6.11701e+00 235 2017 11 4.98942e+00 2.93986e+00 694 2017 12 3.80015e+00 1.54002e+00 459 2018 1 5.15548e+00 2.44070e+00 426 2018 2 3.49538e+00 9.59441e-01 407 2018 3 7.00222e+00 5.06676e+00 657 2018 4 8.10360e+00 7.44941e+00 158 2018 5 6.92267e+00 3.18084e+00 331 2018 6 9.84114e+00 7.69934e+00 235 2018 7 1.16044e+01 8.70138e+00 51 2018 8 1.86894e+01 1.48592e+01 57 2018 9 1.23507e+01 1.10563e+01 222 2018 10 1.00901e+01 5.77680e+00 564 2018 11 9.51395e+00 4.20270e+00 150 2018 12 1.40799e+01 1.20391e+01 221 2019 1 2.01980e+01 8.40168e+00 208 2019 2 1.39288e+01 7.45443e+00 289 2019 3 1.15047e+01 7.52696e+00 447 2019 4 8.08039e+00 3.83523e+00 316 2019 5 5.19110e+00 2.53963e+00 159 2019 6 3.09802e+00 1.99176e-01 2 2019 7 5.57166e+00 1.39413e+00 69 2019 8 1.01406e+01 6.71242e+00 76 2019 9 7.13932e+00 4.29198e+00 120 2019 10 5.29388e+00 1.91492e+00 353 2019 11 3.66668e+00 1.48542e+00 465 2019 12 4.28424e+00 3.39791e+00 256 2020 1 4.42771e+00 1.34621e+00 387 2020 2 5.98966e+00 3.68191e+00 331 2020 3 4.87274e+00 2.63342e+00 473 2020 4 4.86656e+00 1.53274e+00 374 2020 5 5.62829e+00 2.11882e+00 220 2020 6 5.45630e+00 3.58593e+00 160 2020 7 5.54740e+00 2.16953e+00 98 2020 8 5.25793e+00 3.78613e+00 131 2020 9 1.63778e+01 5.81767e+00 115 2020 10 1.60055e+01 1.06674e+01 93 2020 11 7.16134e+00 4.31948e+00 335 2020 12 5.20033e+00 2.82066e+00 344 2021 1 7.67969e+00 2.36179e+00 391 2021 2 1.29525e+01 8.57607e+00 280 2021 3 1.45236e+01 7.71690e+00 213 2021 4 1.08750e+01 7.28857e+00 203 2021 5 6.60602e+00 3.28974e+00 314 2021 6 3.50517e+00 1.10296e+00 118 2021 7 nan nan 0 2021 8 nan nan 0 2021 9 1.07375e+01 4.41563e+00 173 2021 10 1.12912e+01 1.05861e+01 224 2021 11 7.25080e+00 3.89004e+00 379 2021 12 5.50019e+00 2.21393e+00 422 2022 1 5.60306e+00 1.63869e+00 512 2022 2 4.58320e+00 1.98645e+00 613 2022 3 9.86318e+00 1.03849e+01 439 2022 4 5.66050e-01 2.14806e-01 2 2022 5 1.00007e+01 4.15712e+00 301 2022 6 6.35161e+00 3.57925e+00 198 2022 7 4.31290e+00 1.54071e+00 127 2022 8 4.49668e+00 1.53377e+00 161 2022 9 6.01195e+00 4.17421e+00 183 2022 10 4.03073e+00 2.54335e+00 849 2022 11 4.23228e+00 2.01197e+00 393 2022 12 3.54541e+00 2.20310e+00 786 2023 1 3.30317e+00 1.94757e+00 733 2023 2 4.21210e+00 2.24973e+00 464 2023 3 6.24303e+00 3.82803e+00 561 2023 4 5.15672e+00 2.76552e+00 426 2023 5 6.73557e+00 4.44952e+00 110 2023 6 1.30224e+00 7.10312e-01 182 2023 7 8.56832e+00 4.35362e+00 55 2023 8 9.87619e+00 7.72760e+00 242 2023 9 1.44095e+01 1.02371e+01 242 2023 10 9.75402e+00 4.90483e+00 292 2023 11 5.89786e+00 4.70903e+00 535 2023 12 2.72448e+01 9.05420e+00 90 2024 1 2.01148e+01 1.29554e+01 57 2024 2 2.19115e+01 9.29373e+00 354 2024 3 1.13746e+01 7.45751e+00 47 2024 4 nan nan 0