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 3.80074e+00 5.38363e-02 16 2002 8 3.74838e+00 3.34174e-01 36 2002 9 9.69624e+00 3.83593e+00 61 2002 10 7.59611e+00 8.35218e-01 30 2002 11 9.08639e+00 1.81327e+00 68 2002 12 7.19909e+00 1.28677e+00 68 2003 1 8.22947e+00 2.31666e+00 165 2003 2 4.48003e+00 8.14054e-01 103 2003 3 nan nan 0 2003 4 9.27858e+00 1.02180e+00 52 2003 5 8.82171e+00 3.68320e-01 11 2003 6 7.62807e+00 2.84018e-01 16 2003 7 nan nan 0 2003 8 1.11121e+01 1.35942e+00 16 2003 9 8.44722e+00 2.04290e+00 79 2003 10 4.45663e+00 8.42274e-01 172 2003 11 4.16750e+00 8.84862e-01 163 2003 12 5.49780e+00 7.62104e-01 130 2004 1 4.83869e+00 1.17517e+00 69 2004 2 7.14000e+00 1.98250e+00 65 2004 3 6.48822e+00 1.39741e+00 117 2004 4 3.51872e+00 3.93994e-01 48 2004 5 4.80581e+00 1.49918e+00 48 2004 6 nan nan 0 2004 7 1.03077e+01 1.93979e+00 28 2004 8 9.77107e+00 2.12003e-01 16 2004 9 8.07903e+00 2.69085e+00 88 2004 10 8.00876e+00 1.63185e+00 72 2004 11 1.07525e+01 1.53198e+00 69 2004 12 1.00230e+01 1.36711e+00 96 2005 1 8.70730e+00 1.71889e+00 68 2005 2 6.47448e+00 7.02375e-01 80 2005 3 6.61853e+00 1.02438e+00 121 2005 4 nan nan 0 2005 5 nan nan 0 2005 6 8.41523e+00 3.77831e-01 32 2005 7 9.26250e+00 4.25744e+00 41 2005 8 nan nan 0 2005 9 7.84617e+00 1.53953e+00 31 2005 10 4.40625e+00 1.07711e+00 164 2005 11 4.84412e+00 1.59719e+00 150 2005 12 6.04014e+00 1.09575e+00 65 2006 1 7.34424e+00 1.60270e+00 77 2006 2 6.71101e+00 1.13317e+00 138 2006 3 5.75850e+00 9.41529e-01 160 2006 4 4.46395e+00 1.20468e+00 54 2006 5 4.89769e+00 5.36383e-01 112 2006 6 4.38683e+00 5.56634e-01 27 2006 7 3.19812e+00 7.21888e-02 24 2006 8 4.48746e+00 2.69296e-01 25 2006 9 4.60230e+00 5.79756e-01 93 2006 10 4.19778e+00 7.45889e-01 146 2006 11 4.60300e+00 1.56413e+00 161 2006 12 3.92505e+00 1.57265e+00 110 2007 1 5.16171e+00 6.74473e-01 66 2007 2 4.52265e+00 4.00930e-01 61 2007 3 4.07509e+00 9.67291e-01 112 2007 4 5.01107e+00 1.11053e+00 80 2007 5 3.82524e+00 2.95057e-01 32 2007 6 5.64340e+00 1.73320e-01 16 2007 7 3.73773e+00 1.41743e-01 20 2007 8 3.81542e+00 3.17044e-01 48 2007 9 2.21111e+00 1.58211e+00 25 2007 10 4.90571e+00 3.70869e+00 84 2007 11 5.34515e+00 1.50464e+00 124 2007 12 7.50990e+00 1.39248e+00 46 2008 1 7.47588e+00 1.11174e+00 64 2008 2 8.77054e+00 1.13409e+00 52 2008 3 8.39082e+00 1.66563e+00 106 2008 4 8.93548e+00 8.60960e-02 16 2008 5 4.98434e+00 3.90320e-01 18 2008 6 3.40545e+00 3.39498e-01 48 2008 7 4.64463e+00 3.82599e-02 16 2008 8 4.72950e+00 1.36677e+00 46 2008 9 6.03199e+00 1.87901e+00 68 2008 10 3.73613e+00 1.47663e+00 162 2008 11 3.56987e+00 1.51255e+00 205 2008 12 6.40695e+00 2.80644e+00 94 2009 1 6.37262e+00 1.63220e+00 85 2009 2 5.99238e+00 1.77495e+00 108 2009 3 4.45570e+00 1.62608e+00 48 2009 4 1.46577e+01 5.67484e-01 6 2009 5 1.12369e+01 4.27160e-01 5 2009 6 1.21000e+01 1.42173e+00 30 2009 7 nan nan 0 2009 8 6.44201e+00 3.01942e-01 16 2009 9 nan nan 0 2009 10 8.53690e+00 6.27880e-01 50 2009 11 9.96702e+00 2.11501e+00 44 2009 12 1.30150e+01 4.47472e-01 6 2010 1 9.79052e+00 1.63568e+00 72 2010 2 1.12624e+01 7.03721e-01 72 2010 3 9.97475e+00 6.73656e-01 74 2010 4 5.68900e+00 9.60672e-01 78 2010 5 7.15487e+00 1.44232e+00 36 2010 6 6.85324e+00 3.52701e-01 72 2010 7 5.13189e+00 1.64148e+00 25 2010 8 nan nan 0 2010 9 4.68277e+00 9.76490e-01 84 2010 10 3.72094e+00 9.61955e-01 214 2010 11 3.59970e+00 6.50815e-01 100 2010 12 4.96107e+00 1.54727e+00 160 2011 1 4.54345e+00 8.58518e-01 179 2011 2 5.64612e+00 4.65328e-01 136 2011 3 6.88568e+00 1.24931e+00 112 2011 4 5.13363e+00 7.28451e-01 78 2011 5 3.36630e+00 4.26162e-01 86 2011 6 3.87864e+00 6.95871e-01 60 2011 7 4.42522e+00 1.53426e+00 64 2011 8 4.87101e+00 2.47546e-01 49 2011 9 6.15469e+00 1.36291e+00 61 2011 10 3.48744e+00 1.14901e+00 157 2011 11 3.46961e+00 7.12502e-01 118 2011 12 3.08652e+00 7.12553e-01 96 2012 1 4.35470e+00 8.71775e-01 165 2012 2 5.11266e+00 9.87710e-01 28 2012 3 5.11250e+00 1.57191e+00 71 2012 4 4.72748e+00 5.96429e-01 81 2012 5 2.89594e+00 2.45884e-01 33 2012 6 4.36453e+00 1.03816e+00 16 2012 7 3.61681e+00 1.17811e+00 36 2012 8 8.63491e+00 0.00000e+00 2 2012 9 7.28433e+00 2.45038e+00 41 2012 10 5.52087e+00 1.83068e+00 160 2012 11 3.41925e+00 1.02708e+00 164 2012 12 3.19133e+00 1.74536e+00 121 2013 1 3.98876e+00 1.04581e+00 51 2013 2 5.86292e+00 2.94563e+00 92 2013 3 7.86381e+00 2.03772e+00 90 2013 4 4.55373e+00 2.19728e-01 32 2013 5 4.63671e+00 1.36925e+00 35 2013 6 4.30605e+00 8.98804e-01 28 2013 7 nan nan 0 2013 8 1.15899e+01 2.73936e-01 16 2013 9 1.04664e+01 5.30898e-01 50 2013 10 6.46718e+00 1.48593e+00 95 2013 11 5.81453e+00 2.04460e+00 154 2013 12 6.86339e+00 7.82675e-01 59 2014 1 8.91668e+00 7.77420e-01 56 2014 2 6.33612e+00 1.85816e+00 88 2014 3 9.00567e+00 3.77997e-01 50 2014 4 9.85731e+00 5.38818e-01 32 2014 5 1.59926e+01 2.47500e-01 4 2014 6 nan nan 0 2014 7 1.00776e+01 1.53949e+00 38 2014 8 6.47938e+00 1.14595e-01 16 2014 9 4.52741e+00 1.02858e+00 50 2014 10 4.14192e+00 1.63071e+00 222 2014 11 4.83429e+00 1.51355e+00 174 2014 12 3.50756e+00 8.35022e-01 128 2015 1 5.65377e+00 1.60821e+00 143 2015 2 6.23909e+00 5.79511e-01 160 2015 3 4.80106e+00 1.15695e+00 71 2015 4 5.48026e+00 9.51817e-02 18 2015 5 6.43422e+00 2.56517e+00 53 2015 6 5.04668e+00 2.24053e-01 17 2015 7 5.74769e+00 1.05633e+00 20 2015 8 3.47473e+00 3.86433e-01 55 2015 9 2.24777e+00 4.23796e-01 29 2015 10 5.80037e+00 1.14830e+00 106 2015 11 7.97000e+00 4.10585e-01 32 2015 12 6.26683e+00 8.47208e-01 60 2016 1 1.02359e+01 3.74288e-01 41 2016 2 1.06446e+01 1.09042e+00 113 2016 3 9.08177e+00 1.57145e+00 67 2016 4 7.03795e+00 2.98626e-01 15 2016 5 5.92919e+00 9.08384e-02 16 2016 6 4.82363e+00 3.42293e-01 39 2016 7 4.02303e+00 9.86568e-01 75 2016 8 1.09800e+01 3.16201e+00 29 2016 9 3.57946e+00 8.31544e-01 64 2016 10 3.35214e+00 2.19201e+00 170 2016 11 2.97490e+00 1.13265e+00 129 2016 12 6.59337e+00 1.64473e+00 74 2017 1 1.04560e+01 6.59476e-01 35 2017 2 9.43195e+00 2.11477e+00 80 2017 3 6.12051e+00 1.50056e+00 108 2017 4 6.36253e+00 1.49760e+00 96 2017 5 4.20345e+00 1.08684e+00 87 2017 6 8.44337e+00 2.03563e-01 16 2017 7 1.25926e+01 2.28569e+00 31 2017 8 1.01838e+01 1.72774e-01 16 2017 9 6.17737e+00 1.79764e+00 60 2017 10 8.84319e+00 1.11235e+00 48 2017 11 5.15717e+00 2.27311e+00 109 2017 12 4.25391e+00 1.18160e+00 98 2018 1 4.83932e+00 1.23932e+00 147 2018 2 9.04244e+00 4.55657e+00 28 2018 3 7.10644e+00 9.80589e-01 100 2018 4 4.75313e+00 6.70050e-01 109 2018 5 3.44169e+00 2.99735e-01 32 2018 6 7.45015e+00 4.40117e-01 32 2018 7 6.33305e+00 2.94991e-01 19 2018 8 7.67439e+00 5.23609e-01 30 2018 9 8.75124e+00 1.31553e+00 39 2018 10 5.12058e+00 1.01067e+00 101 2018 11 8.19195e+00 1.77228e+00 46 2018 12 9.72030e+00 6.51233e-01 49 2019 1 9.15346e+00 1.33740e+00 35 2019 2 5.50932e+00 1.74458e+00 32 2019 3 5.12217e+00 1.72484e+00 66 2019 4 6.14220e+00 1.14641e+00 64 2019 5 5.69701e+00 9.00022e-01 98 2019 6 5.20766e+00 6.80152e-02 14 2019 7 3.92782e+00 2.71927e-01 48 2019 8 2.76730e+00 2.06240e+00 32 2019 9 3.49670e+00 7.90612e-01 87 2019 10 3.33614e+00 9.86587e-01 110 2019 11 3.20097e+00 1.65263e+00 100 2019 12 5.65638e+00 2.80482e+00 56 2020 1 7.92000e+00 1.17807e+00 49 2020 2 8.35321e+00 4.89967e-01 64 2020 3 6.99655e+00 8.27448e-01 96 2020 4 5.19475e+00 8.10452e-01 64 2020 5 4.74673e+00 2.17210e+00 57 2020 6 6.12046e+00 1.08991e+00 26 2020 7 4.29100e+00 2.16935e-01 32 2020 8 4.88437e+00 3.61749e-01 32 2020 9 1.59294e+01 2.98412e-01 16 2020 10 7.82079e+00 1.45344e+00 52 2020 11 4.99281e+00 1.29567e+00 118 2020 12 5.04759e+00 7.43351e-01 144 2021 1 5.20116e+00 7.21656e-01 24 2021 2 7.09819e+00 1.04018e+00 118 2021 3 6.85651e+00 1.28194e+00 96 2021 4 7.23738e+00 1.62372e+00 43 2021 5 5.92816e+00 6.54673e-02 16 2021 6 nan nan 0 2021 7 nan nan 0 2021 8 6.58677e+00 2.46402e-01 14 2021 9 nan nan 0 2021 10 1.16600e+01 2.93656e+00 39 2021 11 4.90855e+00 9.65644e-01 189 2021 12 3.77534e+00 7.00565e-01 54 2022 1 5.34077e+00 6.68563e-01 131 2022 2 5.09351e+00 9.59245e-01 138 2022 3 5.16395e+00 2.33725e+00 116 2022 4 7.57636e+00 3.89357e-01 16 2022 5 7.01612e+00 1.71421e+00 25 2022 6 5.48809e+00 1.36294e+00 51 2022 7 5.13645e+00 1.35146e+00 67 2022 8 8.12186e+00 9.10685e-01 32 2022 9 5.89229e+00 1.71684e+00 90 2022 10 3.67367e+00 1.18520e+00 177 2022 11 3.35287e+00 1.41710e+00 123 2022 12 4.67674e+00 9.40780e-01 114 2023 1 7.32005e+00 9.97587e-01 144 2023 2 7.54046e+00 1.52680e+00 159 2023 3 6.47324e+00 5.38021e-01 31 2023 4 5.12053e+00 6.52998e-01 32 2023 5 3.41193e+00 5.88831e-01 48 2023 6 3.73276e+00 3.44963e+00 29 2023 7 7.02711e+00 9.41986e-01 65 2023 8 5.04341e+00 1.44744e+00 81 2023 9 2.02002e+00 8.30694e-01 67 2023 10 3.30734e+00 1.50842e+00 181 2023 11 2.87705e+00 8.29972e-01 136 2023 12 3.56548e+00 8.33931e-01 58 2024 1 5.32593e+00 1.26444e+00 69 2024 2 5.45645e+00 1.05776e+00 73 2024 3 5.10514e+00 1.64318e+00 64 2024 4 6.18763e+00 2.06042e-01 32