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 4.87509e-01 9.45465e-02 64 2002 8 6.67627e-01 3.15755e-01 48 2002 9 4.58781e-01 9.79034e-02 112 2002 10 5.04398e-01 1.60054e-01 209 2002 11 4.51876e-01 1.01528e-01 102 2002 12 6.09287e-01 2.31609e-01 147 2003 1 6.95358e-01 1.23148e-01 180 2003 2 6.69427e-01 1.59977e-01 84 2003 3 6.78352e-01 3.51309e-01 80 2003 4 6.42996e-01 3.73330e-01 128 2003 5 4.87295e-01 1.07653e-01 64 2003 6 5.60116e-01 5.42120e-02 25 2003 7 6.02704e-01 5.79547e-02 18 2003 8 4.10022e-01 9.10819e-02 49 2003 9 6.00885e-01 3.16246e-01 48 2003 10 5.06013e-01 1.03689e-01 213 2003 11 6.67836e-01 2.37282e-01 167 2003 12 6.61225e-01 1.25362e-01 129 2004 1 8.28528e-01 2.08288e-01 134 2004 2 8.03682e-01 2.48743e-01 149 2004 3 8.09147e-01 2.23097e-01 95 2004 4 9.09089e-01 3.58779e-01 138 2004 5 5.32046e-01 1.11452e-01 110 2004 6 4.57799e-01 7.87691e-02 116 2004 7 5.37960e-01 1.46892e-01 112 2004 8 4.80093e-01 7.44769e-02 50 2004 9 4.65277e-01 7.87771e-02 95 2004 10 5.39432e-01 2.28618e-01 160 2004 11 5.77803e-01 1.32270e-01 135 2004 12 7.35909e-01 4.45580e-01 128 2005 1 6.97484e-01 3.08186e-01 169 2005 2 7.05911e-01 1.89702e-01 104 2005 3 5.20165e-01 7.52001e-02 96 2005 4 5.06526e-01 8.22871e-02 96 2005 5 5.57019e-01 2.27635e-01 118 2005 6 nan nan 0 2005 7 4.68743e-01 6.12389e-02 67 2005 8 5.04451e-01 8.86068e-02 69 2005 9 5.13767e-01 8.42605e-02 155 2005 10 5.78848e-01 1.74958e-01 89 2005 11 6.24164e-01 1.30361e-01 144 2005 12 5.72816e-01 6.67758e-02 217 2006 1 7.71342e-01 3.14104e-01 164 2006 2 6.46812e-01 1.06884e-01 206 2006 3 6.57603e-01 1.15108e-01 150 2006 4 7.14574e-01 5.38894e-01 94 2006 5 4.72988e-01 6.42669e-02 112 2006 6 4.33556e-01 6.80347e-02 64 2006 7 5.39634e-01 1.70352e-01 64 2006 8 4.45332e-01 2.80511e-02 80 2006 9 5.47179e-01 8.94698e-02 96 2006 10 5.15870e-01 1.19711e-01 144 2006 11 5.62546e-01 9.44842e-02 96 2006 12 5.66958e-01 1.05530e-01 78 2007 1 5.30538e-01 8.77986e-02 163 2007 2 6.17889e-01 1.08779e-01 84 2007 3 9.13933e-01 5.15110e-01 96 2007 4 6.69584e-01 1.89933e-01 144 2007 5 8.57986e-01 8.78726e-01 96 2007 6 4.89375e-01 7.16012e-02 96 2007 7 4.30394e-01 1.12920e-01 96 2007 8 4.62503e-01 4.71383e-02 70 2007 9 5.47441e-01 8.21631e-02 65 2007 10 5.55517e-01 1.16581e-01 85 2007 11 4.95041e-01 1.45104e-01 220 2007 12 5.09841e-01 7.79965e-02 208 2008 1 6.68307e-01 1.18056e-01 77 2008 2 5.59138e-01 1.29612e-01 144 2008 3 7.08792e-01 3.12182e-01 98 2008 4 5.63920e-01 1.29268e-01 85 2008 5 6.22559e-01 1.74942e-01 37 2008 6 4.84574e-01 7.84476e-02 73 2008 7 4.97609e-01 1.46079e-01 55 2008 8 5.13258e-01 8.87588e-02 112 2008 9 4.46067e-01 7.50073e-02 93 2008 10 5.29250e-01 7.36944e-02 121 2008 11 5.03426e-01 1.35472e-01 208 2008 12 5.14137e-01 7.26869e-02 160 2009 1 5.82823e-01 2.31085e-01 224 2009 2 5.92337e-01 1.53014e-01 188 2009 3 7.59939e-01 3.22368e-01 126 2009 4 6.40635e-01 2.11109e-01 32 2009 5 5.06869e-01 1.01727e-01 113 2009 6 4.78768e-01 4.27367e-02 47 2009 7 5.58401e-01 2.31245e-02 32 2009 8 5.06276e-01 1.31448e-01 61 2009 9 5.28250e-01 1.94739e-01 58 2009 10 5.15216e-01 1.34542e-01 195 2009 11 5.04470e-01 1.12122e-01 192 2009 12 5.38174e-01 1.60391e-01 97 2010 1 8.31300e-01 5.01516e-01 146 2010 2 7.50540e-01 2.08106e-01 102 2010 3 5.96961e-01 1.38351e-01 144 2010 4 6.77648e-01 2.49325e-01 79 2010 5 4.56181e-01 8.75803e-02 80 2010 6 5.17157e-01 1.29992e-01 130 2010 7 4.58878e-01 6.37858e-02 73 2010 8 4.82741e-01 1.06512e-01 94 2010 9 5.20784e-01 7.41391e-02 64 2010 10 4.61881e-01 8.96543e-02 205 2010 11 5.71721e-01 2.65942e-01 183 2010 12 6.92812e-01 2.78352e-01 264 2011 1 6.45852e-01 1.25601e-01 172 2011 2 6.70515e-01 1.85341e-01 183 2011 3 7.16086e-01 2.11740e-01 266 2011 4 6.26446e-01 2.38247e-01 114 2011 5 5.16270e-01 1.45949e-01 116 2011 6 4.92580e-01 8.14069e-02 95 2011 7 5.07038e-01 1.38189e-01 117 2011 8 nan nan 0 2011 9 4.28732e-01 8.17704e-02 84 2011 10 5.01807e-01 4.86069e-02 108 2011 11 4.60152e-01 7.85394e-02 181 2011 12 5.19263e-01 8.80622e-02 192 2012 1 5.30901e-01 6.06477e-02 159 2012 2 5.26400e-01 7.65863e-02 168 2012 3 6.79197e-01 2.76479e-01 95 2012 4 6.42525e-01 2.84316e-01 105 2012 5 6.04903e-01 2.91284e-01 96 2012 6 4.89703e-01 3.84020e-02 64 2012 7 5.54905e-01 8.51785e-02 96 2012 8 4.92459e-01 8.13543e-02 80 2012 9 4.84020e-01 7.52716e-02 109 2012 10 5.51369e-01 1.14944e-01 176 2012 11 5.19649e-01 9.12684e-02 234 2012 12 5.55518e-01 1.53270e-01 106 2013 1 5.19555e-01 9.47620e-02 146 2013 2 7.07788e-01 5.53016e-01 154 2013 3 5.87566e-01 1.15860e-01 113 2013 4 4.53627e-01 9.22249e-02 67 2013 5 5.41216e-01 1.03793e-01 80 2013 6 5.20639e-01 6.05423e-02 7 2013 7 5.00313e-01 1.02466e-01 96 2013 8 4.91789e-01 5.20018e-02 54 2013 9 4.87071e-01 9.99036e-02 66 2013 10 5.41650e-01 1.36908e-01 227 2013 11 6.13968e-01 1.64886e-01 71 2013 12 4.67016e-01 9.92743e-02 112 2014 1 5.53896e-01 1.40162e-01 147 2014 2 4.88894e-01 1.07735e-01 172 2014 3 5.24667e-01 1.45478e-01 224 2014 4 4.82687e-01 1.02358e-01 114 2014 5 4.12078e-01 6.27522e-02 64 2014 6 4.95256e-01 6.70679e-02 107 2014 7 5.37926e-01 9.87428e-02 58 2014 8 5.48387e-01 1.18723e-01 96 2014 9 4.92439e-01 1.25276e-01 46 2014 10 5.31798e-01 1.41309e-01 190 2014 11 5.12670e-01 1.17505e-01 176 2014 12 4.64301e-01 9.36589e-02 146 2015 1 4.75444e-01 1.05362e-01 156 2015 2 5.30123e-01 1.41574e-01 207 2015 3 4.91120e-01 8.74147e-02 225 2015 4 5.42107e-01 7.92946e-02 70 2015 5 4.83670e-01 1.73936e-01 98 2015 6 4.77535e-01 9.29779e-02 80 2015 7 5.36676e-01 8.35879e-02 89 2015 8 5.01304e-01 1.14151e-01 48 2015 9 5.93177e-01 6.13877e-02 54 2015 10 5.42323e-01 1.00142e-01 64 2015 11 5.03216e-01 1.14713e-01 146 2015 12 5.37975e-01 7.89593e-02 65 2016 1 9.48928e-01 5.60115e-01 48 2016 2 6.42359e-01 1.92972e-01 172 2016 3 5.49546e-01 1.44566e-01 76 2016 4 6.44237e-01 2.59890e-01 73 2016 5 4.51063e-01 7.27313e-02 96 2016 6 4.77294e-01 5.05890e-02 94 2016 7 5.67772e-01 1.13526e-01 80 2016 8 5.29944e-01 6.85147e-02 96 2016 9 5.45167e-01 1.48634e-01 128 2016 10 4.68888e-01 6.58878e-02 112 2016 11 5.17770e-01 1.53827e-01 198 2016 12 5.18426e-01 1.32887e-01 130 2017 1 6.30911e-01 2.49905e-01 184 2017 2 4.81461e-01 3.85598e-02 143 2017 3 5.24307e-01 1.05665e-01 215 2017 4 5.56770e-01 1.31919e-01 62 2017 5 5.20065e-01 1.05093e-01 128 2017 6 5.85566e-01 1.23799e-01 48 2017 7 5.62610e-01 1.91003e-01 103 2017 8 4.53125e-01 8.58787e-02 104 2017 9 5.87457e-01 2.53918e-01 89 2017 10 5.23044e-01 9.98620e-02 113 2017 11 5.36870e-01 1.42991e-01 225 2017 12 5.55653e-01 1.47560e-01 318 2018 1 8.32014e-01 3.48371e-01 144 2018 2 6.13140e-01 9.51830e-02 225 2018 3 5.79542e-01 6.71175e-02 179 2018 4 5.43450e-01 1.06559e-01 114 2018 5 4.79181e-01 2.79043e-02 35 2018 6 4.13691e-01 3.34088e-02 32 2018 7 4.71153e-01 4.24315e-02 79 2018 8 5.78634e-01 1.35982e-01 128 2018 9 5.24043e-01 7.49192e-02 104 2018 10 4.46784e-01 8.27720e-02 186 2018 11 4.31324e-01 7.73336e-02 96 2018 12 5.91980e-01 1.81831e-01 160 2019 1 5.78941e-01 1.31254e-01 178 2019 2 6.11501e-01 1.17430e-01 173 2019 3 5.54847e-01 8.53233e-02 155 2019 4 4.71660e-01 6.97529e-02 112 2019 5 5.18578e-01 8.44350e-02 126 2019 6 5.69818e-01 9.08131e-02 48 2019 7 5.21014e-01 1.19837e-01 80 2019 8 5.10621e-01 7.56574e-02 64 2019 9 4.85718e-01 9.34662e-02 98 2019 10 5.14736e-01 9.39807e-02 208 2019 11 5.54795e-01 1.24718e-01 240 2019 12 5.64154e-01 9.80279e-02 138 2020 1 7.69120e-01 2.13536e-01 207 2020 2 7.82062e-01 1.97612e-01 126 2020 3 7.10284e-01 1.48950e-01 136 2020 4 8.19100e-01 3.22001e-01 108 2020 5 5.19187e-01 1.03433e-01 65 2020 6 5.82968e-01 9.09237e-02 32 2020 7 5.51830e-01 2.03142e-01 96 2020 8 6.27848e-01 3.93079e-01 128 2020 9 5.33976e-01 1.08045e-01 93 2020 10 5.56362e-01 1.65937e-01 148 2020 11 6.47982e-01 1.00349e-01 64 2020 12 9.36643e-01 4.83786e-01 173 2021 1 7.18287e-01 1.27056e-01 202 2021 2 6.65329e-01 1.06060e-01 96 2021 3 7.80477e-01 2.13603e-01 160 2021 4 7.38278e-01 8.62297e-02 96 2021 5 8.74220e-01 3.91015e-01 111 2021 6 5.05576e-01 4.30885e-02 16 2021 7 5.27501e-01 9.77140e-02 120 2021 8 5.38906e-01 1.25958e-01 106 2021 9 4.21138e-01 7.91491e-02 36 2021 10 5.68143e-01 2.61243e-01 118 2021 11 7.42052e-01 2.66392e-01 152 2021 12 5.83748e-01 9.61087e-02 245 2022 1 7.14743e-01 1.93936e-01 95 2022 2 7.79327e-01 2.60094e-01 205 2022 3 8.17820e-01 1.82666e-01 58 2022 4 nan nan 0 2022 5 6.93259e-01 3.39545e-01 122 2022 6 4.75590e-01 7.98154e-02 64 2022 7 6.30630e-01 3.22311e-01 118 2022 8 4.90130e-01 1.14683e-01 120 2022 9 5.25076e-01 1.13732e-01 131 2022 10 5.93847e-01 3.84085e-01 176 2022 11 5.84791e-01 2.60805e-01 210 2022 12 6.98226e-01 2.52419e-01 170 2023 1 6.70549e-01 2.58946e-01 244 2023 2 6.14609e-01 8.67108e-02 193 2023 3 7.84439e-01 2.22194e-01 142 2023 4 5.11016e-01 9.64548e-02 64 2023 5 5.12479e-01 7.50127e-02 75 2023 6 5.28232e-01 7.79826e-02 79 2023 7 5.67921e-01 1.20144e-01 32 2023 8 5.05454e-01 1.15794e-01 64 2023 9 5.53188e-01 1.10063e-01 50 2023 10 5.53443e-01 1.90036e-01 115 2023 11 5.99770e-01 1.00137e-01 112 2023 12 6.28349e-01 1.74248e-01 72 2024 1 1.35043e+00 4.50825e-01 32 2024 2 6.93397e-01 1.40634e-01 125 2024 3 6.53551e-01 1.29628e-01 127 2024 4 nan nan 0