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 6.18319e+01 1.91475e-02 32 2002 8 5.81364e+01 4.50030e-01 46 2002 9 5.42271e+01 1.88081e+00 53 2002 10 4.39568e+01 2.35667e+00 110 2002 11 3.75252e+01 1.94702e+00 69 2002 12 3.32943e+01 1.75988e-01 150 2003 1 3.49962e+01 1.07486e+00 167 2003 2 4.24203e+01 2.76219e+00 110 2003 3 5.24674e+01 2.57879e+00 97 2003 4 5.78102e+01 9.86091e-01 64 2003 5 6.17648e+01 2.97488e-01 50 2003 6 nan nan 0 2003 7 6.10807e+01 6.13921e-03 15 2003 8 5.80287e+01 5.52931e-01 42 2003 9 5.18650e+01 8.54355e-03 4 2003 10 4.59751e+01 2.09827e+00 97 2003 11 3.64884e+01 1.13507e+00 116 2003 12 3.35158e+01 3.78045e-01 105 2004 1 3.61423e+01 1.46023e+00 151 2004 2 4.33272e+01 2.88156e+00 118 2004 3 5.28633e+01 2.16830e+00 82 2004 4 5.86818e+01 1.32837e+00 69 2004 5 6.22890e+01 2.78652e-01 46 2004 6 6.26463e+01 5.72790e-02 48 2004 7 6.22087e+01 1.95196e-01 56 2004 8 5.77144e+01 1.03374e+00 64 2004 9 5.17772e+01 2.08647e-01 26 2004 10 4.55613e+01 1.91627e+00 65 2004 11 3.66963e+01 1.39919e+00 80 2004 12 3.32602e+01 2.18931e-01 74 2005 1 3.61784e+01 1.71037e+00 151 2005 2 4.27657e+01 6.19942e-01 76 2005 3 4.99580e+01 1.90249e+00 72 2005 4 5.75278e+01 1.38740e+00 74 2005 5 6.19902e+01 6.44099e-01 71 2005 6 6.19440e+01 0.00000e+00 3 2005 7 6.18526e+01 2.61917e-03 16 2005 8 5.95397e+01 1.34903e+00 39 2005 9 5.38831e+01 1.38793e+00 98 2005 10 4.70272e+01 5.33543e-01 45 2005 11 3.83786e+01 1.07710e+00 56 2005 12 3.35891e+01 4.18847e-01 160 2006 1 3.50069e+01 1.21428e+00 135 2006 2 4.26628e+01 1.61883e+00 118 2006 3 5.11640e+01 2.45909e+00 97 2006 4 5.67868e+01 1.09593e+00 80 2006 5 6.12038e+01 5.92380e-01 73 2006 6 6.26194e+01 2.44709e-01 61 2006 7 6.12636e+01 6.42742e-01 51 2006 8 5.73811e+01 1.40962e-03 16 2006 9 5.22500e+01 1.90409e+00 108 2006 10 4.50553e+01 1.97611e+00 132 2006 11 3.66821e+01 1.34457e+00 125 2006 12 3.34517e+01 2.03968e-01 48 2007 1 3.59228e+01 1.79802e+00 142 2007 2 4.40765e+01 1.00244e+00 64 2007 3 4.98821e+01 1.48174e+00 82 2007 4 5.77156e+01 1.46595e+00 100 2007 5 6.12797e+01 6.13039e-01 93 2007 6 6.26000e+01 2.45548e-01 80 2007 7 6.19910e+01 2.82897e-01 46 2007 8 5.95425e+01 1.23649e+00 43 2007 9 5.21114e+01 1.46929e+00 39 2007 10 4.42881e+01 6.65074e-03 16 2007 11 3.78953e+01 1.59268e+00 189 2007 12 3.33863e+01 5.08632e-01 97 2008 1 3.57675e+01 1.82244e+00 75 2008 2 4.36807e+01 3.03165e+00 122 2008 3 5.14612e+01 3.27961e-01 29 2008 4 5.87931e+01 1.74872e+00 32 2008 5 6.15600e+01 2.13880e-01 16 2008 6 6.28071e+01 2.41969e-02 33 2008 7 6.19865e+01 5.63460e-03 16 2008 8 5.96180e+01 1.08165e+00 75 2008 9 5.25746e+01 1.19447e+00 29 2008 10 4.70738e+01 2.23681e+00 32 2008 11 3.66976e+01 1.70174e+00 167 2008 12 3.34872e+01 3.48599e-01 128 2009 1 3.62660e+01 1.57469e+00 115 2009 2 4.30004e+01 2.12887e+00 94 2009 3 4.85747e+01 1.02427e+00 80 2009 4 5.76322e+01 1.21668e+00 65 2009 5 6.15668e+01 5.74477e-01 80 2009 6 6.28311e+01 2.07979e-02 19 2009 7 6.18772e+01 3.72518e-01 37 2009 8 5.91090e+01 1.57999e+00 66 2009 9 5.44287e+01 1.14488e+00 38 2009 10 4.57535e+01 2.22721e+00 132 2009 11 3.69927e+01 1.30192e+00 92 2009 12 3.33783e+01 1.37770e-01 57 2010 1 3.60189e+01 1.80445e+00 91 2010 2 4.40893e+01 1.67272e+00 117 2010 3 5.05590e+01 2.73143e+00 116 2010 4 5.53299e+01 6.91338e-01 34 2010 5 6.14250e+01 3.16955e-01 25 2010 6 6.24005e+01 2.62524e-01 64 2010 7 6.11028e+01 1.15182e-01 48 2010 8 5.92362e+01 3.21406e-01 19 2010 9 5.38856e+01 2.37387e+00 32 2010 10 4.66384e+01 2.56531e+00 124 2010 11 3.76185e+01 1.30462e+00 141 2010 12 3.31500e+01 9.44021e-01 180 2011 1 3.54508e+01 2.36361e+00 95 2011 2 4.32216e+01 2.16929e+00 82 2011 3 5.18655e+01 2.14091e+00 154 2011 4 5.80579e+01 6.84781e-01 55 2011 5 6.16274e+01 5.08682e-01 32 2011 6 6.21659e+01 1.93564e-01 40 2011 7 6.15983e+01 6.56214e-01 82 2011 8 nan nan 0 2011 9 5.27889e+01 8.61718e-01 59 2011 10 4.61923e+01 1.30012e+00 63 2011 11 3.81477e+01 1.73365e+00 143 2011 12 3.34406e+01 4.37561e-01 185 2012 1 3.52107e+01 1.40143e+00 156 2012 2 4.32476e+01 1.63187e+00 82 2012 3 5.21217e+01 1.70199e+00 58 2012 4 5.62431e+01 4.29915e-01 37 2012 5 6.13589e+01 7.98543e-01 44 2012 6 6.27250e+01 6.50005e-02 2 2012 7 6.15898e+01 4.86777e-01 37 2012 8 6.01808e+01 9.02349e-01 36 2012 9 5.31271e+01 2.83410e+00 36 2012 10 4.34558e+01 2.25914e+00 121 2012 11 3.75323e+01 1.91914e+00 195 2012 12 3.35203e+01 4.84937e-01 92 2013 1 3.52030e+01 1.73200e+00 152 2013 2 4.17767e+01 2.19696e+00 122 2013 3 5.02496e+01 3.05744e+00 90 2013 4 5.76527e+01 2.04843e+00 53 2013 5 6.15764e+01 2.58740e-01 63 2013 6 6.25734e+01 7.24623e-02 25 2013 7 6.16589e+01 5.49225e-01 30 2013 8 5.78781e+01 7.43691e-02 19 2013 9 5.62981e+01 4.92278e-03 16 2013 10 4.47300e+01 2.12366e+00 143 2013 11 3.68277e+01 1.34200e+00 79 2013 12 3.34845e+01 4.75942e-01 144 2014 1 3.67687e+01 8.21070e-01 125 2014 2 4.15380e+01 1.21905e+00 96 2014 3 5.05318e+01 1.94838e+00 149 2014 4 5.84364e+01 1.60558e+00 80 2014 5 6.13833e+01 5.94142e-01 48 2014 6 6.25623e+01 1.68209e-01 104 2014 7 6.14605e+01 6.80930e-01 39 2014 8 5.94016e+01 1.00988e+00 80 2014 9 5.55411e+01 1.35266e+00 36 2014 10 4.39751e+01 2.35357e+00 138 2014 11 3.75079e+01 2.20598e+00 150 2014 12 3.31438e+01 9.63773e-01 84 2015 1 3.71044e+01 1.43114e+00 112 2015 2 4.32095e+01 1.95397e+00 184 2015 3 5.16786e+01 2.59423e+00 126 2015 4 5.92977e+01 5.65069e-03 16 2015 5 6.13018e+01 6.41015e-01 91 2015 6 6.25950e+01 2.90469e-01 40 2015 7 6.19674e+01 1.71366e-01 42 2015 8 5.93790e+01 9.81971e-01 49 2015 9 5.32877e+01 2.11400e+00 45 2015 10 4.53515e+01 2.78468e+00 100 2015 11 3.70244e+01 1.87855e+00 113 2015 12 3.31677e+01 8.43692e-02 72 2016 1 3.57216e+01 1.77180e+00 31 2016 2 4.35443e+01 2.22317e+00 161 2016 3 4.96058e+01 2.31184e+00 50 2016 4 5.71562e+01 1.92661e+00 86 2016 5 6.18227e+01 3.96937e-01 64 2016 6 6.25283e+01 6.10305e-02 44 2016 7 6.20994e+01 4.88958e-01 49 2016 8 5.81795e+01 1.19683e-01 48 2016 9 5.28186e+01 1.38803e+00 78 2016 10 4.57096e+01 2.05554e+00 63 2016 11 3.66905e+01 1.57853e+00 137 2016 12 3.33038e+01 2.33249e-01 74 2017 1 3.61322e+01 1.81426e+00 139 2017 2 4.34913e+01 2.18778e+00 118 2017 3 5.16107e+01 2.59256e+00 119 2017 4 5.96924e+01 1.46976e-01 27 2017 5 6.15572e+01 6.72294e-01 91 2017 6 6.25854e+01 3.26584e-02 37 2017 7 6.18293e+01 4.80085e-01 36 2017 8 5.86859e+01 1.00162e+00 70 2017 9 5.38283e+01 1.66570e+00 95 2017 10 4.36194e+01 1.38968e+00 41 2017 11 3.70173e+01 1.73338e+00 111 2017 12 3.32369e+01 2.28162e-01 204 2018 1 3.49575e+01 9.73316e-01 96 2018 2 4.30172e+01 2.01550e+00 146 2018 3 5.09748e+01 1.86980e+00 129 2018 4 5.81012e+01 1.58896e+00 71 2018 5 nan nan 0 2018 6 6.25304e+01 1.09320e-01 45 2018 7 6.18825e+01 8.08431e-01 12 2018 8 5.93170e+01 1.00136e-03 2 2018 9 5.24139e+01 1.14751e+00 37 2018 10 4.36140e+01 1.84896e+00 95 2018 11 3.85693e+01 1.41578e+00 41 2018 12 3.33969e+01 2.86475e-01 91 2019 1 3.56896e+01 1.26579e+00 143 2019 2 4.17164e+01 3.35495e+00 70 2019 3 5.11354e+01 2.64340e+00 157 2019 4 5.82581e+01 1.66085e+00 69 2019 5 6.19375e+01 1.26163e-01 30 2019 6 6.27234e+01 7.94088e-02 48 2019 7 6.12805e+01 2.63582e-01 51 2019 8 5.90632e+01 9.18919e-03 16 2019 9 5.26105e+01 9.22703e-01 45 2019 10 4.45148e+01 2.00459e+00 132 2019 11 3.69892e+01 2.03401e+00 150 2019 12 3.34411e+01 4.04447e-01 109 2020 1 3.58722e+01 1.69465e+00 185 2020 2 4.29260e+01 2.71353e+00 92 2020 3 5.17473e+01 1.96570e+00 114 2020 4 5.75807e+01 1.87395e+00 51 2020 5 6.12624e+01 5.16149e-01 59 2020 6 6.26333e+01 4.79032e-02 40 2020 7 6.20716e+01 4.69446e-01 72 2020 8 5.90467e+01 8.47335e-01 79 2020 9 5.28907e+01 2.59471e+00 48 2020 10 4.59334e+01 2.78290e+00 80 2020 11 3.48228e+01 2.75701e-01 45 2020 12 3.33334e+01 3.68878e-01 167 2021 1 3.58096e+01 1.68217e+00 160 2021 2 4.22499e+01 2.73523e+00 77 2021 3 5.06450e+01 2.01947e+00 97 2021 4 5.72852e+01 8.08758e-01 48 2021 5 6.12433e+01 6.26720e-01 38 2021 6 nan nan 0 2021 7 6.15337e+01 5.78798e-01 88 2021 8 5.75262e+01 9.02779e-01 31 2021 9 5.23342e+01 1.90713e+00 72 2021 10 4.49445e+01 1.77917e+00 19 2021 11 3.73503e+01 2.17493e+00 137 2021 12 3.35011e+01 4.77657e-01 187 2022 1 3.59788e+01 1.61030e+00 141 2022 2 4.26232e+01 2.74184e+00 112 2022 3 4.95142e+01 2.30867e+00 36 2022 4 5.99670e+01 3.16227e-03 16 2022 5 6.15332e+01 6.15727e-01 128 2022 6 6.25117e+01 2.55476e-01 90 2022 7 6.21534e+01 8.20767e-03 16 2022 8 5.80727e+01 1.53731e+00 69 2022 9 5.35648e+01 1.69011e+00 73 2022 10 4.41157e+01 2.55371e+00 83 2022 11 3.70227e+01 2.02399e+00 67 2022 12 3.33414e+01 2.56981e-01 120 2023 1 3.53908e+01 1.43331e+00 176 2023 2 4.36101e+01 2.69378e+00 160 2023 3 4.99322e+01 2.68411e+00 70 2023 4 5.90771e+01 1.42807e-01 17 2023 5 6.10365e+01 4.95006e-01 80 2023 6 6.26590e+01 4.23333e-02 26 2023 7 6.22648e+01 1.67330e-01 23 2023 8 5.89409e+01 1.94032e-02 16 2023 9 5.38957e+01 8.60902e-01 50 2023 10 4.44047e+01 1.92058e+00 80 2023 11 3.72069e+01 2.16391e+00 108 2023 12 3.32283e+01 5.27015e-01 78 2024 1 3.80725e+01 9.69281e-01 52 2024 2 4.38516e+01 1.95305e+00 110 2024 3 5.13967e+01 2.44096e+00 33 2024 4 nan nan 0