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 1.54978e+00 2.16829e-01 16 2002 8 2.13781e+00 1.61933e-01 16 2002 9 2.96590e+00 1.35712e+00 39 2002 10 2.71983e+00 8.89494e-01 51 2002 11 2.22427e+00 9.12795e-01 167 2002 12 2.91523e+00 1.27984e+00 130 2003 1 2.15297e+00 7.59199e-01 195 2003 2 1.85403e+00 5.57837e-01 96 2003 3 3.53612e+00 7.96946e-01 34 2003 4 2.45348e+00 7.61529e-01 127 2003 5 1.37357e+00 2.61562e-01 32 2003 6 1.75706e+00 5.38485e-01 52 2003 7 1.80951e+00 1.37261e-01 32 2003 8 nan nan 0 2003 9 2.83899e+00 9.04487e-01 63 2003 10 1.84092e+00 7.35019e-01 147 2003 11 2.78331e+00 8.90322e-01 177 2003 12 2.63755e+00 7.59750e-01 134 2004 1 1.53237e+00 7.93829e-01 90 2004 2 2.04126e+00 2.81496e-01 48 2004 3 2.40682e+00 1.17237e+00 161 2004 4 2.50872e+00 3.50168e-01 84 2004 5 2.34908e+00 3.10327e-01 60 2004 6 2.21634e+00 6.05271e-01 24 2004 7 2.23381e+00 5.54555e-01 18 2004 8 1.37617e+00 6.57450e-01 33 2004 9 2.18491e+00 5.63247e-01 62 2004 10 2.89839e+00 9.30914e-01 85 2004 11 2.42112e+00 1.15841e+00 99 2004 12 1.94730e+00 4.39802e-01 98 2005 1 1.91669e+00 8.69644e-01 104 2005 2 2.12447e+00 6.12793e-01 126 2005 3 2.81047e+00 1.15213e+00 146 2005 4 4.53217e+00 1.24556e+00 54 2005 5 1.91849e+00 5.87634e-01 55 2005 6 1.48504e+00 3.41420e-01 39 2005 7 2.62578e+00 1.45278e+00 26 2005 8 2.18326e+00 1.05305e+00 54 2005 9 6.45386e-01 1.58443e-01 15 2005 10 1.51090e+00 5.29085e-01 168 2005 11 1.64802e+00 7.07776e-01 114 2005 12 1.91330e+00 4.86307e-01 97 2006 1 3.09611e+00 1.07140e+00 76 2006 2 2.70872e+00 1.11339e+00 159 2006 3 3.07391e+00 1.22035e+00 168 2006 4 1.96931e+00 4.21087e-01 100 2006 5 2.31783e+00 4.86873e-01 90 2006 6 2.42225e+00 1.91982e-01 15 2006 7 2.23177e+00 3.61543e-01 47 2006 8 1.84218e+00 5.74570e-01 54 2006 9 2.40773e+00 9.56973e-01 105 2006 10 2.33846e+00 7.67971e-01 161 2006 11 2.16387e+00 6.83877e-01 173 2006 12 4.11404e+00 8.01809e-01 76 2007 1 2.47915e+00 7.70459e-01 76 2007 2 1.95993e+00 6.61243e-01 117 2007 3 2.35104e+00 6.76769e-01 181 2007 4 2.99955e+00 1.39951e+00 133 2007 5 2.46569e+00 1.07580e+00 33 2007 6 1.71032e+00 1.56219e-01 10 2007 7 1.90282e+00 9.89644e-01 62 2007 8 2.28730e+00 7.17943e-01 51 2007 9 3.99684e+00 9.15509e-01 72 2007 10 2.95868e+00 3.13104e-01 90 2007 11 3.22069e+00 6.09327e-01 170 2007 12 3.91153e+00 6.47400e-01 54 2008 1 3.39857e+00 1.42357e+00 142 2008 2 2.40911e+00 7.08427e-01 181 2008 3 3.48477e+00 1.23475e+00 145 2008 4 2.80574e+00 1.05688e+00 93 2008 5 2.89474e+00 5.22928e-01 132 2008 6 2.49441e+00 9.90369e-01 39 2008 7 2.30528e+00 5.75927e-01 24 2008 8 3.33028e+00 8.42586e-02 4 2008 9 2.10324e+00 4.54393e-01 93 2008 10 2.88706e+00 9.40955e-01 198 2008 11 2.22930e+00 7.01583e-01 163 2008 12 2.53069e+00 1.07605e+00 129 2009 1 3.03416e+00 1.69762e+00 143 2009 2 2.35691e+00 6.52083e-01 160 2009 3 2.12188e+00 1.13994e+00 131 2009 4 3.34630e+00 2.40061e-01 34 2009 5 2.42038e+00 5.09925e-01 72 2009 6 nan nan 0 2009 7 1.78844e+00 1.23604e-01 7 2009 8 2.01218e+00 3.94731e-01 37 2009 9 1.56689e+00 2.87045e-01 40 2009 10 2.56062e+00 8.38541e-01 138 2009 11 2.21501e+00 8.01064e-01 126 2009 12 3.70193e+00 2.29985e+00 37 2010 1 3.09096e+00 8.19875e-01 93 2010 2 3.63346e+00 2.49523e+00 72 2010 3 2.73698e+00 8.13100e-01 106 2010 4 3.43005e+00 1.02299e+00 102 2010 5 2.58732e+00 1.39253e+00 64 2010 6 1.97694e+00 5.10228e-01 67 2010 7 1.65302e+00 1.10860e-01 9 2010 8 nan nan 0 2010 9 3.32863e+00 1.11489e+00 130 2010 10 3.41987e+00 1.11584e+00 205 2010 11 3.79804e+00 8.81109e-01 224 2010 12 3.38936e+00 9.74126e-01 172 2011 1 2.10931e+00 6.01429e-01 130 2011 2 2.39261e+00 8.52598e-01 119 2011 3 2.35885e+00 1.33284e+00 112 2011 4 2.28145e+00 4.65596e-01 124 2011 5 2.04279e+00 5.57305e-01 71 2011 6 2.72618e+00 4.42964e-01 47 2011 7 2.32210e+00 4.41384e-01 60 2011 8 3.16707e+00 2.68891e-01 38 2011 9 2.83021e+00 9.58169e-01 81 2011 10 4.17152e+00 1.22297e+00 232 2011 11 4.40721e+00 1.17989e+00 130 2011 12 2.54130e+00 1.24232e+00 186 2012 1 2.66629e+00 8.49638e-01 166 2012 2 1.99718e+00 8.92471e-01 32 2012 3 2.58591e+00 1.06824e+00 120 2012 4 1.84210e+00 5.41071e-01 78 2012 5 3.10845e+00 6.88080e-01 56 2012 6 2.79032e+00 2.01965e-01 15 2012 7 1.05396e+00 3.41279e-01 47 2012 8 1.35967e+00 8.97077e-02 15 2012 9 1.38404e+00 6.82299e-01 55 2012 10 2.45128e+00 9.77672e-01 181 2012 11 1.14324e+00 2.68586e-01 137 2012 12 1.00492e+00 3.43212e-01 76 2013 1 2.62582e+00 8.86924e-01 96 2013 2 2.59934e+00 1.25759e+00 85 2013 3 3.01671e+00 9.85670e-01 82 2013 4 3.50643e+00 7.03703e-01 31 2013 5 2.69611e+00 1.37015e+00 46 2013 6 4.37878e+00 1.74139e-01 16 2013 7 2.24666e+00 1.40992e-01 5 2013 8 1.88679e+00 6.27903e-01 37 2013 9 1.52825e+00 3.94378e-01 101 2013 10 1.40786e+00 3.57136e-01 130 2013 11 1.66937e+00 5.25684e-01 94 2013 12 1.34410e+00 3.15194e-01 134 2014 1 2.37295e+00 1.08486e+00 94 2014 2 1.17266e+00 4.31849e-01 142 2014 3 1.93809e+00 3.69457e-01 100 2014 4 3.25644e+00 1.23395e+00 50 2014 5 1.85114e+00 5.79903e-01 68 2014 6 1.87187e+00 2.93441e-01 50 2014 7 1.92284e+00 9.43933e-02 28 2014 8 1.41054e+00 5.48472e-01 37 2014 9 1.23934e+00 4.26764e-01 89 2014 10 1.44529e+00 7.43629e-01 238 2014 11 2.01404e+00 7.00235e-01 192 2014 12 1.50535e+00 7.57033e-01 137 2015 1 2.24328e+00 7.10054e-01 118 2015 2 1.45513e+00 5.87196e-01 123 2015 3 1.80804e+00 7.15107e-01 71 2015 4 1.72751e+00 5.25767e-01 40 2015 5 1.92004e+00 3.91702e-01 80 2015 6 1.20775e+00 4.46174e-01 14 2015 7 1.76539e+00 3.41179e-01 26 2015 8 1.87319e+00 4.14966e-01 34 2015 9 1.95268e+00 1.54504e+00 42 2015 10 2.96463e+00 7.45128e-01 144 2015 11 2.62580e+00 8.05404e-01 72 2015 12 1.35820e+00 4.79297e-01 88 2016 1 3.34298e+00 1.63714e+00 60 2016 2 3.07345e+00 7.77064e-01 188 2016 3 3.20282e+00 1.20101e+00 133 2016 4 2.62019e+00 1.83784e-01 44 2016 5 1.86566e+00 4.44881e-01 51 2016 6 1.81368e+00 4.15338e-01 100 2016 7 1.49570e+00 3.23580e-01 127 2016 8 1.65917e+00 2.30374e-01 94 2016 9 1.72073e+00 6.75130e-01 81 2016 10 2.43814e+00 8.53852e-01 234 2016 11 2.80812e+00 1.13430e+00 157 2016 12 1.96993e+00 8.16085e-01 108 2017 1 2.45434e+00 9.01805e-01 127 2017 2 3.10284e+00 1.23266e+00 143 2017 3 3.59178e+00 1.49407e+00 169 2017 4 2.10115e+00 6.12764e-01 76 2017 5 2.25089e+00 9.14539e-01 74 2017 6 1.69364e+00 2.02903e-01 37 2017 7 1.82735e+00 3.77156e-01 35 2017 8 2.18759e+00 3.89241e-01 32 2017 9 1.44927e+00 2.33765e-01 48 2017 10 2.55237e+00 9.39868e-01 193 2017 11 2.26166e+00 8.60916e-01 246 2017 12 1.44798e+00 5.98487e-01 73 2018 1 1.96324e+00 1.09524e+00 175 2018 2 1.35764e+00 3.71280e-01 64 2018 3 2.31635e+00 8.59534e-01 178 2018 4 1.88871e+00 5.08595e-01 119 2018 5 2.21112e+00 2.43211e-01 52 2018 6 2.14882e+00 2.52723e-01 29 2018 7 1.57794e+00 5.79780e-01 15 2018 8 1.12930e+00 9.96839e-02 16 2018 9 1.33547e+00 2.30946e-01 105 2018 10 2.06306e+00 8.87266e-01 150 2018 11 1.95203e+00 7.78847e-01 78 2018 12 2.99063e+00 6.55236e-01 63 2019 1 3.76162e+00 1.33623e+00 100 2019 2 2.98164e+00 1.33342e+00 42 2019 3 2.77024e+00 5.64519e-01 116 2019 4 3.08397e+00 9.11730e-01 80 2019 5 2.34245e+00 6.30561e-01 114 2019 6 3.27782e+00 6.63955e-01 21 2019 7 1.50282e+00 7.29618e-01 75 2019 8 1.16532e+00 4.33899e-01 39 2019 9 2.77110e+00 1.09968e+00 113 2019 10 3.04546e+00 9.68117e-01 131 2019 11 3.26605e+00 5.82248e-01 140 2019 12 4.20627e+00 5.66692e-01 48 2020 1 2.79907e+00 9.15310e-01 84 2020 2 3.75641e+00 1.91932e+00 122 2020 3 4.23206e+00 1.44683e+00 79 2020 4 2.59083e+00 6.47768e-01 64 2020 5 2.44054e+00 5.33944e-01 80 2020 6 1.49057e+00 4.02826e-01 60 2020 7 nan nan 0 2020 8 1.96571e+00 6.26404e-01 30 2020 9 1.75496e+00 4.07089e-01 32 2020 10 3.25871e+00 9.42124e-01 87 2020 11 2.95803e+00 1.15729e+00 162 2020 12 1.72331e+00 5.89885e-01 221 2021 1 1.92240e+00 6.72888e-01 64 2021 2 2.60311e+00 7.87245e-01 80 2021 3 2.14810e+00 3.41978e-01 120 2021 4 2.02386e+00 8.57477e-01 111 2021 5 1.84083e+00 7.28321e-01 130 2021 6 1.61495e+00 2.05398e-01 46 2021 7 1.17571e+00 4.80397e-01 20 2021 8 2.05147e+00 1.33421e+00 68 2021 9 1.91427e+00 7.68848e-01 35 2021 10 6.76750e-01 4.17622e-02 18 2021 11 2.05657e+00 7.54934e-01 240 2021 12 1.67864e+00 4.84566e-01 89 2022 1 2.77230e+00 6.76537e-01 108 2022 2 3.10791e+00 7.22008e-01 118 2022 3 3.12554e+00 1.02506e+00 159 2022 4 3.78824e+00 3.63940e-01 20 2022 5 2.13550e+00 5.52997e-01 33 2022 6 1.60625e+00 4.60069e-01 59 2022 7 2.07948e+00 1.05088e+00 67 2022 8 2.48382e+00 4.66926e-01 36 2022 9 1.61682e+00 5.56483e-01 84 2022 10 2.90552e+00 5.85721e-01 217 2022 11 2.35878e+00 8.94282e-01 137 2022 12 1.84937e+00 1.00767e+00 191 2023 1 1.68736e+00 6.52021e-01 221 2023 2 3.03861e+00 1.13830e+00 138 2023 3 3.03954e+00 8.29345e-01 120 2023 4 2.23979e+00 9.50833e-01 71 2023 5 2.74400e+00 1.18676e+00 60 2023 6 2.35139e+00 3.97032e-01 78 2023 7 3.18984e+00 1.09515e-01 16 2023 8 3.10914e+00 9.69966e-01 60 2023 9 2.65393e+00 4.73171e-01 107 2023 10 2.68721e+00 7.55300e-01 177 2023 11 3.03927e+00 1.37808e+00 112 2023 12 1.37939e+00 6.18363e-01 50 2024 1 1.23310e+00 3.94050e-01 64 2024 2 2.99511e+00 1.36741e+00 144 2024 3 2.16556e+00 7.07530e-01 78 2024 4 nan nan 0