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 3.74335e+00 1.08199e+00 32 2002 8 4.14454e+00 1.47076e+00 78 2002 9 2.42160e+00 1.15700e+00 127 2002 10 2.61590e+00 1.01194e+00 144 2002 11 1.85806e+00 1.00975e+00 175 2002 12 2.32268e+00 4.76273e-01 144 2003 1 1.16734e+00 1.09579e+00 232 2003 2 2.63269e+00 5.90453e-01 128 2003 3 -2.11837e+00 7.88021e-01 4 2003 4 2.80883e+00 1.12648e+00 53 2003 5 2.96753e+00 1.24765e-01 32 2003 6 2.97276e+00 6.37110e-01 64 2003 7 2.62622e+00 9.94460e-01 22 2003 8 1.73936e+00 5.68152e-01 30 2003 9 1.72255e+00 1.27167e+00 106 2003 10 3.31921e+00 7.92160e-01 195 2003 11 2.51503e+00 6.79001e-01 274 2003 12 2.66586e+00 5.12988e-01 178 2004 1 3.24536e+00 6.22781e-01 112 2004 2 1.86436e+00 7.61408e-01 48 2004 3 2.36697e+00 7.36677e-01 144 2004 4 3.36346e+00 6.14888e-01 155 2004 5 3.42115e+00 5.14440e-01 139 2004 6 3.68662e+00 7.38001e-01 71 2004 7 4.11152e+00 2.36267e+00 19 2004 8 3.76116e+00 8.97878e-01 48 2004 9 2.36750e+00 5.29717e-01 117 2004 10 1.08728e+00 9.45196e-01 56 2004 11 1.44652e+00 7.31836e-01 128 2004 12 1.36458e+00 5.92307e-01 106 2005 1 2.18367e+00 1.12644e+00 207 2005 2 2.72802e+00 5.59597e-01 107 2005 3 1.50163e+00 8.68379e-01 128 2005 4 2.29919e-01 9.13138e-01 70 2005 5 2.54398e+00 1.34042e+00 47 2005 6 2.98512e+00 7.20768e-01 80 2005 7 3.11376e+00 1.43257e+00 65 2005 8 nan nan 0 2005 9 2.63684e+00 8.38660e-01 96 2005 10 2.69364e+00 5.39800e-01 265 2005 11 2.88691e+00 5.23429e-01 272 2005 12 2.68861e+00 5.78463e-01 208 2006 1 1.89361e+00 1.35840e+00 137 2006 2 1.59415e+00 8.56162e-01 160 2006 3 2.31559e+00 5.99383e-01 196 2006 4 3.57131e+00 5.79963e-01 156 2006 5 3.66195e+00 3.80427e-01 173 2006 6 3.75329e+00 4.81087e-01 101 2006 7 4.12282e+00 4.50540e-01 111 2006 8 3.72726e+00 3.36063e-01 80 2006 9 3.12900e+00 3.24771e-01 146 2006 10 3.17083e+00 5.94144e-01 231 2006 11 2.95123e+00 7.13156e-01 213 2006 12 3.14218e+00 4.32249e-01 160 2007 1 2.17153e+00 1.02506e+00 64 2007 2 1.43487e+00 1.20026e+00 144 2007 3 3.17621e+00 1.05270e+00 284 2007 4 3.36295e+00 6.41442e-01 165 2007 5 3.67966e+00 3.12565e-01 92 2007 6 3.82446e+00 3.57294e-01 64 2007 7 3.93750e+00 5.59109e-01 95 2007 8 3.28859e+00 2.49664e-01 96 2007 9 3.19677e+00 5.96944e-01 176 2007 10 3.34229e+00 4.03286e-01 124 2007 11 3.61014e+00 3.84792e-01 256 2007 12 3.84504e+00 4.38078e-01 144 2008 1 3.63571e+00 5.32899e-01 176 2008 2 3.32282e+00 1.00168e+00 237 2008 3 9.96782e-01 1.10933e+00 176 2008 4 2.86632e+00 4.38314e-01 129 2008 5 3.11994e+00 3.58833e-01 160 2008 6 3.38009e+00 2.88915e-01 98 2008 7 3.46834e+00 7.64329e-02 14 2008 8 3.54640e+00 9.81984e-02 16 2008 9 8.65551e-01 7.22859e-01 116 2008 10 2.25420e+00 3.77736e-01 245 2008 11 2.56932e+00 7.65094e-01 226 2008 12 1.81081e+00 1.11758e+00 164 2009 1 2.35965e+00 6.71332e-01 174 2009 2 3.16307e+00 8.37486e-01 221 2009 3 3.29063e+00 8.09997e-01 160 2009 4 9.02899e-01 1.00136e+00 70 2009 5 2.04129e+00 6.85960e-01 64 2009 6 2.82151e+00 5.20815e-01 32 2009 7 3.42357e+00 1.34793e-01 80 2009 8 3.38922e+00 3.92286e-01 96 2009 9 3.09258e+00 1.06815e+00 191 2009 10 2.74736e+00 7.83632e-01 163 2009 11 2.67858e+00 5.40810e-01 160 2009 12 -6.73881e-01 9.67566e-01 6 2010 1 3.64502e-01 1.15245e+00 138 2010 2 1.04817e-01 8.43020e-01 130 2010 3 1.11792e+00 1.22217e+00 128 2010 4 2.02669e+00 5.62307e-01 188 2010 5 3.52279e+00 1.79695e+00 70 2010 6 3.30146e+00 4.65463e-01 144 2010 7 3.52084e+00 5.76914e-01 92 2010 8 3.55782e+00 2.12826e-01 32 2010 9 3.17633e+00 4.74581e-01 199 2010 10 3.27697e+00 4.35934e-01 297 2010 11 3.52695e+00 6.24928e-01 240 2010 12 3.16437e+00 6.62248e-01 260 2011 1 3.31467e+00 2.94545e-01 176 2011 2 3.09009e+00 4.52197e-01 135 2011 3 3.18248e+00 5.04431e-01 167 2011 4 3.36721e+00 6.15430e-01 153 2011 5 3.33317e+00 5.81096e-01 144 2011 6 3.22797e+00 3.00401e-01 110 2011 7 3.47384e+00 3.42705e-01 93 2011 8 3.68762e+00 3.05842e-01 122 2011 9 3.39420e+00 2.82790e-01 176 2011 10 3.02991e+00 4.97320e-01 288 2011 11 3.24622e+00 4.53091e-01 190 2011 12 3.70761e+00 4.08194e-01 240 2012 1 3.45795e+00 4.38979e-01 241 2012 2 3.03722e+00 3.98743e-01 64 2012 3 3.36968e+00 4.46022e-01 192 2012 4 3.65361e+00 3.12679e-01 256 2012 5 3.63199e+00 1.99965e-01 112 2012 6 2.81381e+00 7.89297e-02 16 2012 7 2.76091e+00 8.90811e-01 80 2012 8 2.56480e+00 4.06627e-01 10 2012 9 1.83942e+00 1.06825e+00 54 2012 10 1.60963e+00 1.00191e+00 176 2012 11 3.27112e+00 7.57582e-01 224 2012 12 3.16432e+00 7.73223e-01 152 2013 1 3.67950e+00 6.50810e-01 128 2013 2 2.84047e+00 6.60677e-01 117 2013 3 -2.37367e-01 1.20797e+00 187 2013 4 1.17604e+00 4.81649e-01 30 2013 5 3.16573e+00 5.86436e-01 64 2013 6 3.15731e+00 9.79253e-01 88 2013 7 nan nan 0 2013 8 7.29643e-01 2.98301e-01 3 2013 9 1.61160e+00 6.41214e-01 176 2013 10 2.29644e+00 7.60452e-01 160 2013 11 2.70616e+00 5.77606e-01 127 2013 12 3.24973e+00 5.13617e-01 104 2014 1 3.13027e-01 1.58115e+00 51 2014 2 1.67366e+00 6.00974e-01 104 2014 3 1.91039e+00 1.16288e+00 80 2014 4 -8.76253e-01 1.53998e+00 23 2014 5 nan nan 0 2014 6 4.10924e+00 7.77951e-01 47 2014 7 4.25326e+00 4.42617e-01 61 2014 8 3.88289e+00 3.38902e-01 112 2014 9 3.91915e+00 6.97475e-01 141 2014 10 3.63420e+00 7.11770e-01 318 2014 11 2.98274e+00 5.37457e-01 208 2014 12 3.02543e+00 1.04694e+00 187 2015 1 1.56508e+00 6.48517e-01 146 2015 2 6.79186e-01 6.99514e-01 96 2015 3 2.36251e+00 1.10901e+00 84 2015 4 2.80019e+00 9.93357e-01 40 2015 5 3.11084e+00 9.55157e-01 136 2015 6 3.81411e+00 8.51250e-01 111 2015 7 3.85594e+00 3.37860e-01 60 2015 8 3.76456e+00 4.07851e-01 94 2015 9 3.81653e+00 9.31974e-01 128 2015 10 2.91576e+00 4.43409e-01 208 2015 11 2.86200e+00 8.48318e-01 125 2015 12 3.48729e+00 5.61048e-01 80 2016 1 1.46949e+00 1.20548e+00 133 2016 2 5.54535e-01 1.00892e+00 270 2016 3 2.10944e+00 6.72637e-01 224 2016 4 -1.73762e+00 3.36842e+00 17 2016 5 3.85354e+00 1.27875e+00 64 2016 6 3.85600e+00 8.53101e-01 123 2016 7 3.42894e+00 4.45873e-01 153 2016 8 2.18681e+00 1.15081e+00 114 2016 9 2.68848e+00 1.42281e+00 78 2016 10 2.65350e+00 7.08249e-01 240 2016 11 3.59808e+00 7.81649e-01 172 2016 12 4.00677e+00 4.34259e-01 161 2017 1 2.70064e+00 1.38379e+00 144 2017 2 1.91753e+00 7.60165e-01 199 2017 3 2.86850e+00 8.58656e-01 196 2017 4 3.00230e+00 7.97694e-01 152 2017 5 3.28189e+00 4.14734e-01 112 2017 6 3.69387e+00 9.44483e-01 24 2017 7 2.44889e+00 6.85692e-01 32 2017 8 3.32749e+00 1.09185e+00 63 2017 9 2.67408e+00 6.09636e-01 172 2017 10 2.84945e+00 5.21533e-01 197 2017 11 3.52562e+00 3.81147e-01 288 2017 12 3.37227e+00 3.14234e+00 176 2018 1 3.45791e+00 6.11413e-01 236 2018 2 3.59641e+00 4.00217e-01 96 2018 3 3.09887e+00 3.77003e-01 160 2018 4 2.78522e+00 1.25341e+00 118 2018 5 3.43669e+00 7.12636e-01 83 2018 6 2.91144e+00 5.78626e-01 41 2018 7 3.97249e+00 7.80045e-01 80 2018 8 1.60109e+00 5.26969e-01 48 2018 9 2.20214e+00 7.24316e-01 157 2018 10 1.80306e+00 1.05957e+00 321 2018 11 1.90895e+00 1.01122e+00 80 2018 12 8.28987e-01 1.29096e+00 58 2019 1 -3.33425e-01 1.06365e+00 88 2019 2 2.31997e+00 8.39593e-01 26 2019 3 1.42339e+00 1.04395e+00 121 2019 4 2.26791e+00 3.69693e-01 80 2019 5 3.49886e+00 6.00766e-01 175 2019 6 3.93991e+00 4.80416e-01 48 2019 7 3.82498e+00 3.20601e-01 85 2019 8 3.74831e+00 8.99531e-01 160 2019 9 3.48963e+00 1.06560e+00 232 2019 10 3.07822e+00 3.99682e-01 144 2019 11 3.85185e+00 1.10702e+00 156 2019 12 3.66158e+00 2.92548e-01 96 2020 1 3.29113e+00 1.04539e+00 152 2020 2 3.11575e+00 8.58906e-01 144 2020 3 3.19146e+00 6.55318e-01 92 2020 4 3.37972e+00 3.62826e-01 80 2020 5 3.46178e+00 2.29750e-01 121 2020 6 2.24427e+00 8.46819e-01 37 2020 7 3.70183e+00 5.54635e-01 48 2020 8 3.69088e+00 3.80912e-01 78 2020 9 1.91241e+00 1.60974e+00 48 2020 10 1.97969e+00 1.12655e+00 175 2020 11 2.34688e+00 1.93043e+00 229 2020 12 2.76989e+00 5.23323e-01 138 2021 1 1.54784e+00 1.14195e+00 64 2021 2 7.54968e-01 1.27987e+00 110 2021 3 1.60801e+00 5.74579e-01 112 2021 4 2.61240e+00 4.19587e-01 105 2021 5 3.14185e+00 3.69009e-01 141 2021 6 4.06058e+00 9.79939e-01 32 2021 7 3.49867e+00 4.75637e-01 32 2021 8 1.69324e+00 9.26386e-01 112 2021 9 1.97158e+00 2.02577e+00 68 2021 10 1.94402e+00 8.70074e-01 68 2021 11 1.76091e+00 7.46880e-01 219 2021 12 2.88444e+00 5.04990e-01 84 2022 1 2.00552e+00 1.16534e+00 149 2022 2 2.52695e+00 6.22580e-01 160 2022 3 1.82181e+00 1.21252e+00 182 2022 4 1.10017e+00 2.64856e-01 48 2022 5 3.11917e+00 6.85386e-01 96 2022 6 3.99093e+00 6.41866e-01 128 2022 7 3.76928e+00 1.36224e+00 49 2022 8 3.40190e+00 5.27901e-01 51 2022 9 2.57327e+00 7.57541e-01 130 2022 10 3.02340e+00 5.72145e-01 295 2022 11 3.62495e+00 6.81532e-01 124 2022 12 3.29986e+00 1.11690e+00 224 2023 1 3.29466e+00 6.39436e-01 208 2023 2 2.22473e+00 5.48460e-01 160 2023 3 2.44992e+00 3.86694e-01 160 2023 4 3.45056e+00 4.53825e-01 96 2023 5 3.59492e+00 4.71775e-01 96 2023 6 2.85621e+00 7.81191e-01 112 2023 7 3.17768e+00 5.67129e-01 56 2023 8 3.79268e+00 7.27842e-01 133 2023 9 2.24273e+00 9.57619e-01 106 2023 10 2.75206e+00 1.29461e+00 258 2023 11 3.34490e+00 1.01179e+00 169 2023 12 2.31514e+00 4.02266e-01 16 2024 1 2.03878e+00 9.23248e-01 16 2024 2 2.04870e+00 1.48730e+00 112 2024 3 2.25005e+00 7.04986e-01 98 2024 4 nan nan 0