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 3.93741e+00 8.22711e-01 32 2002 8 2.41803e+00 4.75094e-01 56 2002 9 3.60536e+00 1.28050e+00 79 2002 10 3.18362e+00 3.45743e-01 76 2002 11 3.29362e+00 1.37355e+00 228 2002 12 3.10559e+00 1.22302e+00 149 2003 1 2.32437e+00 8.23179e-01 223 2003 2 3.08426e+00 7.39681e-01 108 2003 3 4.44856e+00 1.50466e+00 66 2003 4 3.34173e+00 1.06635e+00 134 2003 5 2.51022e+00 6.22052e-01 39 2003 6 2.74682e+00 6.59995e-01 43 2003 7 2.26747e+00 5.46670e-01 40 2003 8 2.48619e+00 3.53577e-01 17 2003 9 3.54551e+00 1.21477e+00 49 2003 10 2.43943e+00 8.25344e-01 155 2003 11 3.54524e+00 7.44935e-01 206 2003 12 2.40469e+00 8.21242e-01 138 2004 1 1.58558e+00 5.05843e-01 117 2004 2 2.31336e+00 6.72435e-01 57 2004 3 2.93495e+00 1.09402e+00 167 2004 4 3.60746e+00 4.42069e-01 90 2004 5 3.41817e+00 3.50615e-01 108 2004 6 3.20981e+00 4.33311e-01 27 2004 7 2.85658e+00 3.97703e-01 52 2004 8 2.59366e+00 3.93814e-01 39 2004 9 3.35192e+00 8.02958e-01 59 2004 10 3.15346e+00 8.22104e-01 89 2004 11 3.15804e+00 1.34684e+00 127 2004 12 2.66772e+00 5.61868e-01 108 2005 1 2.34220e+00 1.20739e+00 129 2005 2 2.69559e+00 7.95215e-01 131 2005 3 3.62852e+00 1.49335e+00 164 2005 4 5.76995e+00 1.88264e+00 27 2005 5 2.71681e+00 7.71636e-01 81 2005 6 2.65962e+00 3.40184e-01 34 2005 7 3.28355e+00 7.02623e-01 91 2005 8 3.58650e+00 7.84345e-01 61 2005 9 1.45050e+00 6.42990e-01 42 2005 10 2.06826e+00 9.12479e-01 206 2005 11 2.07354e+00 8.09906e-01 185 2005 12 2.25262e+00 6.30307e-01 144 2006 1 3.48049e+00 1.42483e+00 109 2006 2 3.55598e+00 1.36739e+00 179 2006 3 3.56773e+00 8.89587e-01 194 2006 4 3.62627e+00 1.08186e+00 86 2006 5 3.25961e+00 5.60287e-01 111 2006 6 2.32457e+00 1.79055e-01 12 2006 7 2.63268e+00 2.44507e-01 48 2006 8 2.84616e+00 5.55615e-01 64 2006 9 3.33969e+00 1.01162e+00 121 2006 10 2.62805e+00 8.28362e-01 191 2006 11 2.90063e+00 7.65677e-01 181 2006 12 3.70092e+00 9.15632e-01 98 2007 1 2.30526e+00 6.23020e-01 91 2007 2 1.96639e+00 6.91192e-01 179 2007 3 3.20735e+00 9.66882e-01 233 2007 4 2.99086e+00 5.75535e-01 152 2007 5 4.19272e+00 8.61345e-01 60 2007 6 3.31190e+00 1.08931e+00 26 2007 7 4.59742e+00 1.06288e+00 79 2007 8 3.69780e+00 1.26357e+00 48 2007 9 4.39028e+00 8.78573e-01 69 2007 10 3.39134e+00 5.46070e-01 96 2007 11 3.73250e+00 5.80154e-01 207 2007 12 3.43914e+00 1.25467e+00 81 2008 1 3.67327e+00 1.74753e+00 159 2008 2 2.94653e+00 6.56886e-01 210 2008 3 4.70101e+00 1.32709e+00 125 2008 4 3.82471e+00 1.49348e+00 66 2008 5 3.82194e+00 5.54316e-01 110 2008 6 3.89153e+00 5.73040e-01 35 2008 7 3.06924e+00 6.28618e-01 29 2008 8 4.90906e+00 6.69601e-01 7 2008 9 2.41601e+00 8.25551e-01 124 2008 10 3.50033e+00 1.05889e+00 213 2008 11 2.70199e+00 1.09300e+00 242 2008 12 3.06216e+00 8.56845e-01 174 2009 1 2.97746e+00 1.04379e+00 177 2009 2 2.79564e+00 5.54324e-01 196 2009 3 3.57573e+00 9.34822e-01 126 2009 4 3.87429e+00 1.39053e+00 42 2009 5 3.23159e+00 5.09872e-01 49 2009 6 nan nan 0 2009 7 3.44101e+00 3.79415e-01 24 2009 8 3.18797e+00 1.26518e+00 49 2009 9 2.55702e+00 5.89749e-01 68 2009 10 2.82400e+00 8.74919e-01 173 2009 11 2.65715e+00 1.03624e+00 124 2009 12 5.94217e+00 2.31775e+00 20 2010 1 4.25067e+00 1.07253e+00 69 2010 2 4.24152e+00 1.27297e+00 51 2010 3 4.45612e+00 1.35775e+00 132 2010 4 4.42967e+00 1.35506e+00 126 2010 5 3.48300e+00 1.55973e+00 58 2010 6 3.16677e+00 3.67428e-01 90 2010 7 2.36082e+00 1.77188e-01 16 2010 8 3.90331e+00 4.13974e-01 20 2010 9 3.56052e+00 9.90115e-01 178 2010 10 4.04421e+00 9.88350e-01 231 2010 11 3.80764e+00 9.94237e-01 247 2010 12 3.49906e+00 1.55563e+00 165 2011 1 2.86643e+00 7.10759e-01 165 2011 2 2.77331e+00 3.88825e-01 148 2011 3 3.56089e+00 1.52216e+00 157 2011 4 3.26296e+00 6.88014e-01 115 2011 5 3.14541e+00 4.97084e-01 96 2011 6 4.08921e+00 4.98239e-01 62 2011 7 3.81642e+00 6.63662e-01 62 2011 8 4.06426e+00 3.89158e-01 48 2011 9 3.69813e+00 1.17764e+00 94 2011 10 4.63728e+00 1.06784e+00 241 2011 11 5.43277e+00 1.29350e+00 157 2011 12 3.55651e+00 1.25038e+00 190 2012 1 3.89304e+00 8.15135e-01 200 2012 2 4.13702e+00 1.26349e+00 57 2012 3 3.88393e+00 1.66335e+00 149 2012 4 2.86553e+00 3.83868e-01 151 2012 5 4.14569e+00 8.30310e-01 97 2012 6 2.25666e+00 5.57312e-01 30 2012 7 2.49259e+00 7.41686e-01 69 2012 8 3.04857e+00 9.14474e-01 39 2012 9 2.00674e+00 6.34250e-01 76 2012 10 2.74330e+00 9.07433e-01 175 2012 11 1.84352e+00 3.58180e-01 184 2012 12 1.92810e+00 8.47154e-01 96 2013 1 4.00321e+00 6.78561e-01 108 2013 2 4.05969e+00 1.08244e+00 144 2013 3 3.81363e+00 1.21177e+00 81 2013 4 3.56173e+00 9.58366e-01 48 2013 5 2.56518e+00 2.36213e-01 32 2013 6 3.80795e+00 4.56639e-01 32 2013 7 3.38762e+00 1.92652e-01 16 2013 8 3.73774e+00 7.78501e-01 34 2013 9 2.46603e+00 7.70514e-01 138 2013 10 2.08881e+00 7.17214e-01 164 2013 11 2.88833e+00 1.58283e+00 103 2013 12 1.89014e+00 5.34595e-01 135 2014 1 3.23251e+00 1.27153e+00 84 2014 2 1.75474e+00 6.23363e-01 141 2014 3 2.20200e+00 6.46570e-01 147 2014 4 3.98051e+00 1.91779e+00 78 2014 5 2.79565e+00 6.33493e-01 93 2014 6 2.77476e+00 6.46273e-01 42 2014 7 2.73898e+00 3.99773e-01 47 2014 8 2.91770e+00 7.24168e-01 64 2014 9 2.08552e+00 6.06519e-01 98 2014 10 2.19356e+00 5.92302e-01 296 2014 11 2.80006e+00 7.83454e-01 198 2014 12 1.97754e+00 7.21078e-01 169 2015 1 2.42030e+00 1.48313e+00 140 2015 2 2.32130e+00 7.37125e-01 158 2015 3 2.34832e+00 4.65861e-01 63 2015 4 3.54633e+00 1.01531e+00 48 2015 5 2.83811e+00 6.61825e-01 91 2015 6 2.67673e+00 3.90564e-01 36 2015 7 3.43049e+00 2.27809e-01 48 2015 8 4.03675e+00 4.24393e-01 37 2015 9 2.93073e+00 1.16705e+00 87 2015 10 4.00787e+00 1.34248e+00 179 2015 11 2.11788e+00 1.09832e+00 135 2015 12 1.87408e+00 5.33748e-01 108 2016 1 3.76706e+00 1.41342e+00 43 2016 2 4.31572e+00 1.34229e+00 208 2016 3 3.96801e+00 1.25682e+00 121 2016 4 3.68062e+00 8.86340e-01 48 2016 5 2.48442e+00 3.40986e-01 89 2016 6 3.26923e+00 6.91201e-01 98 2016 7 2.37697e+00 4.65360e-01 126 2016 8 2.60930e+00 6.68007e-01 106 2016 9 2.83385e+00 1.45516e+00 98 2016 10 3.39690e+00 8.91306e-01 230 2016 11 3.28301e+00 1.30062e+00 193 2016 12 2.08610e+00 6.33632e-01 124 2017 1 3.40994e+00 1.06453e+00 128 2017 2 3.73737e+00 1.25266e+00 185 2017 3 3.79057e+00 1.31783e+00 194 2017 4 2.82961e+00 6.46492e-01 117 2017 5 3.41506e+00 7.04456e-01 57 2017 6 2.95699e+00 8.17483e-01 41 2017 7 2.84708e+00 8.00175e-01 49 2017 8 3.15882e+00 6.43509e-01 34 2017 9 2.29583e+00 9.52095e-01 105 2017 10 3.66918e+00 1.10695e+00 192 2017 11 2.61625e+00 7.22922e-01 288 2017 12 2.26694e+00 6.56817e-01 101 2018 1 2.72302e+00 1.10169e+00 200 2018 2 1.74182e+00 3.37185e-01 80 2018 3 3.00960e+00 1.05854e+00 195 2018 4 2.97558e+00 8.13918e-01 125 2018 5 3.25048e+00 5.90861e-01 49 2018 6 2.31161e+00 2.47751e-01 32 2018 7 2.83919e+00 1.08349e+00 60 2018 8 2.47654e+00 2.03202e-01 32 2018 9 1.94116e+00 7.14232e-01 159 2018 10 2.75797e+00 1.40404e+00 267 2018 11 2.26451e+00 6.52021e-01 96 2018 12 2.77805e+00 9.68324e-01 64 2019 1 4.13950e+00 1.17006e+00 66 2019 2 3.71218e+00 1.16898e+00 51 2019 3 2.93677e+00 8.69162e-01 188 2019 4 3.99258e+00 7.21578e-01 110 2019 5 3.08827e+00 7.59015e-01 114 2019 6 3.00659e+00 6.50709e-01 85 2019 7 2.36616e+00 3.57079e-01 37 2019 8 2.99411e+00 6.17056e-01 64 2019 9 2.85824e+00 7.73056e-01 159 2019 10 3.68379e+00 1.08980e+00 118 2019 11 3.71694e+00 9.66659e-01 148 2019 12 5.07361e+00 8.70487e-01 60 2020 1 2.64967e+00 8.12541e-01 132 2020 2 3.74259e+00 1.79971e+00 64 2020 3 5.26870e+00 1.87743e+00 93 2020 4 4.32612e+00 1.49402e+00 92 2020 5 3.24871e+00 6.93225e-01 80 2020 6 2.09719e+00 7.59257e-01 62 2020 7 2.34220e+00 3.40720e-01 29 2020 8 3.15594e+00 5.25292e-01 48 2020 9 2.44192e+00 9.12444e-01 44 2020 10 3.68534e+00 1.30563e+00 96 2020 11 3.14748e+00 1.40116e+00 214 2020 12 1.91516e+00 6.97264e-01 215 2021 1 2.23438e+00 5.06227e-01 64 2021 2 3.49879e+00 7.43875e-01 71 2021 3 3.54371e+00 8.62103e-01 122 2021 4 2.79614e+00 6.64097e-01 141 2021 5 2.57568e+00 8.78281e-01 132 2021 6 3.03654e+00 4.50957e-01 29 2021 7 2.28403e+00 9.20552e-01 36 2021 8 2.59581e+00 1.29739e+00 76 2021 9 2.10824e+00 6.07317e-01 79 2021 10 1.59416e+00 6.42934e-01 48 2021 11 2.07713e+00 8.92518e-01 243 2021 12 2.04421e+00 5.09791e-01 101 2022 1 2.79578e+00 7.60635e-01 116 2022 2 2.73650e+00 4.66381e-01 128 2022 3 3.49672e+00 9.72210e-01 182 2022 4 4.69639e+00 8.97000e-01 20 2022 5 3.00420e+00 6.15265e-01 32 2022 6 2.62973e+00 6.77718e-01 96 2022 7 2.65219e+00 8.80582e-01 82 2022 8 2.46471e+00 9.56311e-01 81 2022 9 2.09721e+00 8.05885e-01 99 2022 10 3.63871e+00 1.05462e+00 256 2022 11 2.98454e+00 1.07034e+00 156 2022 12 2.23711e+00 1.13551e+00 204 2023 1 2.02444e+00 5.34829e-01 185 2023 2 3.01448e+00 8.54879e-01 119 2023 3 3.33446e+00 5.91416e-01 118 2023 4 2.97048e+00 7.23852e-01 72 2023 5 4.13239e+00 1.23852e+00 48 2023 6 3.39667e+00 6.79365e-01 66 2023 7 3.78633e+00 5.51848e-01 32 2023 8 3.93237e+00 6.80125e-01 53 2023 9 3.37045e+00 5.57757e-01 129 2023 10 3.23081e+00 9.74127e-01 232 2023 11 3.50191e+00 1.55022e+00 131 2023 12 1.98320e+00 6.04715e-01 64 2024 1 1.55543e+00 4.37587e-01 81 2024 2 3.64984e+00 2.23289e+00 128 2024 3 3.41198e+00 1.08697e+00 64 2024 4 nan nan 0