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 3.22986e-01 2.26999e-02 84 2002 8 3.32295e-01 5.99820e-02 48 2002 9 2.69170e-01 8.60353e-02 101 2002 10 2.63455e-01 8.33417e-02 236 2002 11 2.93885e-01 9.18964e-02 155 2002 12 2.52267e-01 1.12548e-01 144 2003 1 2.99509e-01 8.97971e-02 160 2003 2 2.54936e-01 5.07615e-02 132 2003 3 2.47256e-01 5.16596e-02 55 2003 4 2.96168e-01 6.60003e-02 87 2003 5 3.16519e-01 5.05909e-02 64 2003 6 3.41346e-01 2.95724e-02 32 2003 7 3.25321e-01 2.90580e-02 32 2003 8 2.96627e-01 8.85816e-02 42 2003 9 2.66864e-01 8.92423e-02 60 2003 10 3.22132e-01 7.96028e-02 188 2003 11 2.41501e-01 6.07300e-02 130 2003 12 3.43820e-01 1.29318e-01 128 2004 1 2.56414e-01 9.54271e-02 129 2004 2 2.72389e-01 8.41234e-02 132 2004 3 2.68255e-01 4.98271e-02 60 2004 4 1.57928e-01 4.43234e-03 16 2004 5 3.08045e-01 7.89704e-02 64 2004 6 2.84884e-01 6.86274e-02 119 2004 7 2.93423e-01 4.29549e-02 105 2004 8 2.78992e-01 6.90980e-02 58 2004 9 3.29929e-01 4.34229e-02 80 2004 10 3.53866e-01 1.01874e-01 112 2004 11 2.82953e-01 8.82209e-02 115 2004 12 3.09155e-01 9.32736e-02 151 2005 1 2.51324e-01 8.85259e-02 162 2005 2 2.69880e-01 6.97061e-02 156 2005 3 2.09123e-01 7.11146e-02 110 2005 4 2.20154e-01 4.15644e-02 77 2005 5 2.61763e-01 4.07423e-02 48 2005 6 2.19623e-01 2.15311e-02 16 2005 7 3.15055e-01 8.98811e-02 81 2005 8 2.88184e-01 4.21113e-02 36 2005 9 3.95728e-01 1.30453e-01 128 2005 10 2.61910e-01 7.06537e-02 77 2005 11 3.17560e-01 6.90967e-02 161 2005 12 2.76033e-01 7.94522e-02 163 2006 1 2.73553e-01 7.15733e-02 199 2006 2 2.31970e-01 6.57782e-02 184 2006 3 3.21265e-01 9.05151e-02 128 2006 4 2.69189e-01 3.74003e-02 86 2006 5 2.95909e-01 5.87004e-02 91 2006 6 3.14239e-01 8.61649e-02 48 2006 7 3.35397e-01 6.87860e-02 48 2006 8 3.12435e-01 5.96162e-02 96 2006 9 5.47664e-01 2.55090e-01 63 2006 10 3.60141e-01 1.92499e-01 202 2006 11 2.56984e-01 3.36612e-02 96 2006 12 2.64404e-01 8.79131e-02 65 2007 1 2.80426e-01 9.19599e-02 125 2007 2 2.89296e-01 1.91071e-01 73 2007 3 2.33139e-01 4.01708e-02 96 2007 4 2.94621e-01 9.03431e-02 108 2007 5 2.92388e-01 2.41365e-02 48 2007 6 2.75472e-01 6.60196e-02 65 2007 7 4.64403e-01 2.57425e-01 96 2007 8 2.81900e-01 6.91282e-02 86 2007 9 2.69027e-01 7.14909e-02 80 2007 10 3.33810e-01 9.59898e-02 89 2007 11 3.06280e-01 9.45564e-02 220 2007 12 3.63934e-01 2.62675e-01 193 2008 1 2.86682e-01 9.16437e-02 116 2008 2 2.40141e-01 6.90354e-02 120 2008 3 2.56454e-01 7.97550e-02 51 2008 4 2.62537e-01 3.74649e-02 79 2008 5 2.76407e-01 0.00000e+00 1 2008 6 3.22614e-01 7.77546e-02 48 2008 7 3.16075e-01 4.15975e-02 32 2008 8 3.21164e-01 7.39329e-02 66 2008 9 2.82560e-01 9.68816e-02 72 2008 10 3.21680e-01 7.70121e-02 116 2008 11 3.11934e-01 5.88098e-02 217 2008 12 2.71911e-01 8.39250e-02 144 2009 1 2.81882e-01 1.01461e-01 208 2009 2 2.61121e-01 5.90908e-02 118 2009 3 2.66057e-01 7.22020e-02 105 2009 4 2.04993e-01 3.02062e-02 32 2009 5 2.97515e-01 2.36994e-01 87 2009 6 nan nan 0 2009 7 3.69988e-01 3.87961e-03 16 2009 8 3.38356e-01 5.32129e-02 80 2009 9 3.20255e-01 3.79748e-02 32 2009 10 2.74095e-01 5.29593e-02 218 2009 11 3.04103e-01 1.07463e-01 160 2009 12 2.55343e-01 6.13981e-02 46 2010 1 2.61182e-01 7.86195e-02 143 2010 2 2.72216e-01 8.17089e-02 107 2010 3 2.88325e-01 8.69699e-02 137 2010 4 3.13287e-01 6.46359e-02 34 2010 5 3.14346e-01 8.32063e-02 74 2010 6 2.77702e-01 6.32238e-02 127 2010 7 3.69936e-01 5.38838e-02 53 2010 8 3.24310e-01 6.48176e-02 64 2010 9 1.86089e-01 1.33004e-02 16 2010 10 2.84580e-01 6.77438e-02 221 2010 11 2.74039e-01 7.98259e-02 172 2010 12 2.48384e-01 7.67817e-02 240 2011 1 2.17746e-01 5.03064e-02 135 2011 2 2.69428e-01 8.31852e-02 184 2011 3 2.57405e-01 7.95893e-02 200 2011 4 2.74252e-01 7.54830e-02 134 2011 5 2.57029e-01 7.10046e-02 104 2011 6 2.43456e-01 5.57431e-02 84 2011 7 3.18843e-01 7.11134e-02 112 2011 8 3.28145e-01 2.33302e-02 16 2011 9 3.17851e-01 1.53399e-01 108 2011 10 3.18077e-01 5.58673e-02 70 2011 11 3.04840e-01 7.07724e-02 157 2011 12 2.44776e-01 8.16192e-02 175 2012 1 2.51641e-01 1.25805e-01 166 2012 2 2.75902e-01 6.10100e-02 169 2012 3 2.39231e-01 3.10710e-02 85 2012 4 3.13266e-01 7.52817e-02 96 2012 5 3.17446e-01 5.69566e-02 88 2012 6 3.32815e-01 1.87916e-02 48 2012 7 3.74347e-01 9.23622e-02 96 2012 8 3.34488e-01 6.57479e-02 91 2012 9 2.77469e-01 6.66772e-02 80 2012 10 3.09615e-01 7.67875e-02 145 2012 11 3.13397e-01 9.04566e-02 218 2012 12 2.58615e-01 8.19180e-02 120 2013 1 2.31092e-01 7.13026e-02 101 2013 2 2.83182e-01 1.01757e-01 146 2013 3 2.74228e-01 7.29346e-02 108 2013 4 2.62644e-01 1.84126e-02 64 2013 5 3.02440e-01 6.36026e-02 80 2013 6 3.97646e-01 1.33676e-01 48 2013 7 4.01160e-01 6.48505e-02 96 2013 8 3.63995e-01 1.29197e-02 16 2013 9 3.39334e-01 2.85872e-02 29 2013 10 3.11455e-01 1.12045e-01 218 2013 11 3.36424e-01 1.11695e-01 92 2013 12 3.40557e-01 1.17735e-01 100 2014 1 2.67360e-01 7.33587e-02 144 2014 2 2.42805e-01 7.50384e-02 142 2014 3 2.12339e-01 3.57435e-02 190 2014 4 2.56652e-01 5.69220e-02 85 2014 5 2.37185e-01 4.65823e-02 96 2014 6 3.15292e-01 8.37319e-02 109 2014 7 3.08147e-01 6.40771e-02 74 2014 8 3.60008e-01 1.11125e-01 112 2014 9 2.90149e-01 1.07049e-01 68 2014 10 2.60507e-01 1.06869e-01 134 2014 11 2.93449e-01 8.14426e-02 168 2014 12 2.58081e-01 6.20151e-02 187 2015 1 2.46747e-01 8.88908e-02 143 2015 2 2.50299e-01 7.30161e-02 161 2015 3 2.34565e-01 3.35437e-02 154 2015 4 2.66912e-01 3.79239e-02 60 2015 5 2.62868e-01 7.65657e-02 80 2015 6 3.19279e-01 7.79829e-02 83 2015 7 3.33641e-01 5.87916e-02 64 2015 8 3.59727e-01 8.13294e-02 64 2015 9 2.99401e-01 4.38578e-02 61 2015 10 3.28161e-01 1.20102e-02 32 2015 11 3.68764e-01 2.94382e-01 133 2015 12 3.16332e-01 8.83258e-02 71 2016 1 2.86728e-01 4.78621e-02 48 2016 2 2.68533e-01 7.75011e-02 180 2016 3 3.47385e-01 9.45591e-02 104 2016 4 2.87993e-01 6.73279e-02 92 2016 5 2.91594e-01 1.00802e-01 96 2016 6 2.69992e-01 6.17945e-02 80 2016 7 3.76724e-01 7.60636e-02 102 2016 8 3.36182e-01 4.55649e-02 87 2016 9 2.48887e-01 9.45506e-02 97 2016 10 3.35364e-01 7.36756e-02 138 2016 11 3.37031e-01 9.98795e-02 174 2016 12 3.19328e-01 9.19340e-02 142 2017 1 2.63688e-01 8.21132e-02 153 2017 2 2.21018e-01 5.63331e-02 171 2017 3 2.99891e-01 9.65944e-02 183 2017 4 2.71917e-01 4.62746e-02 47 2017 5 2.80318e-01 5.14717e-02 116 2017 6 3.34423e-01 4.84467e-02 53 2017 7 2.92460e-01 8.18711e-02 112 2017 8 4.04830e-01 1.17398e-01 121 2017 9 4.00537e-01 4.16526e-02 50 2017 10 4.44297e-01 1.09387e-01 76 2017 11 3.65324e-01 1.43234e-01 199 2017 12 4.39365e-01 2.28163e-01 346 2018 1 3.55936e-01 1.31935e-01 116 2018 2 2.69760e-01 8.26707e-02 170 2018 3 2.27701e-01 5.28610e-02 152 2018 4 3.90757e-01 2.43163e-01 58 2018 5 2.58737e-01 6.04578e-02 45 2018 6 3.36413e-01 4.40070e-02 64 2018 7 3.54921e-01 7.97006e-02 80 2018 8 3.93544e-01 7.99493e-02 102 2018 9 3.82168e-01 1.28453e-01 94 2018 10 3.21843e-01 9.10624e-02 155 2018 11 3.08435e-01 9.84852e-02 99 2018 12 2.82866e-01 9.37183e-02 149 2019 1 2.26177e-01 5.94552e-02 160 2019 2 2.52271e-01 6.15992e-02 155 2019 3 2.61305e-01 7.46952e-02 130 2019 4 2.31343e-01 4.67751e-02 108 2019 5 3.02716e-01 9.44140e-02 81 2019 6 3.44796e-01 8.34588e-02 80 2019 7 3.44213e-01 6.75375e-02 103 2019 8 3.71482e-01 4.63780e-02 48 2019 9 3.12978e-01 4.91351e-02 96 2019 10 3.14679e-01 1.03505e-01 150 2019 11 2.65491e-01 7.66833e-02 188 2019 12 2.52081e-01 6.27150e-02 56 2020 1 2.81967e-01 6.45829e-02 209 2020 2 2.43872e-01 7.94578e-02 101 2020 3 2.74085e-01 5.78564e-02 115 2020 4 2.83092e-01 5.57148e-02 99 2020 5 2.67214e-01 6.09128e-02 112 2020 6 3.46963e-01 9.96493e-02 32 2020 7 3.11268e-01 9.69300e-02 66 2020 8 2.97127e-01 8.73783e-02 160 2020 9 4.52667e-01 3.72000e-01 44 2020 10 2.99761e-01 7.18733e-02 148 2020 11 2.91678e-01 5.16970e-02 35 2020 12 3.77469e-01 1.36274e-01 198 2021 1 3.31057e-01 1.25143e-01 172 2021 2 2.13505e-01 4.58037e-02 113 2021 3 2.98021e-01 1.94707e-01 208 2021 4 2.52869e-01 5.35212e-02 96 2021 5 2.59421e-01 2.51685e-02 41 2021 6 5.45104e-01 2.43622e-01 28 2021 7 2.75370e-01 6.46736e-02 78 2021 8 2.96887e-01 8.49159e-02 128 2021 9 2.82342e-01 6.13326e-02 80 2021 10 2.96428e-01 8.61537e-02 98 2021 11 2.82415e-01 9.83989e-02 193 2021 12 2.64140e-01 6.13075e-02 256 2022 1 2.89319e-01 9.14015e-02 112 2022 2 3.41820e-01 3.08835e-01 154 2022 3 2.65299e-01 6.07031e-02 48 2022 4 3.51392e-01 1.92405e-02 16 2022 5 2.94184e-01 6.08302e-02 107 2022 6 4.40094e-01 1.67041e-01 58 2022 7 4.02334e-01 8.61710e-02 79 2022 8 2.37388e-01 6.16635e-02 72 2022 9 2.43648e-01 6.12380e-02 96 2022 10 3.09894e-01 6.08129e-02 161 2022 11 2.76472e-01 9.33842e-02 198 2022 12 3.51898e-01 7.28559e-02 171 2023 1 2.69002e-01 1.41208e-01 201 2023 2 2.53251e-01 7.60797e-02 202 2023 3 2.47452e-01 8.74245e-02 102 2023 4 2.92548e-01 8.32079e-02 57 2023 5 3.55689e-01 6.82613e-02 79 2023 6 3.14743e-01 8.21557e-02 59 2023 7 3.63881e-01 2.92425e-02 32 2023 8 3.56142e-01 4.73447e-02 44 2023 9 3.88823e-01 3.14127e-01 95 2023 10 4.12975e-01 1.45878e-01 139 2023 11 3.40067e-01 5.71091e-02 109 2023 12 3.00859e-01 9.89843e-02 57 2024 1 2.75943e-01 1.44087e-01 49 2024 2 2.72207e-01 7.37414e-02 115 2024 3 2.94763e-01 1.59898e-01 99 2024 4 2.33750e-01 2.34585e-02 16