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 6.23928e+01 5.52170e-02 22 2002 8 5.71706e+01 7.45423e-01 44 2002 9 4.87126e+01 2.83430e+00 46 2002 10 4.11457e+01 3.22679e+00 60 2002 11 3.16666e+01 1.45002e+00 101 2002 12 2.77491e+01 2.51681e-01 133 2003 1 3.05376e+01 1.53882e+00 176 2003 2 3.71241e+01 2.04897e+00 154 2003 3 4.96052e+01 1.01524e+00 64 2003 4 5.53746e+01 2.56184e+00 64 2003 5 nan nan 0 2003 6 6.27871e+01 1.22881e-02 16 2003 7 6.05103e+01 6.36385e-03 14 2003 8 5.71806e+01 1.21640e+00 37 2003 9 5.04556e+01 2.48862e+00 64 2003 10 4.08803e+01 3.09780e+00 160 2003 11 3.22775e+01 2.09712e+00 215 2003 12 2.79844e+01 5.20876e-01 162 2004 1 3.08185e+01 1.43802e+00 88 2004 2 3.91699e+01 2.66606e+00 64 2004 3 4.84398e+01 1.75359e+00 160 2004 4 5.41946e+01 9.33184e-01 46 2004 5 6.07477e+01 7.73363e-01 57 2004 6 6.29441e+01 2.86898e-03 16 2004 7 6.20904e+01 5.35102e-01 19 2004 8 5.86683e+01 1.55613e+00 32 2004 9 5.11081e+01 2.41051e+00 97 2004 10 4.05248e+01 2.00832e+00 80 2004 11 3.26904e+01 2.21383e+00 129 2004 12 2.76573e+01 1.56641e-01 126 2005 1 3.01577e+01 1.81531e+00 115 2005 2 3.75870e+01 1.41717e+00 94 2005 3 4.65465e+01 2.65662e+00 134 2005 4 5.59171e+01 7.45509e-01 32 2005 5 6.11291e+01 4.88649e-01 34 2005 6 6.28607e+01 2.24002e-01 48 2005 7 6.15700e+01 1.20301e-01 41 2005 8 nan nan 0 2005 9 4.84145e+01 3.09864e+00 48 2005 10 4.02022e+01 2.26163e+00 202 2005 11 3.16764e+01 2.15862e+00 133 2005 12 2.75808e+01 1.49856e-01 129 2006 1 3.06388e+01 1.86016e+00 114 2006 2 3.79430e+01 2.70972e+00 152 2006 3 4.77040e+01 3.06676e+00 198 2006 4 5.59196e+01 9.59792e-01 54 2006 5 6.11607e+01 9.30115e-01 58 2006 6 6.31119e+01 1.30926e-01 40 2006 7 6.20329e+01 3.00588e-01 23 2006 8 5.75102e+01 2.29781e+00 28 2006 9 4.95157e+01 2.89919e+00 117 2006 10 4.11240e+01 2.71095e+00 160 2006 11 3.22862e+01 2.24333e+00 212 2006 12 2.82214e+01 5.76326e-01 143 2007 1 3.04674e+01 1.91339e+00 80 2007 2 3.76739e+01 2.00060e+00 106 2007 3 4.76398e+01 2.44601e+00 131 2007 4 5.57729e+01 1.17821e+00 63 2007 5 6.04439e+01 2.28743e-03 16 2007 6 6.29230e+01 5.19495e-03 4 2007 7 6.25233e+01 4.31001e-02 32 2007 8 5.69319e+01 3.70514e-03 16 2007 9 5.05369e+01 2.62745e+00 66 2007 10 4.12070e+01 2.94803e+00 111 2007 11 3.19786e+01 1.73237e+00 141 2007 12 2.79152e+01 3.66226e-01 93 2008 1 3.02026e+01 1.84402e+00 81 2008 2 3.77836e+01 3.12192e+00 108 2008 3 4.83674e+01 2.16489e+00 125 2008 4 5.68162e+01 2.57731e-01 32 2008 5 6.16294e+01 5.17541e-01 22 2008 6 6.31719e+01 2.06051e-01 51 2008 7 6.16696e+01 1.16677e+00 30 2008 8 5.69632e+01 1.56317e+00 71 2008 9 5.06488e+01 2.77833e+00 80 2008 10 3.93486e+01 2.85618e+00 171 2008 11 3.23195e+01 2.07688e+00 247 2008 12 2.81493e+01 6.50833e-01 84 2009 1 3.06850e+01 1.67192e+00 114 2009 2 3.72893e+01 2.54698e+00 128 2009 3 4.55634e+01 2.30809e+00 40 2009 4 5.66702e+01 2.33218e+00 31 2009 5 6.26089e+01 2.54604e-03 16 2009 6 6.30870e+01 1.00136e-03 16 2009 7 nan nan 0 2009 8 nan nan 0 2009 9 4.76675e+01 2.65692e-01 33 2009 10 4.09466e+01 1.87466e+00 93 2009 11 3.33920e+01 1.43409e+00 116 2009 12 2.83752e+01 5.56008e-01 48 2010 1 2.98043e+01 1.56484e+00 124 2010 2 3.99145e+01 1.11031e+00 97 2010 3 4.57244e+01 2.65921e+00 96 2010 4 5.60475e+01 1.81178e+00 64 2010 5 6.11826e+01 8.40037e-01 72 2010 6 6.29863e+01 8.43749e-02 61 2010 7 6.27626e+01 7.77903e-02 25 2010 8 nan nan 0 2010 9 4.94258e+01 2.50247e+00 120 2010 10 4.17969e+01 2.76340e+00 237 2010 11 3.35138e+01 1.78061e+00 121 2010 12 2.80635e+01 4.81051e-01 208 2011 1 3.03004e+01 1.53657e+00 201 2011 2 3.90909e+01 1.89994e+00 157 2011 3 4.85300e+01 1.44971e+00 123 2011 4 5.54503e+01 2.37406e+00 59 2011 5 6.21599e+01 3.89397e-01 69 2011 6 6.29843e+01 1.36602e-01 48 2011 7 6.16215e+01 7.50065e-01 58 2011 8 5.65260e+01 1.31726e+00 77 2011 9 5.05647e+01 2.06039e+00 49 2011 10 4.13687e+01 3.09369e+00 204 2011 11 3.28026e+01 2.55822e+00 130 2011 12 2.78623e+01 5.53766e-01 96 2012 1 3.02219e+01 1.70604e+00 163 2012 2 3.73953e+01 1.14103e-01 33 2012 3 4.76425e+01 2.68356e+00 48 2012 4 5.74239e+01 1.13625e+00 57 2012 5 6.10247e+01 9.95704e-01 35 2012 6 6.31538e+01 4.13032e-02 25 2012 7 6.20809e+01 7.39893e-03 25 2012 8 5.71898e+01 7.84136e-01 26 2012 9 5.16900e+01 2.17963e+00 71 2012 10 3.94863e+01 2.07314e+00 150 2012 11 3.23419e+01 1.98716e+00 215 2012 12 2.78634e+01 3.33340e-01 112 2013 1 3.14044e+01 1.77360e+00 82 2013 2 3.74667e+01 2.70381e+00 103 2013 3 4.89243e+01 2.77614e+00 132 2013 4 5.59552e+01 1.42517e+00 47 2013 5 6.21577e+01 8.90163e-01 19 2013 6 6.28755e+01 4.71690e-03 16 2013 7 nan nan 0 2013 8 5.59335e+01 6.95531e-01 34 2013 9 5.07284e+01 2.73755e+00 84 2013 10 4.09434e+01 2.88096e+00 124 2013 11 3.23752e+01 2.27442e+00 175 2013 12 2.77770e+01 4.57374e-01 96 2014 1 3.10983e+01 1.63809e+00 113 2014 2 3.78137e+01 2.71985e+00 105 2014 3 4.76521e+01 3.05377e+00 96 2014 4 5.62777e+01 1.47987e+00 47 2014 5 6.17996e+01 2.04806e-01 10 2014 6 6.33083e+01 7.41242e-02 27 2014 7 6.28129e+01 4.89612e-01 34 2014 8 5.68949e+01 3.35760e-03 7 2014 9 5.04577e+01 1.88412e+00 60 2014 10 4.02806e+01 2.62388e+00 207 2014 11 3.25490e+01 2.36317e+00 208 2014 12 2.78869e+01 3.93098e-01 129 2015 1 3.14557e+01 1.60476e+00 180 2015 2 3.68926e+01 1.70973e+00 160 2015 3 4.87036e+01 2.16412e+00 49 2015 4 5.68000e+01 1.76506e+00 5 2015 5 6.14818e+01 1.08759e+00 34 2015 6 6.30296e+01 1.61587e-03 16 2015 7 6.21681e+01 7.07588e-01 44 2015 8 5.69500e+01 1.99925e+00 80 2015 9 5.10081e+01 2.23649e+00 88 2015 10 4.10606e+01 1.74698e+00 148 2015 11 3.14361e+01 1.63159e+00 61 2015 12 2.78936e+01 3.49273e-01 62 2016 1 3.16290e+01 9.80382e-01 80 2016 2 3.84309e+01 2.42831e+00 181 2016 3 4.64074e+01 2.54640e+00 108 2016 4 5.50689e+01 1.70275e+00 44 2016 5 6.16353e+01 9.55581e-01 19 2016 6 6.32269e+01 6.97053e-02 68 2016 7 6.21249e+01 5.80556e-01 56 2016 8 5.68443e+01 7.22366e-01 56 2016 9 4.83716e+01 1.87022e+00 91 2016 10 4.06978e+01 2.68677e+00 230 2016 11 3.23545e+01 1.87950e+00 179 2016 12 2.79520e+01 5.46684e-01 95 2017 1 3.09991e+01 1.97133e+00 124 2017 2 3.85411e+01 2.82771e+00 165 2017 3 4.77944e+01 2.71818e+00 110 2017 4 5.43138e+01 7.72958e-01 74 2017 5 6.14992e+01 1.01230e+00 81 2017 6 6.31617e+01 3.66154e-02 21 2017 7 6.19855e+01 5.64177e-01 44 2017 8 5.78096e+01 3.44973e-01 20 2017 9 4.87547e+01 2.39500e+00 96 2017 10 3.97422e+01 2.71938e+00 121 2017 11 3.27873e+01 2.00987e+00 142 2017 12 2.79198e+01 3.96402e-01 143 2018 1 3.05455e+01 1.79792e+00 187 2018 2 3.76444e+01 2.26335e+00 45 2018 3 4.56963e+01 1.83425e+00 84 2018 4 5.71233e+01 1.63033e+00 45 2018 5 6.12152e+01 7.68129e-01 46 2018 6 6.29307e+01 3.73291e-03 16 2018 7 6.22534e+01 8.38229e-02 21 2018 8 5.79101e+01 1.68823e+00 45 2018 9 5.08510e+01 2.40608e+00 103 2018 10 4.07856e+01 3.53780e+00 149 2018 11 3.23476e+01 1.08736e+00 69 2018 12 2.79897e+01 4.53217e-01 71 2019 1 3.12569e+01 1.53682e+00 120 2019 2 3.90616e+01 2.63309e+00 40 2019 3 4.78673e+01 3.13490e+00 61 2019 4 5.76467e+01 9.15536e-01 100 2019 5 6.15252e+01 9.27311e-01 98 2019 6 6.32780e+01 0.00000e+00 1 2019 7 6.09156e+01 1.61500e-03 16 2019 8 5.71268e+01 2.39535e+00 33 2019 9 4.87861e+01 2.74644e+00 129 2019 10 4.15745e+01 2.65719e+00 112 2019 11 3.31602e+01 2.17233e+00 96 2019 12 2.78906e+01 4.50158e-01 80 2020 1 3.00852e+01 1.69722e+00 69 2020 2 3.84718e+01 3.05530e+00 112 2020 3 4.78306e+01 2.63025e+00 80 2020 4 5.62988e+01 2.15953e+00 50 2020 5 6.09384e+01 1.06953e+00 56 2020 6 6.32468e+01 1.29500e-01 44 2020 7 6.17162e+01 3.49965e-01 48 2020 8 5.87504e+01 5.99361e-01 48 2020 9 5.09412e+01 2.98951e+00 22 2020 10 3.93102e+01 2.63163e+00 133 2020 11 3.23131e+01 1.91030e+00 158 2020 12 2.79130e+01 4.10122e-01 160 2021 1 3.06299e+01 2.04472e+00 95 2021 2 3.90428e+01 2.58159e+00 115 2021 3 4.58549e+01 1.50820e+00 93 2021 4 5.59181e+01 2.24169e+00 112 2021 5 6.24419e+01 2.47250e-01 31 2021 6 6.33053e+01 1.88459e-03 6 2021 7 6.17514e+01 3.79774e-01 18 2021 8 5.73807e+01 1.70198e-01 32 2021 9 5.28597e+01 8.66106e-01 30 2021 10 4.14890e+01 4.34781e-01 41 2021 11 3.18034e+01 1.60742e+00 191 2021 12 2.78718e+01 5.70757e-01 64 2022 1 3.13737e+01 1.76837e+00 163 2022 2 3.84028e+01 2.76387e+00 114 2022 3 4.76584e+01 2.97825e+00 150 2022 4 5.83642e+01 5.61966e-01 30 2022 5 6.15337e+01 9.92977e-01 33 2022 6 6.29659e+01 8.00358e-02 45 2022 7 6.20278e+01 5.53262e-01 66 2022 8 5.67604e+01 2.29711e+00 67 2022 9 4.90712e+01 2.30029e+00 170 2022 10 4.12011e+01 2.75782e+00 233 2022 11 3.31428e+01 2.33661e+00 121 2022 12 2.79103e+01 4.96913e-01 115 2023 1 3.01163e+01 1.80378e+00 182 2023 2 3.72422e+01 2.64518e+00 147 2023 3 4.63087e+01 1.53575e+00 36 2023 4 5.72000e+01 2.24128e-01 32 2023 5 6.08493e+01 1.06062e+00 48 2023 6 6.30501e+01 1.43990e-01 42 2023 7 6.15100e+01 8.12503e-01 80 2023 8 5.70065e+01 1.86618e+00 84 2023 9 4.92817e+01 1.96458e+00 63 2023 10 3.89771e+01 2.13185e+00 157 2023 11 3.21848e+01 2.21069e+00 142 2023 12 2.75303e+01 2.13462e-01 80 2024 1 3.06234e+01 1.76718e+00 65 2024 2 3.87151e+01 2.16289e+00 62 2024 3 5.08392e+01 1.53841e+00 29 2024 4 5.41500e+01 0.00000e+00 1