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 7.08951e-01 2.88528e-02 17 2002 8 7.76013e-01 1.24384e-01 46 2002 9 1.05226e+00 2.95007e-01 80 2002 10 1.15531e+00 1.94461e-01 106 2002 11 1.40772e+00 1.64867e-01 141 2002 12 1.12180e+00 1.18189e-01 155 2003 1 1.14266e+00 1.84006e-01 186 2003 2 9.30019e-01 1.19165e-01 109 2003 3 1.86421e+00 1.00418e-01 44 2003 4 1.42685e+00 2.95143e-01 126 2003 5 1.14456e+00 3.15311e-01 43 2003 6 1.05530e+00 1.08282e-01 50 2003 7 1.66832e+00 3.22222e-01 48 2003 8 1.52867e+00 1.85409e-01 48 2003 9 1.42536e+00 2.42763e-01 109 2003 10 9.76864e-01 2.06779e-01 191 2003 11 1.02688e+00 2.16789e-01 224 2003 12 7.90236e-01 1.40659e-01 155 2004 1 6.59488e-01 1.37547e-01 145 2004 2 1.27371e+00 3.56569e-01 63 2004 3 9.11545e-01 1.69027e-01 176 2004 4 7.84936e-01 2.31809e-01 122 2004 5 6.52884e-01 9.70361e-02 146 2004 6 6.48478e-01 3.91637e-02 15 2004 7 9.05307e-01 1.39933e-01 64 2004 8 8.59302e-01 2.32401e-01 65 2004 9 1.09679e+00 3.63704e-01 46 2004 10 1.06386e+00 1.24898e-01 70 2004 11 1.09372e+00 1.85852e-01 159 2004 12 1.23566e+00 2.80479e-01 123 2005 1 1.02517e+00 2.31795e-01 198 2005 2 9.48692e-01 1.79170e-01 144 2005 3 1.05115e+00 1.96961e-01 175 2005 4 1.43686e+00 3.15566e-02 16 2005 5 1.01600e+00 2.23819e-01 111 2005 6 1.07107e+00 1.79640e-01 60 2005 7 1.22991e+00 2.46152e-01 96 2005 8 1.41770e+00 2.88085e-01 38 2005 9 8.95905e-01 3.51173e-01 67 2005 10 8.35512e-01 1.29574e-01 240 2005 11 6.89972e-01 1.72752e-01 222 2005 12 8.11861e-01 1.63583e-01 124 2006 1 9.44870e-01 1.73728e-01 102 2006 2 9.12742e-01 1.45888e-01 162 2006 3 8.91746e-01 1.69391e-01 240 2006 4 7.70214e-01 2.32900e-01 151 2006 5 6.31867e-01 1.18930e-01 128 2006 6 5.60808e-01 8.51278e-02 64 2006 7 6.73366e-01 1.14837e-01 48 2006 8 6.73718e-01 8.00202e-02 128 2006 9 8.46856e-01 1.64440e-01 112 2006 10 8.89947e-01 2.38645e-01 180 2006 11 6.68969e-01 1.59269e-01 137 2006 12 7.86576e-01 2.93683e-01 98 2007 1 1.44893e+00 1.48587e-01 65 2007 2 1.19263e+00 1.80837e-01 186 2007 3 8.57341e-01 9.36029e-02 254 2007 4 7.97388e-01 1.56767e-01 147 2007 5 8.00526e-01 2.20247e-01 23 2007 6 6.26006e-01 1.27138e-01 48 2007 7 7.12279e-01 9.18655e-02 112 2007 8 9.33994e-01 4.86902e-01 80 2007 9 1.24208e+00 2.65865e-01 60 2007 10 9.97533e-01 2.43453e-01 128 2007 11 7.98887e-01 1.67813e-01 247 2007 12 6.49560e-01 8.15282e-02 64 2008 1 9.39472e-01 2.13717e-01 110 2008 2 1.09233e+00 2.97557e-01 218 2008 3 1.53451e+00 2.27046e-01 172 2008 4 1.17262e+00 1.60467e-01 112 2008 5 6.71771e-01 8.37422e-02 96 2008 6 6.27136e-01 9.47731e-02 128 2008 7 5.85263e-01 6.91822e-02 53 2008 8 6.75951e-01 1.82614e-02 16 2008 9 1.24529e+00 1.68044e-01 132 2008 10 9.91034e-01 2.44235e-01 256 2008 11 8.70356e-01 1.83209e-01 250 2008 12 1.08759e+00 4.36863e-01 135 2009 1 1.04523e+00 2.17489e-01 148 2009 2 8.28163e-01 1.46259e-01 176 2009 3 8.61334e-01 2.66557e-01 125 2009 4 1.84175e+00 1.47130e-01 48 2009 5 9.43909e-01 2.37223e-01 80 2009 6 6.49126e-01 4.46376e-02 16 2009 7 6.59193e-01 7.63430e-02 37 2009 8 8.28948e-01 6.23436e-02 40 2009 9 1.11445e+00 2.79173e-01 64 2009 10 1.16760e+00 2.26209e-01 181 2009 11 1.28466e+00 2.10389e-01 160 2009 12 1.60190e+00 4.51937e-02 19 2010 1 1.35028e+00 1.11718e-01 25 2010 2 1.48734e+00 1.33871e-01 47 2010 3 1.16998e+00 1.28424e-01 153 2010 4 1.06724e+00 2.19534e-01 144 2010 5 1.07778e+00 7.93344e-02 48 2010 6 8.37152e-01 7.03235e-02 96 2010 7 8.23505e-01 5.69006e-02 64 2010 8 7.02740e-01 9.37162e-02 32 2010 9 7.96318e-01 1.43398e-01 144 2010 10 7.35638e-01 1.31142e-01 304 2010 11 6.77772e-01 1.19375e-01 272 2010 12 7.71628e-01 1.22876e-01 160 2011 1 9.42119e-01 1.42785e-01 168 2011 2 9.87167e-01 1.64900e-01 112 2011 3 8.86240e-01 1.47904e-01 128 2011 4 9.15551e-01 1.29039e-01 144 2011 5 6.67239e-01 1.08180e-01 80 2011 6 7.10160e-01 8.82265e-02 112 2011 7 7.38586e-01 9.28766e-02 80 2011 8 7.74069e-01 8.22237e-02 67 2011 9 7.07965e-01 1.42372e-01 160 2011 10 6.96203e-01 1.58032e-01 239 2011 11 8.63053e-01 2.87857e-01 102 2011 12 7.68833e-01 2.01990e-01 177 2012 1 7.44267e-01 1.44713e-01 159 2012 2 1.06679e+00 9.12280e-02 30 2012 3 9.43761e-01 1.44482e-01 144 2012 4 7.11859e-01 1.39172e-01 208 2012 5 5.93228e-01 2.53766e-01 144 2012 6 1.45808e+00 7.70126e-01 64 2012 7 1.07152e+00 1.73314e-01 80 2012 8 1.95582e+00 8.89205e-01 80 2012 9 1.34470e+00 1.67395e-01 80 2012 10 1.18805e+00 1.30769e-01 189 2012 11 7.02825e-01 1.19955e-01 224 2012 12 5.71201e-01 1.03269e-01 76 2013 1 6.73504e-01 1.16103e-01 110 2013 2 9.50632e-01 2.97914e-01 144 2013 3 1.62053e+00 2.49433e-01 84 2013 4 1.40690e+00 1.66374e-01 78 2013 5 1.04222e+00 1.02648e-01 80 2013 6 7.90423e-01 2.65234e-02 32 2013 7 nan nan 0 2013 8 1.65011e+00 2.38079e-01 74 2013 9 1.27187e+00 2.88408e-01 144 2013 10 1.15437e+00 1.59080e-01 176 2013 11 1.06669e+00 2.69284e-01 83 2013 12 8.38529e-01 2.61819e-01 130 2014 1 1.37641e+00 1.61726e-01 58 2014 2 1.14368e+00 2.03560e-01 144 2014 3 1.51166e+00 3.53530e-01 109 2014 4 1.45188e+00 1.85704e-01 48 2014 5 1.52040e+00 2.76209e-01 118 2014 6 9.10874e-01 4.05333e-02 96 2014 7 8.14166e-01 8.74941e-02 48 2014 8 7.41790e-01 1.16559e-01 84 2014 9 9.23196e-01 2.43421e-01 160 2014 10 9.45671e-01 1.65521e-01 310 2014 11 9.62841e-01 1.88704e-01 152 2014 12 1.20182e+00 3.42468e-01 172 2015 1 1.40071e+00 2.19600e-01 146 2015 2 1.51582e+00 3.56471e-01 141 2015 3 1.05116e+00 1.07865e-01 144 2015 4 7.98314e-01 4.59053e-02 48 2015 5 1.15923e+00 3.09529e-01 144 2015 6 9.12906e-01 1.17109e-01 43 2015 7 7.69579e-01 6.25330e-02 64 2015 8 7.66851e-01 8.55167e-02 98 2015 9 1.00517e+00 9.28372e-02 86 2015 10 8.46506e-01 7.36159e-02 131 2015 11 1.36045e+00 3.23392e-01 188 2015 12 1.36446e+00 2.07456e-01 114 2016 1 1.70132e+00 1.91982e-01 20 2016 2 1.35680e+00 1.43672e-01 127 2016 3 9.96093e-01 3.06469e-01 93 2016 4 1.53440e+00 1.08198e-01 80 2016 5 9.15185e-01 1.05964e-01 112 2016 6 7.75980e-01 6.20602e-02 112 2016 7 8.14834e-01 1.68174e-01 160 2016 8 1.13225e+00 2.73606e-01 123 2016 9 1.04249e+00 2.07535e-01 160 2016 10 9.72551e-01 2.17608e-01 256 2016 11 6.40997e-01 1.41329e-01 176 2016 12 8.07371e-01 1.85402e-01 142 2017 1 1.20138e+00 3.25455e-01 46 2017 2 1.28100e+00 2.21955e-01 195 2017 3 9.40961e-01 2.40958e-01 177 2017 4 8.08459e-01 9.02643e-02 112 2017 5 7.30433e-01 1.39455e-01 96 2017 6 7.62191e-01 9.20306e-02 48 2017 7 1.20549e+00 1.18001e-01 64 2017 8 9.49815e-01 6.14148e-02 36 2017 9 9.73410e-01 9.45961e-02 128 2017 10 1.01145e+00 3.13201e-01 175 2017 11 7.01209e-01 1.27489e-01 252 2017 12 7.31704e-01 1.68787e-01 107 2018 1 8.30259e-01 1.35390e-01 176 2018 2 9.91767e-01 1.85752e-01 96 2018 3 9.11580e-01 1.86057e-01 192 2018 4 7.99126e-01 1.24801e-01 144 2018 5 8.81832e-01 8.69211e-02 82 2018 6 8.83822e-01 2.20531e-01 62 2018 7 9.08942e-01 1.62709e-01 66 2018 8 1.26229e+00 1.86994e-01 62 2018 9 9.68759e-01 1.62177e-01 128 2018 10 1.43660e+00 3.66295e-01 242 2018 11 1.39259e+00 4.18061e-01 111 2018 12 1.63482e+00 1.61289e-01 36 2019 1 1.59372e+00 1.64526e-01 55 2019 2 1.52813e+00 3.13103e-01 62 2019 3 1.16134e+00 1.53095e-01 209 2019 4 1.03815e+00 1.67272e-01 112 2019 5 9.05071e-01 2.13329e-01 129 2019 6 7.13450e-01 8.20843e-02 88 2019 7 8.97249e-01 4.63623e-02 64 2019 8 8.56229e-01 2.82986e-01 134 2019 9 9.76130e-01 2.23393e-01 240 2019 10 9.13285e-01 2.13301e-01 128 2019 11 7.70471e-01 2.01326e-01 176 2019 12 9.52850e-01 2.79103e-01 64 2020 1 1.37163e+00 1.80575e-01 104 2020 2 1.37562e+00 2.95661e-01 80 2020 3 1.47708e+00 3.22522e-01 77 2020 4 1.21290e+00 1.43823e-01 96 2020 5 1.16035e+00 3.20517e-01 96 2020 6 1.06054e+00 2.31749e-01 80 2020 7 6.95545e-01 4.91886e-02 46 2020 8 7.91871e-01 5.09940e-02 48 2020 9 1.37549e+00 3.65269e-01 64 2020 10 1.48505e+00 4.16410e-01 160 2020 11 1.11713e+00 2.52259e-01 179 2020 12 9.01487e-01 2.15596e-01 243 2021 1 1.17869e+00 1.56431e-01 87 2021 2 1.21233e+00 2.32701e-01 48 2021 3 1.39496e+00 1.52995e-01 111 2021 4 1.19755e+00 1.88608e-01 145 2021 5 1.03752e+00 2.63191e-01 92 2021 6 8.24419e-01 1.21333e-01 32 2021 7 1.18186e+00 1.57403e-01 80 2021 8 1.10712e+00 2.49187e-01 144 2021 9 1.50601e+00 2.59361e-01 96 2021 10 1.41867e+00 2.96913e-01 112 2021 11 1.02204e+00 2.24252e-01 207 2021 12 8.45826e-01 1.50879e-01 144 2022 1 1.02822e+00 2.24759e-01 159 2022 2 1.12850e+00 1.42275e-01 116 2022 3 1.13100e+00 2.54829e-01 194 2022 4 1.16572e+00 6.16745e-02 35 2022 5 9.41226e-01 2.12550e-01 52 2022 6 8.92027e-01 1.60998e-01 168 2022 7 7.16167e-01 1.31129e-01 108 2022 8 9.09891e-01 1.19335e-01 68 2022 9 1.44951e+00 7.89906e-01 115 2022 10 8.67360e-01 2.08630e-01 301 2022 11 7.37585e-01 1.39505e-01 99 2022 12 7.15032e-01 1.41907e-01 144 2023 1 8.12150e-01 1.64850e-01 167 2023 2 1.42628e+00 2.86764e-01 110 2023 3 1.10228e+00 1.66364e-01 94 2023 4 1.05467e+00 2.45222e-01 80 2023 5 6.85268e-01 6.71827e-02 65 2023 6 7.93456e-01 9.76167e-02 79 2023 7 8.03717e-01 2.30227e-01 54 2023 8 8.39805e-01 1.51126e-01 64 2023 9 1.07034e+00 2.94165e-01 165 2023 10 1.04961e+00 3.47149e-01 197 2023 11 7.27191e-01 1.42216e-01 115 2023 12 1.63945e+00 4.76024e-01 74 2024 1 1.47251e+00 1.49324e-01 69 2024 2 1.32820e+00 1.07128e-01 80 2024 3 1.27256e+00 1.07686e-01 59 2024 4 nan nan 0