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 6.44194e+01 4.16682e-03 16 2002 8 5.98937e+01 5.19035e-03 16 2002 9 5.22418e+01 1.79066e+00 39 2002 10 4.38090e+01 2.54168e+00 51 2002 11 3.40836e+01 2.17200e+00 167 2002 12 2.99304e+01 4.68885e-01 130 2003 1 3.21568e+01 1.36576e+00 196 2003 2 3.92467e+01 2.57208e+00 96 2003 3 5.25785e+01 7.52442e-01 34 2003 4 5.75620e+01 2.24165e+00 127 2003 5 6.23083e+01 6.60631e-01 32 2003 6 6.47114e+01 1.31412e-01 52 2003 7 6.31201e+01 4.33128e-01 32 2003 8 nan nan 0 2003 9 5.04956e+01 1.59895e+00 63 2003 10 4.19010e+01 2.57504e+00 147 2003 11 3.37410e+01 2.00021e+00 177 2003 12 2.97976e+01 4.68962e-01 134 2004 1 3.28980e+01 1.25776e+00 90 2004 2 4.23487e+01 1.79519e+00 48 2004 3 5.02266e+01 1.59352e+00 161 2004 4 5.72806e+01 1.86627e+00 84 2004 5 6.28509e+01 1.20783e+00 60 2004 6 6.47271e+01 1.72730e-02 24 2004 7 6.43202e+01 6.24823e-02 18 2004 8 5.82871e+01 9.18520e-01 33 2004 9 5.24676e+01 3.27976e+00 62 2004 10 4.32518e+01 2.85823e+00 85 2004 11 3.44107e+01 2.02287e+00 99 2004 12 2.96522e+01 4.37676e-01 98 2005 1 3.30349e+01 1.75077e+00 104 2005 2 3.96011e+01 1.92962e+00 126 2005 3 4.92678e+01 2.89345e+00 146 2005 4 5.77356e+01 1.69551e+00 54 2005 5 6.29828e+01 1.09631e+00 55 2005 6 6.46557e+01 1.68032e-01 39 2005 7 6.30125e+01 3.65406e-01 26 2005 8 6.00307e+01 1.73922e+00 54 2005 9 4.79419e+01 3.13829e-03 15 2005 10 4.23384e+01 2.78284e+00 168 2005 11 3.38060e+01 2.08227e+00 114 2005 12 2.98139e+01 4.97226e-01 97 2006 1 3.32073e+01 1.91066e+00 76 2006 2 3.97420e+01 2.42632e+00 159 2006 3 4.89814e+01 3.05757e+00 168 2006 4 5.84056e+01 2.21897e+00 100 2006 5 6.36840e+01 6.23614e-01 90 2006 6 6.48380e+01 4.56132e-03 15 2006 7 6.29697e+01 5.73602e-01 47 2006 8 5.95759e+01 1.29284e+00 54 2006 9 5.17236e+01 2.99134e+00 105 2006 10 4.27054e+01 3.05946e+00 161 2006 11 3.41502e+01 2.18684e+00 173 2006 12 2.97786e+01 4.95355e-01 76 2007 1 3.28723e+01 1.76977e+00 76 2007 2 4.09926e+01 1.72439e+00 117 2007 3 5.04957e+01 2.81113e+00 181 2007 4 5.79818e+01 2.07015e+00 133 2007 5 6.25273e+01 1.44723e+00 33 2007 6 6.46312e+01 3.74711e-02 10 2007 7 6.28624e+01 4.58675e-01 62 2007 8 5.84404e+01 9.74304e-01 51 2007 9 5.00851e+01 2.61549e+00 72 2007 10 4.50016e+01 9.73102e-01 90 2007 11 3.49990e+01 2.15976e+00 170 2007 12 2.97398e+01 1.34894e-01 54 2008 1 3.26542e+01 2.05388e+00 142 2008 2 3.93285e+01 2.73514e+00 181 2008 3 5.08455e+01 2.74027e+00 145 2008 4 5.82360e+01 1.03348e+00 93 2008 5 6.35039e+01 8.89475e-01 132 2008 6 6.46843e+01 6.11159e-02 39 2008 7 6.42402e+01 2.71505e-01 24 2008 8 6.06810e+01 1.21243e-02 4 2008 9 5.13986e+01 1.30511e+00 93 2008 10 4.23991e+01 2.81334e+00 198 2008 11 3.47816e+01 1.74463e+00 163 2008 12 2.97694e+01 4.46886e-01 129 2009 1 3.24040e+01 1.72492e+00 143 2009 2 3.98210e+01 2.74232e+00 160 2009 3 4.77728e+01 1.84777e+00 131 2009 4 6.03741e+01 1.51794e+00 34 2009 5 6.36874e+01 7.30727e-01 72 2009 6 nan nan 0 2009 7 6.35700e+01 2.08681e-02 7 2009 8 5.91932e+01 1.23244e+00 37 2009 9 5.40924e+01 1.06796e+00 40 2009 10 4.27146e+01 2.60746e+00 143 2009 11 3.43713e+01 1.71232e+00 126 2009 12 2.99214e+01 4.67122e-01 43 2010 1 3.27720e+01 1.84086e+00 93 2010 2 4.09299e+01 2.95720e+00 72 2010 3 4.92135e+01 3.80003e+00 106 2010 4 5.82237e+01 1.67951e+00 102 2010 5 6.30420e+01 8.30676e-01 64 2010 6 6.46944e+01 4.56940e-02 67 2010 7 6.26167e+01 3.39956e-03 9 2010 8 nan nan 0 2010 9 5.16808e+01 1.95359e+00 130 2010 10 4.35036e+01 2.82469e+00 205 2010 11 3.43018e+01 1.89798e+00 224 2010 12 3.00342e+01 5.47363e-01 172 2011 1 3.27802e+01 1.82607e+00 130 2011 2 4.10214e+01 1.64802e+00 119 2011 3 5.02164e+01 2.05293e+00 112 2011 4 5.72462e+01 1.93253e+00 124 2011 5 6.33111e+01 6.78594e-01 71 2011 6 6.47606e+01 1.12599e-01 47 2011 7 6.26310e+01 4.76599e-01 60 2011 8 5.79328e+01 1.63490e+00 38 2011 9 5.21652e+01 2.18177e+00 81 2011 10 4.34216e+01 2.97813e+00 232 2011 11 3.50504e+01 2.27236e+00 130 2011 12 2.98118e+01 5.79232e-01 190 2012 1 3.19517e+01 1.95147e+00 166 2012 2 3.94396e+01 1.32088e-01 32 2012 3 5.02685e+01 2.45827e+00 120 2012 4 5.93766e+01 1.75456e+00 78 2012 5 6.23024e+01 7.42642e-01 56 2012 6 6.49892e+01 1.75783e-03 15 2012 7 6.34656e+01 5.68757e-01 47 2012 8 5.76472e+01 9.79260e-04 15 2012 9 5.20557e+01 3.06751e+00 55 2012 10 4.23340e+01 2.61007e+00 181 2012 11 3.42619e+01 2.41173e+00 137 2012 12 2.99531e+01 5.33984e-01 76 2013 1 3.39351e+01 1.61732e+00 96 2013 2 3.99657e+01 2.56808e+00 85 2013 3 5.12907e+01 2.28462e+00 82 2013 4 5.80786e+01 2.03205e+00 31 2013 5 6.35931e+01 4.80289e-01 46 2013 6 6.44877e+01 4.99325e-03 16 2013 7 6.22560e+01 1.26422e-03 5 2013 8 5.94792e+01 9.55126e-01 37 2013 9 5.24595e+01 2.52424e+00 102 2013 10 4.21526e+01 3.11097e+00 130 2013 11 3.43553e+01 2.46631e+00 94 2013 12 2.95301e+01 3.00091e-01 134 2014 1 3.25025e+01 1.10698e+00 94 2014 2 4.09460e+01 1.82454e+00 143 2014 3 4.95060e+01 2.87106e+00 100 2014 4 5.74642e+01 2.21142e+00 50 2014 5 6.28563e+01 6.97464e-01 68 2014 6 6.46722e+01 1.30375e-01 50 2014 7 6.44937e+01 7.86437e-02 28 2014 8 5.96078e+01 2.08905e+00 37 2014 9 5.21370e+01 2.11547e+00 90 2014 10 4.31837e+01 2.80319e+00 238 2014 11 3.42523e+01 2.46597e+00 192 2014 12 2.97810e+01 3.29900e-01 141 2015 1 3.35644e+01 1.47368e+00 118 2015 2 3.92772e+01 1.67243e+00 123 2015 3 5.10187e+01 2.98181e+00 71 2015 4 5.72403e+01 1.87918e+00 40 2015 5 6.34120e+01 7.51523e-01 80 2015 6 6.47711e+01 1.25985e-02 14 2015 7 6.32478e+01 6.58049e-01 26 2015 8 5.84891e+01 9.65836e-01 34 2015 9 5.15960e+01 1.55039e+00 42 2015 10 4.21699e+01 2.16820e+00 144 2015 11 3.39761e+01 1.71105e+00 72 2015 12 2.98966e+01 3.40196e-01 88 2016 1 3.26348e+01 1.71719e+00 92 2016 2 4.07023e+01 2.62374e+00 188 2016 3 4.92564e+01 2.15734e+00 133 2016 4 5.60236e+01 3.77067e-01 44 2016 5 6.31012e+01 6.92836e-01 51 2016 6 6.46131e+01 1.69213e-01 100 2016 7 6.38575e+01 6.96998e-01 127 2016 8 5.81899e+01 8.79122e-01 94 2016 9 5.06850e+01 1.93474e+00 86 2016 10 4.23699e+01 2.83427e+00 234 2016 11 3.46753e+01 2.01083e+00 157 2016 12 2.95120e+01 1.90131e-01 108 2017 1 3.24328e+01 1.78848e+00 127 2017 2 4.03952e+01 2.79240e+00 143 2017 3 5.01924e+01 2.54793e+00 169 2017 4 5.74405e+01 1.95012e+00 76 2017 5 6.32029e+01 9.49686e-01 74 2017 6 6.47159e+01 7.68759e-02 37 2017 7 6.33920e+01 7.94533e-01 35 2017 8 5.89930e+01 9.04889e-01 32 2017 9 5.28680e+01 2.96551e+00 48 2017 10 4.19797e+01 2.72125e+00 193 2017 11 3.43725e+01 2.20071e+00 246 2017 12 2.98522e+01 3.62346e-01 77 2018 1 3.23982e+01 1.56499e+00 175 2018 2 4.11819e+01 2.40029e+00 64 2018 3 4.86676e+01 2.64074e+00 178 2018 4 5.83804e+01 2.01239e+00 119 2018 5 6.37588e+01 4.18062e-01 52 2018 6 6.47879e+01 1.97331e-02 29 2018 7 6.32269e+01 6.79302e-01 15 2018 8 5.73279e+01 2.39501e-03 16 2018 9 5.11602e+01 2.21687e+00 105 2018 10 4.33705e+01 3.03811e+00 150 2018 11 3.35971e+01 1.41614e+00 78 2018 12 3.00968e+01 4.55581e-01 63 2019 1 3.25283e+01 1.62879e+00 100 2019 2 3.96399e+01 2.60901e+00 42 2019 3 4.86752e+01 2.93399e+00 116 2019 4 5.94769e+01 9.51519e-01 80 2019 5 6.33751e+01 9.55032e-01 114 2019 6 6.46756e+01 1.15872e-01 21 2019 7 6.26326e+01 3.08918e-01 75 2019 8 5.85555e+01 1.83205e+00 39 2019 9 5.11392e+01 2.53972e+00 113 2019 10 4.38382e+01 2.84689e+00 131 2019 11 3.38364e+01 2.21232e+00 140 2019 12 2.99836e+01 5.49806e-01 48 2020 1 3.10504e+01 1.12301e+00 84 2020 2 4.04432e+01 3.15901e+00 122 2020 3 5.01241e+01 2.40404e+00 79 2020 4 5.78572e+01 2.11057e+00 64 2020 5 6.26556e+01 8.75727e-01 80 2020 6 6.48299e+01 8.16520e-02 60 2020 7 nan nan 0 2020 8 6.13667e+01 6.09145e-01 30 2020 9 5.39529e+01 6.27196e-01 32 2020 10 4.15004e+01 1.72810e+00 87 2020 11 3.43443e+01 1.90928e+00 162 2020 12 2.97527e+01 3.80465e-01 221 2021 1 3.20879e+01 1.99331e+00 64 2021 2 4.26721e+01 1.07107e+00 80 2021 3 4.88292e+01 1.88693e+00 120 2021 4 5.74008e+01 1.91593e+00 111 2021 5 6.36948e+01 4.02877e-01 130 2021 6 6.46299e+01 1.13113e-01 46 2021 7 6.31859e+01 4.05927e-01 20 2021 8 5.88220e+01 1.00434e+00 68 2021 9 5.36297e+01 2.27996e+00 35 2021 10 3.98211e+01 1.39968e+00 18 2021 11 3.38744e+01 1.88770e+00 240 2021 12 2.96687e+01 5.21001e-01 89 2022 1 3.30798e+01 1.97701e+00 108 2022 2 4.09544e+01 2.52542e+00 118 2022 3 4.98023e+01 2.95358e+00 159 2022 4 5.98763e+01 4.04857e-01 20 2022 5 6.25230e+01 2.92945e-01 33 2022 6 6.45137e+01 1.45709e-01 59 2022 7 6.35144e+01 5.05786e-01 67 2022 8 6.14865e+01 8.59727e-01 36 2022 9 5.03029e+01 1.35626e+00 84 2022 10 4.35881e+01 2.30118e+00 217 2022 11 3.50292e+01 2.21845e+00 137 2022 12 2.98279e+01 5.17763e-01 191 2023 1 3.21597e+01 1.67114e+00 221 2023 2 3.91657e+01 2.81993e+00 138 2023 3 5.04859e+01 1.57678e+00 121 2023 4 5.94073e+01 5.34591e-01 71 2023 5 6.19954e+01 6.24851e-01 60 2023 6 6.46489e+01 7.92742e-02 78 2023 7 6.45450e+01 2.82856e-03 16 2023 8 5.94203e+01 1.36022e+00 60 2023 9 5.22716e+01 1.78223e+00 107 2023 10 4.16374e+01 2.32226e+00 177 2023 11 3.59285e+01 2.11241e+00 114 2023 12 2.95368e+01 1.65122e-01 50 2024 1 3.26109e+01 2.19454e+00 65 2024 2 4.12839e+01 2.01315e+00 144 2024 3 5.20349e+01 2.32673e+00 78 2024 4 nan nan 0