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 1.82773e+00 1.05815e-01 16 2002 8 1.25082e+00 2.68483e-01 36 2002 9 2.92960e+00 1.51047e+00 61 2002 10 1.78347e+00 6.44625e-01 30 2002 11 1.27060e+00 3.76343e-01 68 2002 12 2.40933e+00 1.09463e+00 68 2003 1 1.57331e+00 4.37267e-01 165 2003 2 1.53930e+00 4.36613e-01 103 2003 3 nan nan 0 2003 4 1.56048e+00 1.41034e-01 52 2003 5 1.03740e+00 7.27983e-02 11 2003 6 1.52519e+00 1.18673e-01 16 2003 7 nan nan 0 2003 8 1.01945e+00 8.96652e-02 16 2003 9 1.67487e+00 4.04668e-01 79 2003 10 8.97680e-01 2.88076e-01 172 2003 11 1.27063e+00 4.86021e-01 163 2003 12 1.28938e+00 3.51515e-01 130 2004 1 1.48363e+00 5.16328e-01 69 2004 2 1.92358e+00 3.73423e-01 65 2004 3 1.43840e+00 5.05125e-01 117 2004 4 1.13718e+00 1.98452e-01 48 2004 5 1.38044e+00 2.78267e-01 48 2004 6 nan nan 0 2004 7 1.28527e+00 9.14621e-02 28 2004 8 9.12860e-01 5.87149e-02 16 2004 9 1.72005e+00 8.31223e-01 88 2004 10 1.29298e+00 5.18298e-01 72 2004 11 1.64186e+00 4.10819e-01 69 2004 12 1.74616e+00 4.36642e-01 96 2005 1 1.66192e+00 2.80117e-01 68 2005 2 1.74677e+00 5.03598e-01 80 2005 3 2.39087e+00 1.01661e+00 121 2005 4 nan nan 0 2005 5 nan nan 0 2005 6 2.41282e+00 5.07494e-01 32 2005 7 2.16296e+00 1.24761e+00 41 2005 8 nan nan 0 2005 9 1.29118e+00 1.73848e-01 31 2005 10 1.33895e+00 7.43009e-01 164 2005 11 1.85756e+00 9.34984e-01 150 2005 12 1.11517e+00 4.21175e-01 65 2006 1 1.99452e+00 3.46379e-01 77 2006 2 2.72796e+00 9.06192e-01 138 2006 3 1.96868e+00 5.20302e-01 160 2006 4 2.10665e+00 6.05579e-01 54 2006 5 1.85899e+00 3.10095e-01 112 2006 6 1.46615e+00 1.16522e-01 27 2006 7 1.27037e+00 2.54808e-01 24 2006 8 1.82956e+00 2.30523e-01 25 2006 9 1.72116e+00 5.37578e-01 93 2006 10 1.90992e+00 5.87687e-01 146 2006 11 1.66587e+00 6.05004e-01 161 2006 12 1.96396e+00 9.33694e-01 110 2007 1 1.57304e+00 3.37851e-01 66 2007 2 1.48918e+00 8.05719e-01 61 2007 3 1.38400e+00 3.10147e-01 112 2007 4 1.30322e+00 4.32343e-01 80 2007 5 1.30349e+00 1.87619e-01 32 2007 6 3.27011e+00 1.20755e-01 16 2007 7 1.60833e+00 1.83919e-01 20 2007 8 1.39762e+00 1.91779e-01 48 2007 9 9.60389e-01 5.10303e-01 25 2007 10 1.33027e+00 5.46666e-01 84 2007 11 1.47912e+00 1.03334e+00 124 2007 12 2.44481e+00 1.46545e+00 46 2008 1 1.22828e+00 4.71163e-01 64 2008 2 1.71313e+00 3.89493e-01 52 2008 3 2.47163e+00 7.31077e-01 106 2008 4 1.10105e+00 6.76345e-02 16 2008 5 1.71231e+00 1.58944e-01 18 2008 6 8.90472e-01 1.12853e-01 48 2008 7 1.46009e+00 6.85714e-02 16 2008 8 9.45597e-01 4.59460e-01 46 2008 9 8.89179e-01 2.95772e-01 68 2008 10 1.38403e+00 9.43576e-01 162 2008 11 1.63672e+00 9.21251e-01 205 2008 12 1.62321e+00 7.40354e-01 94 2009 1 1.57300e+00 9.96791e-01 85 2009 2 1.86190e+00 8.08234e-01 108 2009 3 2.12761e+00 1.19823e+00 48 2009 4 2.25496e+00 3.78310e-01 6 2009 5 1.29737e+00 1.26122e-01 5 2009 6 1.81195e+00 4.56687e-01 30 2009 7 nan nan 0 2009 8 1.23975e+00 2.78796e-01 16 2009 9 nan nan 0 2009 10 1.08657e+00 3.24914e-01 50 2009 11 8.76560e-01 1.93991e-01 44 2009 12 1.58311e+00 9.64237e-02 6 2010 1 1.97432e+00 5.88762e-01 72 2010 2 2.28120e+00 3.51410e-01 72 2010 3 2.71481e+00 1.32230e+00 74 2010 4 1.37916e+00 2.73446e-01 78 2010 5 1.17160e+00 2.97568e-01 36 2010 6 1.53191e+00 2.38274e-01 72 2010 7 1.31802e+00 4.42728e-01 25 2010 8 nan nan 0 2010 9 9.99256e-01 3.05607e-01 84 2010 10 1.41511e+00 5.41477e-01 214 2010 11 1.34422e+00 3.76260e-01 100 2010 12 2.27564e+00 1.00844e+00 160 2011 1 1.55773e+00 4.33687e-01 179 2011 2 1.73684e+00 3.57329e-01 136 2011 3 1.90965e+00 7.64081e-01 112 2011 4 2.18299e+00 5.80475e-01 78 2011 5 1.74149e+00 3.49346e-01 86 2011 6 2.38128e+00 5.60781e-01 60 2011 7 1.40145e+00 3.94716e-01 64 2011 8 1.46291e+00 2.53186e-01 49 2011 9 2.24543e+00 1.09830e+00 61 2011 10 1.43912e+00 5.28638e-01 157 2011 11 1.60454e+00 4.09996e-01 118 2011 12 9.95202e-01 2.68162e-01 96 2012 1 1.44423e+00 4.28391e-01 165 2012 2 2.50364e+00 6.35889e-01 28 2012 3 1.22850e+00 6.08830e-01 71 2012 4 1.70425e+00 3.20136e-01 81 2012 5 1.17863e+00 1.97689e-01 33 2012 6 2.27743e+00 1.02349e+00 16 2012 7 1.32390e+00 9.95899e-02 32 2012 8 3.09680e-01 0.00000e+00 2 2012 9 1.38247e+00 6.90456e-01 41 2012 10 1.75741e+00 1.14888e+00 160 2012 11 1.39498e+00 7.24317e-01 164 2012 12 1.32266e+00 9.25709e-01 121 2013 1 1.61785e+00 9.38634e-01 51 2013 2 1.79030e+00 6.32060e-01 92 2013 3 1.24779e+00 4.17572e-01 90 2013 4 1.30792e+00 1.33567e-01 32 2013 5 2.21241e+00 1.33811e+00 35 2013 6 2.05105e+00 8.84104e-01 28 2013 7 nan nan 0 2013 8 1.35268e+00 7.89633e-02 16 2013 9 9.76267e-01 2.13722e-01 50 2013 10 1.06258e+00 3.55883e-01 95 2013 11 1.76203e+00 1.25733e+00 154 2013 12 1.34551e+00 4.34948e-01 59 2014 1 1.24650e+00 3.56636e-01 56 2014 2 1.66486e+00 5.69080e-01 88 2014 3 1.05290e+00 1.21149e-01 50 2014 4 1.39730e+00 4.82990e-01 32 2014 5 1.76524e+00 2.10036e-02 4 2014 6 nan nan 0 2014 7 1.30031e+00 1.16445e-01 38 2014 8 1.63183e+00 3.70868e-02 16 2014 9 1.24929e+00 3.51904e-01 50 2014 10 1.07658e+00 5.85387e-01 220 2014 11 1.95061e+00 8.87178e-01 174 2014 12 1.27758e+00 3.52176e-01 128 2015 1 1.19180e+00 4.76275e-01 143 2015 2 1.32511e+00 2.95012e-01 160 2015 3 1.45079e+00 4.38963e-01 71 2015 4 1.87879e+00 1.39675e-01 18 2015 5 1.36584e+00 4.01171e-01 53 2015 6 1.42788e+00 2.70790e-01 17 2015 7 2.92811e+00 9.14469e-01 20 2015 8 9.58672e-01 4.33191e-01 55 2015 9 7.99740e-01 2.70755e-01 29 2015 10 1.52713e+00 7.44715e-01 106 2015 11 1.28850e+00 2.93800e-01 32 2015 12 1.22432e+00 3.63150e-01 60 2016 1 1.19274e+00 4.41573e-01 41 2016 2 2.42848e+00 7.38969e-01 113 2016 3 2.77308e+00 8.60629e-01 67 2016 4 4.24988e-01 1.03248e-01 15 2016 5 9.89269e-01 1.13708e-01 16 2016 6 1.02607e+00 1.18658e-01 39 2016 7 1.22585e+00 6.48978e-01 75 2016 8 9.88955e-01 2.42843e-01 29 2016 9 1.06579e+00 3.75555e-01 64 2016 10 1.48365e+00 1.12877e+00 168 2016 11 1.48850e+00 6.21516e-01 129 2016 12 1.65794e+00 9.16909e-01 74 2017 1 1.34884e+00 2.64056e-01 35 2017 2 1.47841e+00 3.21448e-01 80 2017 3 1.52509e+00 5.69974e-01 108 2017 4 1.76516e+00 5.21037e-01 94 2017 5 1.50080e+00 4.81266e-01 87 2017 6 7.81731e-01 6.71419e-02 16 2017 7 8.20681e-01 3.02451e-01 31 2017 8 9.76863e-01 1.78224e-01 16 2017 9 1.10930e+00 5.49661e-01 59 2017 10 1.18253e+00 4.10229e-01 48 2017 11 7.44405e-01 1.72264e-01 109 2017 12 1.01676e+00 3.65028e-01 98 2018 1 2.14857e+00 8.21076e-01 147 2018 2 1.41116e+00 2.18108e-01 28 2018 3 2.05175e+00 8.42733e-01 100 2018 4 1.50359e+00 4.08658e-01 108 2018 5 1.32015e+00 1.22250e-01 32 2018 6 8.98234e-01 9.35707e-02 32 2018 7 1.47516e+00 4.31774e-01 19 2018 8 9.94011e-01 1.85391e-01 30 2018 9 8.77228e-01 1.37757e-01 39 2018 10 1.11876e+00 4.83304e-01 101 2018 11 1.10570e+00 1.94332e-01 46 2018 12 1.23292e+00 3.22941e-01 49 2019 1 1.92634e+00 1.15874e+00 35 2019 2 1.32602e+00 4.10122e-01 32 2019 3 1.10323e+00 5.04508e-01 66 2019 4 1.85408e+00 3.93894e-01 64 2019 5 1.29991e+00 2.73863e-01 98 2019 6 1.13222e+00 4.90261e-02 14 2019 7 1.15772e+00 3.80948e-01 48 2019 8 7.66757e-01 5.73728e-01 32 2019 9 1.34317e+00 4.14340e-01 87 2019 10 1.29644e+00 6.18395e-01 110 2019 11 1.21143e+00 1.04898e+00 100 2019 12 1.66466e+00 7.80463e-01 56 2020 1 9.87356e-01 1.53990e-01 49 2020 2 1.92356e+00 5.47982e-01 64 2020 3 1.36217e+00 6.37735e-01 96 2020 4 1.78622e+00 2.87040e-01 64 2020 5 1.07284e+00 1.83205e-01 57 2020 6 1.00434e+00 1.77781e-01 26 2020 7 1.14875e+00 2.55507e-01 32 2020 8 1.30599e+00 2.20223e-01 32 2020 9 1.35209e+00 5.92790e-02 16 2020 10 2.08212e+00 1.73864e+00 52 2020 11 1.33811e+00 4.37171e-01 118 2020 12 1.44324e+00 5.74711e-01 144 2021 1 1.21977e+00 4.39280e-01 24 2021 2 1.96721e+00 6.89767e-01 118 2021 3 1.81581e+00 5.15733e-01 96 2021 4 1.63562e+00 3.20267e-01 43 2021 5 2.09315e+00 8.50228e-02 16 2021 6 nan nan 0 2021 7 nan nan 0 2021 8 5.72844e-01 7.99831e-02 14 2021 9 nan nan 0 2021 10 2.32685e+00 1.08467e+00 39 2021 11 1.09458e+00 3.76513e-01 183 2021 12 8.78984e-01 1.70862e-01 54 2022 1 1.36160e+00 4.10829e-01 131 2022 2 1.50477e+00 5.05545e-01 138 2022 3 1.82433e+00 1.02338e+00 116 2022 4 1.73572e+00 1.37949e-01 16 2022 5 1.75752e+00 4.87540e-01 25 2022 6 1.26234e+00 4.51372e-01 51 2022 7 9.85515e-01 3.44683e-01 65 2022 8 7.11863e-01 2.70143e-01 32 2022 9 1.33647e+00 6.45926e-01 90 2022 10 1.32094e+00 6.25600e-01 177 2022 11 1.28019e+00 4.99681e-01 120 2022 12 1.56335e+00 5.23792e-01 114 2023 1 1.24806e+00 2.76718e-01 144 2023 2 1.70214e+00 6.54139e-01 159 2023 3 1.90514e+00 1.43824e-01 31 2023 4 1.27450e+00 1.71959e-01 32 2023 5 1.04045e+00 2.07162e-01 48 2023 6 2.29378e+00 1.80139e+00 28 2023 7 1.25218e+00 4.44088e-01 65 2023 8 2.05453e+00 8.63230e-01 81 2023 9 1.27124e+00 1.38090e+00 59 2023 10 1.34871e+00 8.82794e-01 181 2023 11 1.27129e+00 5.26331e-01 133 2023 12 1.01187e+00 3.45317e-01 56 2024 1 1.69335e+00 6.36092e-01 69 2024 2 1.14837e+00 2.52959e-01 73 2024 3 1.40722e+00 4.82530e-01 64 2024 4 1.67605e+00 5.01749e-01 32