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 2.35534e+01 3.40528e+00 96 2002 8 1.36571e+01 1.93438e+00 80 2002 9 6.41975e+00 3.35852e+00 144 2002 10 9.62605e+00 5.17760e+00 176 2002 11 6.28861e+00 3.37885e+00 256 2002 12 7.01866e+00 4.12834e+00 192 2003 1 7.20192e+00 3.66980e+00 272 2003 2 1.08882e+01 4.30298e+00 144 2003 3 7.74929e+00 7.19107e+00 80 2003 4 5.32548e+00 3.17357e+00 205 2003 5 4.08920e+00 3.88471e+00 32 2003 6 9.29239e+00 4.84779e+00 96 2003 7 6.57110e+00 6.63227e+00 41 2003 8 5.72881e+00 3.35767e+00 91 2003 9 6.23807e+00 3.17512e+00 160 2003 10 7.68125e+00 4.41760e+00 208 2003 11 7.75082e+00 5.31560e+00 239 2003 12 4.93414e+00 2.25345e+00 192 2004 1 1.60394e+01 3.61802e+00 160 2004 2 1.37358e+01 3.41072e+00 80 2004 3 2.02464e+01 7.66000e+00 237 2004 4 1.53128e+01 7.91440e+00 145 2004 5 2.00446e+01 5.59632e+00 192 2004 6 2.53528e+01 4.45863e+00 80 2004 7 1.04147e+01 5.94422e+00 94 2004 8 1.53219e+01 4.06460e+00 128 2004 9 5.96685e+00 5.37018e+00 112 2004 10 6.83351e+00 5.50912e+00 135 2004 11 4.19396e+00 3.40567e+00 178 2004 12 4.25894e+00 2.13514e+00 128 2005 1 1.11736e+01 5.22115e+00 150 2005 2 1.72792e+01 5.47323e+00 134 2005 3 8.21200e+00 5.02671e+00 204 2005 4 3.72175e+00 5.31800e+00 141 2005 5 1.00008e+01 5.41739e+00 208 2005 6 1.18650e+01 7.82588e+00 118 2005 7 7.45445e+00 7.41409e+00 112 2005 8 2.15634e+00 2.94032e+00 75 2005 9 1.64653e-01 1.69924e-01 117 2005 10 2.82764e+00 1.96373e+00 228 2005 11 8.75215e+00 2.72208e+00 248 2005 12 1.37157e+01 5.50349e+00 224 2006 1 8.57674e+00 4.73525e+00 208 2006 2 1.04870e+01 6.24748e+00 176 2006 3 2.17881e+01 4.14164e+00 272 2006 4 2.49466e+01 2.66394e+00 194 2006 5 2.66963e+01 3.47052e+00 176 2006 6 2.82533e+01 4.42703e+00 142 2006 7 2.20182e+01 3.58487e+00 144 2006 8 2.13268e+01 5.47800e+00 160 2006 9 1.59506e+01 3.72895e+00 165 2006 10 1.49370e+01 4.49996e+00 224 2006 11 1.10155e+01 4.25377e+00 225 2006 12 1.34977e+01 4.29871e+00 107 2007 1 1.91618e+01 4.12269e+00 124 2007 2 1.62578e+01 5.97506e+00 180 2007 3 1.97454e+01 6.64200e+00 352 2007 4 1.86159e+01 6.76639e+00 196 2007 5 2.10155e+01 3.14139e+00 160 2007 6 2.20355e+01 2.08099e+00 128 2007 7 1.26697e+01 4.75029e+00 80 2007 8 7.31625e+00 3.70167e+00 112 2007 9 1.08365e+01 5.62756e+00 129 2007 10 1.64490e+01 1.90875e+00 133 2007 11 1.54230e+01 2.48989e+00 272 2007 12 1.92870e+01 5.32247e+00 176 2008 1 1.50126e+01 6.50479e+00 224 2008 2 2.10695e+01 5.29013e+00 267 2008 3 1.05645e+01 8.35679e+00 208 2008 4 1.65391e+01 4.60782e+00 189 2008 5 1.57066e+01 1.49650e+00 128 2008 6 2.06972e+01 6.57479e+00 144 2008 7 2.31444e+01 2.65111e+00 80 2008 8 1.77605e+01 4.34508e+00 96 2008 9 9.61022e+00 3.40226e+00 144 2008 10 1.14468e+01 4.63914e+00 272 2008 11 9.49911e+00 4.36998e+00 256 2008 12 6.65579e+00 5.55966e+00 176 2009 1 9.36544e+00 6.41991e+00 144 2009 2 1.96861e+01 3.84434e+00 224 2009 3 2.43953e+01 6.80342e+00 224 2009 4 1.35695e+01 6.47040e+00 157 2009 5 1.10401e+01 5.78420e+00 110 2009 6 1.82757e+01 4.42989e+00 63 2009 7 2.33794e+01 3.39361e+00 112 2009 8 1.39349e+01 4.30493e+00 69 2009 9 1.62164e+01 5.82190e+00 131 2009 10 7.85966e+00 3.51460e+00 240 2009 11 7.83837e+00 3.80725e+00 150 2009 12 8.35336e+00 2.13443e+00 48 2010 1 2.79592e+00 2.12427e+00 180 2010 2 2.45773e+00 2.35080e+00 211 2010 3 3.04898e+00 1.82133e+00 213 2010 4 8.46073e+00 6.18086e+00 217 2010 5 5.67837e+00 3.34899e+00 102 2010 6 1.37601e+01 4.71614e+00 158 2010 7 2.44641e+01 4.45510e+00 80 2010 8 2.17801e+01 4.22860e+00 48 2010 9 1.62678e+01 3.26681e+00 219 2010 10 1.87902e+01 3.19265e+00 320 2010 11 1.62103e+01 3.60628e+00 298 2010 12 1.24002e+01 3.44092e+00 241 2011 1 8.87919e+00 2.96866e+00 211 2011 2 1.73999e+01 2.40739e+00 160 2011 3 2.04842e+01 2.75124e+00 216 2011 4 2.34172e+01 2.96124e+00 224 2011 5 1.89357e+01 3.61686e+00 188 2011 6 1.44657e+01 4.37623e+00 160 2011 7 1.66209e+01 5.02323e+00 128 2011 8 2.13571e+01 5.69527e+00 160 2011 9 1.25072e+01 3.68924e+00 160 2011 10 1.46368e+01 5.27464e+00 285 2011 11 1.46088e+01 2.95063e+00 240 2011 12 1.31609e+01 4.26246e+00 272 2012 1 1.26790e+01 6.40760e+00 256 2012 2 1.03560e+01 5.88468e+00 68 2012 3 2.89336e+01 6.67736e+00 208 2012 4 2.23545e+01 6.04521e+00 223 2012 5 1.80760e+01 1.56978e+00 160 2012 6 1.23674e+01 8.26103e+00 112 2012 7 5.90581e+00 5.44871e+00 96 2012 8 8.99248e+00 3.10120e+00 96 2012 9 3.73483e+00 2.52713e+00 132 2012 10 7.22582e+00 5.19545e+00 192 2012 11 7.49497e+00 2.55503e+00 256 2012 12 9.45458e+00 4.05432e+00 128 2013 1 1.58834e+01 9.43042e+00 144 2013 2 1.49114e+01 5.11157e+00 176 2013 3 5.68116e+00 3.70291e+00 227 2013 4 1.48452e+01 4.77108e+00 116 2013 5 1.59560e+01 4.94906e+00 112 2013 6 1.64816e+01 6.20654e+00 88 2013 7 8.31905e+00 3.13959e+00 43 2013 8 1.35941e+01 4.40003e+00 59 2013 9 3.96624e+00 3.14689e+00 155 2013 10 7.11086e+00 5.58378e+00 176 2013 11 1.28136e+01 3.74394e+00 152 2013 12 1.40653e+01 3.12291e+00 208 2014 1 6.65234e+00 5.63665e+00 128 2014 2 1.83760e+01 2.55955e+00 188 2014 3 1.12525e+01 7.31536e+00 179 2014 4 6.85364e+00 4.40843e+00 144 2014 5 6.55167e+00 6.89869e+00 128 2014 6 1.03157e+01 5.32954e+00 125 2014 7 1.69750e+01 5.32149e+00 142 2014 8 2.60814e+01 3.96253e+00 192 2014 9 2.18140e+01 4.53737e+00 119 2014 10 6.33308e+00 4.43846e+00 320 2014 11 1.07506e+01 3.49801e+00 256 2014 12 1.47848e+01 4.75531e+00 214 2015 1 1.10051e+01 7.11938e+00 176 2015 2 9.64472e+00 3.27038e+00 189 2015 3 1.55659e+01 3.41327e+00 80 2015 4 1.45397e+01 9.04357e-01 32 2015 5 1.89595e+01 6.79804e+00 224 2015 6 1.59101e+01 4.17958e+00 125 2015 7 1.75104e+01 3.14865e+00 80 2015 8 1.05290e+01 3.62547e+00 96 2015 9 1.20171e+01 4.41646e+00 112 2015 10 1.14876e+01 3.43048e+00 196 2015 11 1.44155e+01 5.41230e+00 176 2015 12 1.78646e+01 2.28908e+00 96 2016 1 8.68446e+00 7.18763e+00 160 2016 2 3.22092e+00 2.57058e+00 272 2016 3 9.67306e+00 3.75897e+00 149 2016 4 8.81418e+00 5.84560e+00 111 2016 5 1.39271e+01 7.22535e+00 160 2016 6 2.08553e+01 6.85341e+00 144 2016 7 2.10182e+01 2.68087e+00 133 2016 8 1.80030e+01 7.96017e+00 174 2016 9 1.11052e+01 8.21173e+00 181 2016 10 1.74890e+01 6.41758e+00 295 2016 11 1.81378e+01 3.64662e+00 208 2016 12 1.24996e+01 1.69662e+00 208 2017 1 1.11133e+01 6.90596e+00 160 2017 2 1.24884e+01 4.61362e+00 274 2017 3 1.69693e+01 2.91728e+00 240 2017 4 2.00542e+01 3.57695e+00 144 2017 5 1.28845e+01 4.43954e+00 112 2017 6 1.14117e+01 2.06914e+00 46 2017 7 1.05702e+01 4.73518e+00 133 2017 8 1.00309e+01 3.76848e+00 84 2017 9 1.08850e+01 4.67866e+00 208 2017 10 1.04964e+01 4.21539e+00 216 2017 11 1.52584e+01 4.35866e+00 284 2017 12 1.57943e+01 3.88346e+00 176 2018 1 1.48864e+01 7.53295e+00 223 2018 2 2.62327e+01 2.99884e+00 144 2018 3 2.33692e+01 5.69799e+00 208 2018 4 2.00878e+01 2.48865e+00 144 2018 5 1.84088e+01 5.13610e+00 139 2018 6 1.30615e+01 4.51031e+00 96 2018 7 1.43821e+01 5.55326e+00 97 2018 8 9.32954e+00 6.22674e+00 76 2018 9 1.22857e+01 6.68993e+00 171 2018 10 5.47123e+00 3.72257e+00 292 2018 11 4.97575e+00 3.01757e+00 96 2018 12 2.98716e+00 2.86640e+00 144 2019 1 3.44328e-01 5.19117e-01 208 2019 2 3.93200e+00 3.27763e+00 77 2019 3 4.86703e+00 4.31963e+00 228 2019 4 9.31595e+00 4.66133e+00 112 2019 5 1.28150e+01 4.86010e+00 236 2019 6 1.64708e+01 4.60036e+00 97 2019 7 2.05520e+01 4.76309e+00 118 2019 8 1.68602e+01 4.07002e+00 162 2019 9 1.36926e+01 3.67975e+00 240 2019 10 1.11001e+01 4.02604e+00 190 2019 11 1.52143e+01 4.26585e+00 176 2019 12 1.25251e+01 5.05533e+00 144 2020 1 1.72723e+01 2.65781e+00 176 2020 2 9.28881e+00 6.72351e+00 144 2020 3 1.30801e+01 8.14090e+00 158 2020 4 1.50021e+01 5.43087e+00 144 2020 5 1.45663e+01 2.82155e+00 144 2020 6 1.67225e+01 4.14587e+00 128 2020 7 2.58816e+01 4.48673e+00 59 2020 8 2.02151e+01 1.90703e+00 64 2020 9 5.84003e+00 2.93239e+00 128 2020 10 2.42220e+00 2.73775e+00 186 2020 11 1.41542e+01 5.74546e+00 272 2020 12 6.52964e+00 4.52227e+00 192 2021 1 4.08123e+00 4.55126e+00 112 2021 2 1.23345e+01 6.64629e+00 128 2021 3 2.08900e+01 5.84964e+00 112 2021 4 9.08867e+00 5.13947e+00 191 2021 5 1.11214e+01 3.43963e+00 160 2021 6 1.70327e+01 3.02416e+00 64 2021 7 9.53424e+00 4.40451e+00 91 2021 8 5.02526e+00 6.48323e+00 104 2021 9 2.02714e+00 2.78780e+00 107 2021 10 1.75221e+00 2.73527e+00 171 2021 11 3.85582e+00 3.28156e+00 240 2021 12 5.99999e+00 3.14602e+00 160 2022 1 3.68620e+00 2.38920e+00 192 2022 2 1.23205e+01 5.21185e+00 192 2022 3 1.22195e+01 7.25805e+00 207 2022 4 1.52643e+01 3.24169e+00 80 2022 5 1.17555e+01 3.90321e+00 128 2022 6 1.99384e+01 4.64849e+00 144 2022 7 1.89432e+01 1.77826e+00 76 2022 8 2.07202e+01 1.18901e+01 116 2022 9 1.50872e+01 4.78005e+00 192 2022 10 1.51527e+01 2.80300e+00 320 2022 11 1.11272e+01 4.25957e+00 150 2022 12 1.65787e+01 6.18034e+00 240 2023 1 1.95728e+01 4.50173e+00 240 2023 2 1.24796e+01 8.26392e+00 156 2023 3 1.54476e+01 4.70589e+00 176 2023 4 2.41722e+01 3.02777e+00 112 2023 5 1.97070e+01 8.17414e+00 118 2023 6 1.99258e+01 2.34700e+00 141 2023 7 2.33415e+01 3.61430e+00 100 2023 8 2.21160e+01 4.40537e+00 160 2023 9 8.40013e+00 3.28870e+00 154 2023 10 1.01371e+01 3.65006e+00 233 2023 11 1.45564e+01 3.50051e+00 224 2023 12 4.29933e+00 4.27857e+00 60 2024 1 5.17954e+00 5.71717e+00 140 2024 2 2.71389e+00 2.51918e+00 144 2024 3 8.82411e+00 4.89902e+00 149 2024 4 nan nan 0