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 2.38178e+01 1.09131e+00 58 2002 8 2.14318e+01 1.50331e+00 90 2002 9 1.38153e+01 2.20521e+00 87 2002 10 9.38215e+00 3.27318e+00 440 2002 11 6.23232e+00 6.11647e+00 360 2002 12 1.92658e+00 2.78121e+00 412 2003 1 1.67818e+00 1.95836e+00 704 2003 2 1.32191e+01 2.58995e+00 690 2003 3 2.05811e+01 1.72787e+00 309 2003 4 2.33243e+01 5.28960e+00 26 2003 5 2.31712e+01 1.25810e+00 115 2003 6 2.94701e+01 5.73190e-01 14 2003 7 nan nan 0 2003 8 1.95207e+01 1.36524e+00 14 2003 9 1.51585e+01 3.30146e+00 114 2003 10 4.39687e+00 3.63806e+00 157 2003 11 2.81364e+00 2.24465e+00 469 2003 12 2.82310e+00 3.01206e+00 319 2004 1 8.51788e+00 1.28379e+00 90 2004 2 nan nan 0 2004 3 2.17267e+01 1.36712e+00 65 2004 4 2.48382e+01 1.44706e+00 128 2004 5 2.01959e+01 2.97064e+00 290 2004 6 1.86894e+01 3.78704e+00 227 2004 7 2.12782e+01 2.90088e+00 71 2004 8 1.76998e+01 2.71423e+00 74 2004 9 5.03067e+00 3.95138e+00 47 2004 10 8.71381e+00 3.67436e+00 308 2004 11 5.16788e+00 4.91449e+00 334 2004 12 6.96436e+00 5.44270e+00 214 2005 1 1.47841e+00 1.52404e+00 965 2005 2 9.23001e+00 4.50842e+00 538 2005 3 1.92474e+01 7.76916e+00 158 2005 4 2.00567e+01 5.80958e-01 64 2005 5 2.25459e+01 4.47785e+00 140 2005 6 7.59930e+00 6.88241e+00 12 2005 7 2.35406e+01 1.29923e+00 53 2005 8 1.89244e+01 4.15169e+00 34 2005 9 nan nan 0 2005 10 2.96734e+01 1.73914e+01 7 2005 11 6.67138e-01 6.64248e-01 447 2005 12 8.20959e-01 1.03375e+00 631 2006 1 2.32992e+00 1.73836e+00 477 2006 2 6.45457e+00 3.61330e+00 448 2006 3 9.49842e+00 4.13521e+00 542 2006 4 2.01250e+01 3.27872e+00 109 2006 5 1.99271e+01 1.49064e+00 77 2006 6 1.88535e+01 2.00971e+00 129 2006 7 2.34497e+01 5.58903e+00 67 2006 8 3.00116e+01 8.49578e+00 32 2006 9 7.16277e+00 5.68486e+00 5 2006 10 3.22189e+00 3.77889e-01 4 2006 11 4.19987e+00 3.55908e+00 385 2006 12 4.34518e+00 4.20799e+00 299 2007 1 5.83166e+00 2.99013e+00 715 2007 2 1.68927e+00 5.82161e-01 43 2007 3 1.03471e+01 2.75715e+00 107 2007 4 2.08983e+01 1.68722e-01 64 2007 5 2.04683e+01 3.42600e+00 171 2007 6 1.51056e+01 3.42001e-01 13 2007 7 2.92561e+01 4.24642e+00 6 2007 8 3.48821e+01 9.02879e+00 16 2007 9 8.61570e+00 2.87722e+00 51 2007 10 6.38470e+00 1.05773e+01 263 2007 11 3.22125e+00 2.61390e+00 476 2007 12 6.25208e+00 4.84952e+00 727 2008 1 3.04490e+00 3.59442e+00 424 2008 2 1.53687e+01 1.95518e+00 20 2008 3 nan nan 0 2008 4 1.95271e+01 2.65275e+00 22 2008 5 2.47395e+01 3.05529e+00 171 2008 6 3.21510e+01 2.31336e+00 66 2008 7 1.57397e+01 5.32756e+00 122 2008 8 2.24979e+01 2.61529e+00 74 2008 9 1.65479e+00 1.05112e-01 3 2008 10 1.45611e+01 9.22101e-01 36 2008 11 1.52807e+00 1.68903e+00 611 2008 12 3.27823e+00 2.32088e+00 845 2009 1 5.56024e+00 3.92721e+00 512 2009 2 1.22869e+01 0.00000e+00 1 2009 3 2.12532e+01 1.07429e+00 40 2009 4 1.88857e+01 1.10872e+00 63 2009 5 2.33775e+01 7.25295e-01 64 2009 6 2.45741e+01 1.98062e+00 86 2009 7 1.07454e+01 4.38668e+00 13 2009 8 2.19441e+01 5.90505e+00 33 2009 9 1.78339e+01 1.80024e+00 9 2009 10 1.48777e+01 9.44512e-01 63 2009 11 1.93792e+00 2.23833e+00 277 2009 12 5.96439e+00 6.90589e+00 397 2010 1 2.12655e+00 2.57630e+00 192 2010 2 nan nan 0 2010 3 nan nan 0 2010 4 1.36754e+01 3.19293e+00 197 2010 5 2.21057e+01 6.75423e+00 58 2010 6 3.92706e+01 1.26447e+00 12 2010 7 2.44037e+01 6.14500e-01 44 2010 8 2.87845e+01 2.43055e+00 72 2010 9 2.10913e+01 1.73287e+00 25 2010 10 7.77739e+00 9.93896e+00 178 2010 11 5.02962e+00 3.61365e+00 654 2010 12 1.98137e-01 3.38268e-01 366 2011 1 nan nan 0 2011 2 1.14539e+01 0.00000e+00 1 2011 3 2.41423e+01 9.46201e-01 73 2011 4 2.54129e+01 1.68002e+00 196 2011 5 2.29663e+01 1.50679e+00 320 2011 6 1.83380e+01 1.82389e+00 64 2011 7 2.33892e+01 3.76302e-01 63 2011 8 2.38595e+01 8.20343e-01 64 2011 9 2.40185e+01 1.47342e+00 3 2011 10 8.97287e+00 5.38589e+00 212 2011 11 2.17157e+00 2.42331e+00 253 2011 12 3.28298e+00 3.50684e+00 870 2012 1 8.31563e+00 4.42870e+00 329 2012 2 5.00865e+00 3.58286e+00 490 2012 3 1.08611e+01 4.80323e+00 389 2012 4 1.35848e+01 2.24042e+00 244 2012 5 3.58825e+01 0.00000e+00 1 2012 6 1.25202e+01 7.18834e-01 65 2012 7 1.37814e+01 1.04662e+00 54 2012 8 1.47309e+01 2.90503e-01 9 2012 9 8.30255e+00 5.62102e-01 10 2012 10 1.27677e+00 2.61253e+00 122 2012 11 3.39122e+00 5.50865e+00 730 2012 12 4.72080e+00 3.16912e+00 559 2013 1 4.76127e+00 5.16700e+00 450 2013 2 9.99993e+00 5.53593e+00 579 2013 3 1.45768e+01 8.43358e+00 30 2013 4 2.06374e+01 9.67859e-01 38 2013 5 3.85524e+01 9.77826e+00 19 2013 6 nan nan 0 2013 7 1.98767e+01 4.83120e+00 57 2013 8 1.48928e+01 1.29848e+00 6 2013 9 1.50974e+01 1.67615e+00 208 2013 10 1.23053e+01 4.36359e+00 326 2013 11 4.21949e+00 3.75394e+00 488 2013 12 3.99160e+00 3.61651e+00 625 2014 1 1.65420e+00 2.49428e+00 438 2014 2 1.01922e+01 5.37396e+00 378 2014 3 1.97881e+01 5.32372e-01 4 2014 4 1.76748e+01 7.43192e-01 8 2014 5 4.86980e+00 1.36355e+00 52 2014 6 1.94801e+01 7.94462e-01 10 2014 7 2.97784e+01 6.65646e+00 32 2014 8 1.90338e+01 3.55464e+00 131 2014 9 2.31591e+01 1.62027e+00 216 2014 10 2.31401e+01 1.05062e+00 45 2014 11 6.58580e-01 8.07574e-01 204 2014 12 4.43809e+00 4.19500e+00 955 2015 1 6.85386e+00 6.38140e+00 391 2015 2 2.48591e+00 2.16477e+00 494 2015 3 1.80552e+01 2.98077e+00 96 2015 4 2.02598e+01 8.34491e+00 98 2015 5 2.54923e+01 4.96489e-01 22 2015 6 1.54150e+01 6.91613e+00 182 2015 7 1.10780e+01 2.89944e+00 340 2015 8 1.66700e+01 5.19907e-01 34 2015 9 1.32217e+01 3.45293e-01 26 2015 10 4.92234e+00 5.92670e+00 92 2015 11 9.44706e+00 8.26237e+00 197 2015 12 8.98076e+00 7.33552e+00 485 2016 1 6.61297e+00 7.01794e+00 38 2016 2 2.96267e+00 3.14503e+00 298 2016 3 9.19580e+00 5.72342e+00 136 2016 4 2.12095e+01 6.17921e+00 149 2016 5 9.83166e+00 5.17477e+00 183 2016 6 1.16866e+01 5.04589e+00 117 2016 7 1.86788e+01 0.00000e+00 3 2016 8 2.00338e+01 1.16048e+00 68 2016 9 1.15503e+01 3.76695e+00 157 2016 10 4.14751e+00 4.38144e+00 804 2016 11 3.52007e+00 2.45826e+00 1102 2016 12 5.25646e+00 3.06315e+00 448 2017 1 1.09630e+01 5.31797e+00 408 2017 2 7.10326e+00 6.11760e+00 192 2017 3 6.50429e+00 3.20915e-01 3 2017 4 2.11858e+01 4.50046e+00 94 2017 5 9.95775e+00 4.16533e-01 64 2017 6 2.46660e+01 2.25780e-01 10 2017 7 2.58733e+01 1.00217e+00 53 2017 8 1.73097e+01 6.65272e+00 311 2017 9 1.38516e+01 1.41862e+01 165 2017 10 4.02984e+00 2.52181e+00 179 2017 11 2.53629e+00 1.93725e+00 1064 2017 12 7.73380e+00 3.56968e+00 846 2018 1 5.37664e+00 4.16032e+00 316 2018 2 1.17410e+01 6.13093e+00 595 2018 3 1.80731e+01 3.99883e+00 97 2018 4 1.92407e+01 1.98418e+00 135 2018 5 1.66398e+01 5.56598e+00 95 2018 6 2.19119e+01 2.87631e+00 28 2018 7 2.48240e+01 4.73836e+00 195 2018 8 3.57566e+00 5.76028e+00 152 2018 9 1.22757e+01 1.70438e+00 228 2018 10 6.09004e+00 2.19355e+00 627 2018 11 2.37012e+00 2.38403e+00 130 2018 12 1.29943e+00 1.51450e+00 353 2019 1 3.07770e+00 4.66316e+00 237 2019 2 8.65073e+00 5.97858e+00 683 2019 3 1.11589e+01 6.88212e+00 393 2019 4 5.10136e+00 2.24727e+00 483 2019 5 1.18340e+01 4.72050e+00 136 2019 6 1.21750e+01 4.71784e+00 361 2019 7 1.37351e+01 3.38366e+00 176 2019 8 1.31502e+01 1.23083e-01 4 2019 9 1.21244e+01 2.03729e+00 49 2019 10 1.99526e+01 1.04744e+01 101 2019 11 5.64829e+00 4.24181e+00 290 2019 12 3.22376e+00 3.56292e+00 202 2020 1 3.73394e+00 2.97384e+00 583 2020 2 5.99884e+00 3.43431e+00 205 2020 3 1.23288e+01 4.28589e+00 141 2020 4 1.82512e+01 1.75625e+00 233 2020 5 1.74584e+01 8.61498e+00 298 2020 6 1.31950e+01 8.07565e+00 109 2020 7 1.59333e+01 3.17899e+00 189 2020 8 1.33256e+01 3.36687e+00 131 2020 9 1.88226e+01 1.38394e+01 291 2020 10 1.06408e+01 2.05314e+00 350 2020 11 5.39638e+00 6.62451e+00 474 2020 12 1.12201e+00 1.63956e+00 581 2021 1 7.12627e+00 4.18898e+00 656 2021 2 8.29013e+00 5.11335e+00 181 2021 3 8.45124e+00 6.21444e+00 780 2021 4 1.03356e+01 4.02900e+00 292 2021 5 1.28333e+01 3.96635e+00 387 2021 6 7.64757e+00 4.04394e+00 236 2021 7 6.80577e+00 3.46366e+00 355 2021 8 1.08710e+01 2.18551e+00 348 2021 9 1.24838e+01 3.11932e+00 279 2021 10 1.04565e+01 6.50095e+00 334 2021 11 2.18162e+00 2.37973e+00 415 2021 12 5.39190e+00 3.86177e+00 807 2022 1 5.82715e+00 6.21294e+00 273 2022 2 3.57778e+00 3.77974e+00 460 2022 3 3.33300e+00 2.51877e+00 101 2022 4 1.56128e+01 1.58816e+01 11 2022 5 1.60034e+01 4.65642e+00 32 2022 6 1.44229e+01 1.46595e+00 7 2022 7 2.59978e+01 8.70000e+00 32 2022 8 2.68495e+01 6.43351e+00 8 2022 9 2.32713e+01 1.12580e+00 63 2022 10 1.12950e+00 1.38142e+00 318 2022 11 3.73738e+00 5.20006e+00 544 2022 12 2.34254e+00 2.30493e+00 827 2023 1 2.66700e+00 3.07509e+00 704 2023 2 6.80431e+00 3.38019e+00 942 2023 3 1.05785e+01 4.98757e+00 354 2023 4 1.53514e+01 2.49146e+00 82 2023 5 nan nan 0 2023 6 1.08385e+01 4.33525e+00 11 2023 7 1.67502e+01 6.45042e+00 139 2023 8 1.60761e+01 9.44017e-01 56 2023 9 2.28164e+01 1.39199e-01 4 2023 10 4.22693e+00 6.46973e+00 66 2023 11 8.66067e+00 5.06612e+00 94 2023 12 5.24798e+00 5.34891e+00 229 2024 1 6.44661e+00 2.20288e+00 230 2024 2 1.10995e+01 3.34737e+00 117 2024 3 2.58312e+01 4.82851e-01 64 2024 4 nan nan 0