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 4.26223e+00 1.67341e-01 52 2002 8 3.86801e+00 4.92744e-01 64 2002 9 3.48601e+00 1.15244e+00 128 2002 10 3.42738e+00 3.81677e-01 144 2002 11 3.08039e+00 7.01158e-01 208 2002 12 2.99643e+00 3.96835e-01 164 2003 1 2.45905e+00 6.33193e-01 238 2003 2 3.13069e+00 4.49719e-01 160 2003 3 nan nan 0 2003 4 3.36272e+00 9.58199e-01 31 2003 5 2.80861e+00 1.22865e+00 27 2003 6 3.32957e+00 7.59683e-01 64 2003 7 2.63319e+00 4.38828e-01 32 2003 8 2.73618e+00 3.41419e-01 16 2003 9 2.15544e+00 1.25654e+00 99 2003 10 3.49471e+00 8.60231e-01 201 2003 11 2.65738e+00 8.10076e-01 226 2003 12 3.36966e+00 4.52885e-01 178 2004 1 3.96655e+00 4.92553e-01 141 2004 2 3.38666e+00 8.80711e-01 49 2004 3 3.18820e+00 1.15329e+00 100 2004 4 3.88580e+00 8.33986e-01 96 2004 5 4.13226e+00 8.88721e-01 152 2004 6 4.01232e+00 6.01342e-01 72 2004 7 3.75514e+00 7.53646e-01 48 2004 8 3.55531e+00 5.10345e-01 56 2004 9 2.28229e+00 1.18799e+00 70 2004 10 6.33455e-01 1.17295e+00 74 2004 11 1.10657e+00 7.02211e-01 82 2004 12 1.72654e+00 5.41316e-01 110 2005 1 2.10394e+00 7.03649e-01 162 2005 2 3.10835e+00 6.50286e-01 99 2005 3 2.39342e+00 8.18552e-01 141 2005 4 9.83436e-01 5.62350e-01 16 2005 5 3.70585e+00 6.46154e-01 26 2005 6 2.98944e+00 4.54844e+00 48 2005 7 2.98771e+00 9.86331e-01 84 2005 8 1.87120e+00 5.50856e-01 48 2005 9 3.35485e+00 7.21559e-01 59 2005 10 2.91303e+00 3.91124e-01 244 2005 11 3.26647e+00 4.49291e-01 303 2005 12 3.15954e+00 3.70704e-01 208 2006 1 2.34031e+00 1.05297e+00 192 2006 2 2.45559e+00 5.44051e-01 160 2006 3 2.25459e+00 1.04367e+00 169 2006 4 3.11637e+00 5.99660e-01 129 2006 5 3.93409e+00 3.23227e-01 176 2006 6 4.11045e+00 7.17721e-01 96 2006 7 4.14557e+00 4.27200e-01 108 2006 8 3.85298e+00 5.91847e-01 112 2006 9 3.24268e+00 4.29792e-01 114 2006 10 3.25422e+00 4.92065e-01 203 2006 11 3.84204e+00 3.84479e-01 272 2006 12 3.84167e+00 5.09549e-01 148 2007 1 3.99191e+00 4.13984e-01 81 2007 2 3.56245e+00 5.32201e-01 160 2007 3 3.70244e+00 6.54101e-01 250 2007 4 4.00756e+00 5.98281e-01 176 2007 5 4.34132e+00 2.73570e-01 80 2007 6 3.81797e+00 4.67254e-01 52 2007 7 3.40657e+00 2.19301e-01 57 2007 8 3.46631e+00 2.08575e-01 95 2007 9 3.18089e+00 1.12005e+00 160 2007 10 2.98226e+00 1.83532e-01 112 2007 11 3.80781e+00 3.54510e-01 279 2007 12 4.00000e+00 4.26091e-01 144 2008 1 4.04050e+00 3.01878e-01 176 2008 2 3.86684e+00 5.51524e-01 298 2008 3 2.34648e+00 8.38722e-01 185 2008 4 3.64973e+00 5.48910e-01 176 2008 5 3.49922e+00 4.86656e-01 198 2008 6 3.98011e+00 5.09024e-01 115 2008 7 4.14299e+00 5.39693e-01 32 2008 8 3.15262e+00 3.75375e-01 32 2008 9 1.25949e+00 7.24521e-01 66 2008 10 2.13402e+00 4.22485e-01 219 2008 11 3.47510e+00 4.24105e-01 229 2008 12 3.33683e+00 6.50353e-01 226 2009 1 3.17711e+00 8.50723e-01 132 2009 2 3.80175e+00 5.23007e-01 211 2009 3 4.01455e+00 5.51960e-01 151 2009 4 9.55462e-01 1.35785e+00 70 2009 5 2.80493e+00 8.36800e-01 65 2009 6 4.77899e+00 7.73365e-01 92 2009 7 3.72430e+00 4.88898e-01 57 2009 8 3.78887e+00 5.52361e-01 112 2009 9 3.52507e+00 7.57466e-01 147 2009 10 2.97597e+00 4.80442e-01 176 2009 11 3.45564e+00 4.06989e-01 173 2009 12 2.78063e+00 9.62283e-01 32 2010 1 1.23389e+00 5.36046e-01 160 2010 2 7.45686e-01 3.68062e-01 112 2010 3 1.48409e+00 5.86901e-01 82 2010 4 1.90996e+00 1.24588e+00 82 2010 5 1.96052e+00 2.87130e+00 65 2010 6 3.93762e+00 9.23398e-01 151 2010 7 4.50368e+00 5.63634e-01 91 2010 8 4.01680e+00 4.75593e-01 29 2010 9 3.38791e+00 1.21021e+00 208 2010 10 3.61835e+00 4.07883e-01 363 2010 11 3.97436e+00 4.29363e-01 293 2010 12 3.71852e+00 6.83796e-01 256 2011 1 3.75561e+00 3.93268e-01 183 2011 2 3.95788e+00 1.56906e-01 144 2011 3 3.50568e+00 2.70012e-01 160 2011 4 3.36511e+00 3.83763e-01 142 2011 5 3.99020e+00 5.17717e-01 164 2011 6 4.07575e+00 4.31169e-01 112 2011 7 3.78563e+00 3.67557e-01 118 2011 8 3.91152e+00 3.39663e-01 127 2011 9 3.45476e+00 3.13565e-01 165 2011 10 3.49908e+00 3.15946e-01 320 2011 11 3.90477e+00 3.09871e-01 240 2011 12 4.15188e+00 2.97846e-01 256 2012 1 3.74222e+00 4.05721e-01 240 2012 2 3.77494e+00 3.72893e-01 64 2012 3 3.71312e+00 4.96507e-01 219 2012 4 3.69018e+00 7.88073e-01 224 2012 5 3.77412e+00 2.52142e-01 144 2012 6 3.19467e+00 3.54477e-01 12 2012 7 3.76071e+00 1.69708e+00 48 2012 8 4.87800e+00 6.24072e-01 8 2012 9 2.16665e+00 1.05484e+00 29 2012 10 1.76950e+00 1.67072e+00 127 2012 11 3.38284e+00 6.83013e-01 208 2012 12 3.77946e+00 5.80537e-01 144 2013 1 3.96084e+00 7.67075e-01 123 2013 2 3.73613e+00 6.12126e-01 117 2013 3 1.56522e+00 1.02103e+00 125 2013 4 3.36167e+00 1.62051e+00 69 2013 5 4.38736e+00 8.99625e-01 41 2013 6 4.26587e+00 1.00447e+00 128 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 1.73869e+00 1.53444e+00 126 2013 10 2.79320e+00 1.19371e+00 111 2013 11 3.04208e+00 3.32296e-01 93 2013 12 3.69830e+00 3.75337e-01 138 2014 1 3.12732e+00 4.81843e-01 96 2014 2 2.63249e+00 7.20972e-01 107 2014 3 2.86724e+00 4.94300e-01 88 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 3.61068e+00 9.04991e-02 14 2014 7 4.34192e+00 5.90634e-01 112 2014 8 3.81574e+00 3.89276e-01 86 2014 9 3.97606e+00 5.95703e-01 128 2014 10 3.40945e+00 5.44351e-01 320 2014 11 3.78601e+00 3.40279e-01 256 2014 12 3.87864e+00 5.56957e-01 221 2015 1 2.96956e+00 7.32085e-01 162 2015 2 2.80114e+00 1.83384e+00 114 2015 3 3.20818e+00 5.98466e-01 59 2015 4 2.94481e+00 4.01825e-01 16 2015 5 4.02290e+00 6.85470e-01 122 2015 6 4.39703e+00 3.85158e-01 66 2015 7 3.99011e+00 1.07822e-01 32 2015 8 3.64944e+00 5.27031e-01 80 2015 9 3.78769e+00 7.03849e-01 107 2015 10 3.48300e+00 4.45465e-01 195 2015 11 3.55527e+00 5.96402e-01 185 2015 12 4.06979e+00 3.02970e-01 94 2016 1 3.24428e+00 7.94248e-01 185 2016 2 1.94071e+00 7.25792e-01 266 2016 3 2.77951e+00 5.67766e-01 188 2016 4 2.44661e+00 8.81290e-01 48 2016 5 4.25039e+00 3.75266e-01 57 2016 6 4.03191e+00 6.27723e-01 139 2016 7 4.06226e+00 9.63843e-01 149 2016 8 3.63840e+00 8.76241e-01 131 2016 9 2.89488e+00 6.21148e-01 212 2016 10 3.19068e+00 5.42268e-01 210 2016 11 3.85169e+00 3.12939e-01 177 2016 12 4.12211e+00 2.19230e-01 173 2017 1 3.57749e+00 7.30254e-01 176 2017 2 2.54120e+00 7.95057e-01 218 2017 3 3.77588e+00 5.45798e-01 227 2017 4 3.81387e+00 6.34538e-01 154 2017 5 3.68996e+00 7.18682e-01 127 2017 6 4.14238e+00 1.63462e-01 31 2017 7 3.52002e+00 5.53620e-01 80 2017 8 3.19211e+00 5.74411e-01 96 2017 9 3.78737e+00 1.02729e+00 157 2017 10 3.32113e+00 6.09030e-01 237 2017 11 3.96961e+00 3.52933e-01 304 2017 12 4.19976e+00 6.51528e-01 192 2018 1 4.01367e+00 2.46554e-01 238 2018 2 3.95698e+00 1.74956e-01 114 2018 3 3.46174e+00 6.66048e-01 136 2018 4 3.83065e+00 4.70536e-01 96 2018 5 3.75464e+00 7.55310e-01 99 2018 6 3.36506e+00 1.28916e+00 75 2018 7 4.26745e+00 8.40641e-01 96 2018 8 9.68960e-01 6.40202e+00 37 2018 9 2.78162e+00 1.71045e+00 183 2018 10 2.34577e+00 6.20271e-01 316 2018 11 2.90884e+00 3.38316e-01 101 2018 12 1.84265e+00 1.10011e+00 101 2019 1 8.09295e-01 5.51195e-01 48 2019 2 nan nan 0 2019 3 2.54113e+00 1.87061e+00 93 2019 4 2.43241e+00 7.87028e-01 80 2019 5 4.21922e+00 6.68294e-01 173 2019 6 3.88392e+00 7.23737e-01 46 2019 7 4.21554e+00 4.06884e-01 78 2019 8 4.68703e+00 9.53371e-01 129 2019 9 4.36177e+00 1.20608e+00 115 2019 10 3.81499e+00 1.14462e+00 108 2019 11 3.82035e+00 3.76147e-01 128 2019 12 3.68440e+00 5.00724e-01 102 2020 1 3.86021e+00 2.98535e-01 114 2020 2 3.53879e+00 4.61428e-01 176 2020 3 3.76909e+00 3.48641e-01 125 2020 4 3.65583e+00 3.61129e-01 72 2020 5 4.15459e+00 4.03156e-01 128 2020 6 3.52616e+00 9.04695e-01 18 2020 7 3.95570e+00 4.63064e-01 55 2020 8 3.14302e+00 3.50727e-01 32 2020 9 2.92253e+00 1.45808e+00 52 2020 10 1.85474e+00 8.81650e-01 151 2020 11 2.88155e+00 1.06341e+00 119 2020 12 3.49237e+00 5.06019e-01 137 2021 1 2.35732e+00 9.80827e-01 64 2021 2 1.50415e+00 6.54643e-01 64 2021 3 2.55981e+00 6.13613e-01 54 2021 4 4.53929e+00 7.83131e-01 15 2021 5 4.85755e+00 1.31413e+00 76 2021 6 4.04697e+00 2.48367e-01 48 2021 7 4.62510e+00 7.21646e-01 51 2021 8 1.84760e+00 3.05597e+00 60 2021 9 1.96298e+00 4.25486e+00 77 2021 10 1.89835e+00 6.34233e-01 79 2021 11 2.76814e+00 5.87337e-01 117 2021 12 3.55365e+00 4.62091e-01 48 2022 1 2.78005e+00 1.03502e+00 189 2022 2 3.67236e+00 4.34908e-01 144 2022 3 2.75955e+00 9.74338e-01 192 2022 4 nan nan 0 2022 5 3.81351e+00 3.13802e-01 32 2022 6 4.32640e+00 8.90803e-01 131 2022 7 3.89013e+00 1.57086e+00 96 2022 8 4.39545e+00 1.00133e+00 142 2022 9 4.54554e+00 1.30428e+00 63 2022 10 3.85937e+00 9.03511e-01 270 2022 11 3.95991e+00 6.27969e-01 113 2022 12 3.92019e+00 5.57474e-01 193 2023 1 3.81573e+00 4.38876e-01 204 2023 2 3.51781e+00 3.35353e-01 160 2023 3 2.62842e+00 6.43441e-01 160 2023 4 4.65318e+00 5.36661e-01 63 2023 5 4.27657e+00 1.13785e+00 112 2023 6 3.72110e+00 5.86020e-01 81 2023 7 3.66962e+00 2.81836e-01 32 2023 8 4.23938e+00 7.68994e-01 96 2023 9 2.27085e+00 2.87012e+00 32 2023 10 3.25878e+00 2.17608e+00 167 2023 11 3.88682e+00 5.27280e-01 192 2023 12 1.91298e+00 1.55760e+00 33 2024 1 -8.21164e-01 0.00000e+00 2 2024 2 2.05113e+00 7.64873e-01 116 2024 3 2.77000e+00 4.79025e-01 69 2024 4 nan nan 0