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 6.14146e+01 7.75576e-01 64 2002 8 5.75839e+01 7.58443e-01 96 2002 9 5.01623e+01 2.29779e+00 144 2002 10 4.39712e+01 2.25656e+00 176 2002 11 3.41753e+01 2.08278e+00 237 2002 12 2.95592e+01 5.23906e-01 168 2003 1 3.16754e+01 1.46773e+00 231 2003 2 3.95583e+01 2.48120e+00 144 2003 3 5.00110e+01 1.75792e+00 61 2003 4 5.76763e+01 1.94018e+00 177 2003 5 6.19667e+01 1.23786e+00 64 2003 6 6.31027e+01 1.02454e-01 48 2003 7 6.18154e+01 1.09271e-01 32 2003 8 5.63519e+01 1.08792e+00 74 2003 9 5.21248e+01 2.17981e+00 176 2003 10 4.19557e+01 2.72712e+00 208 2003 11 3.39778e+01 2.03760e+00 304 2003 12 2.95752e+01 4.98493e-01 224 2004 1 3.23403e+01 1.67070e+00 107 2004 2 4.20472e+01 1.54821e+00 64 2004 3 4.95696e+01 2.22384e+00 192 2004 4 5.72046e+01 2.14078e+00 144 2004 5 6.19248e+01 8.34071e-01 154 2004 6 6.30953e+01 7.22312e-02 108 2004 7 6.21902e+01 2.05812e-01 64 2004 8 5.69310e+01 1.72656e+00 90 2004 9 5.12260e+01 2.72567e+00 144 2004 10 4.19538e+01 2.87806e+00 138 2004 11 3.38677e+01 2.24292e+00 192 2004 12 2.93142e+01 1.81435e-01 138 2005 1 3.24865e+01 1.65434e+00 208 2005 2 3.97595e+01 2.25975e+00 140 2005 3 4.92462e+01 3.01628e+00 192 2005 4 5.69963e+01 1.95076e+00 66 2005 5 6.16275e+01 7.84214e-01 160 2005 6 6.31322e+01 2.02832e-01 112 2005 7 6.16860e+01 6.34134e-01 96 2005 8 5.85993e+01 1.69524e+00 18 2005 9 5.22963e+01 2.58128e+00 80 2005 10 4.19134e+01 2.73021e+00 240 2005 11 3.41575e+01 1.95606e+00 240 2005 12 2.95953e+01 5.11891e-01 208 2006 1 3.19831e+01 1.81251e+00 172 2006 2 3.92131e+01 2.32806e+00 169 2006 3 4.90044e+01 2.85867e+00 287 2006 4 5.73461e+01 1.94161e+00 192 2006 5 6.18899e+01 7.40877e-01 169 2006 6 6.28997e+01 3.59997e-01 112 2006 7 6.19622e+01 6.62665e-01 127 2006 8 5.86441e+01 1.13252e+00 143 2006 9 5.05199e+01 2.46977e+00 154 2006 10 4.26536e+01 3.20366e+00 224 2006 11 3.42092e+01 2.08749e+00 208 2006 12 2.95709e+01 4.59055e-01 123 2007 1 3.19652e+01 1.76562e+00 91 2007 2 4.07797e+01 2.28241e+00 215 2007 3 4.93963e+01 2.61062e+00 316 2007 4 5.75434e+01 2.20789e+00 187 2007 5 6.15403e+01 8.08864e-01 144 2007 6 6.31136e+01 1.86511e-01 112 2007 7 6.15636e+01 6.78246e-01 123 2007 8 5.70788e+01 1.56622e+00 128 2007 9 5.04445e+01 2.53545e+00 176 2007 10 4.49032e+01 1.46799e+00 147 2007 11 3.45654e+01 1.94319e+00 285 2007 12 2.96756e+01 4.62680e-01 160 2008 1 3.16483e+01 1.92958e+00 228 2008 2 3.93442e+01 2.80183e+00 272 2008 3 5.01623e+01 2.61720e+00 220 2008 4 5.83117e+01 1.31819e+00 192 2008 5 6.20764e+01 8.69019e-01 144 2008 6 6.31302e+01 1.09430e-01 115 2008 7 6.20437e+01 1.51268e-01 32 2008 8 5.79813e+01 1.80226e+00 64 2008 9 5.09151e+01 2.24778e+00 145 2008 10 4.18189e+01 2.89792e+00 272 2008 11 3.40562e+01 1.82900e+00 265 2008 12 2.97874e+01 5.16089e-01 195 2009 1 3.26992e+01 1.83140e+00 160 2009 2 3.96903e+01 2.47534e+00 239 2009 3 4.88676e+01 2.69738e+00 176 2009 4 5.79229e+01 1.95881e+00 138 2009 5 6.17477e+01 9.65676e-01 80 2009 6 6.31302e+01 1.34850e-01 66 2009 7 6.22899e+01 6.83037e-01 96 2009 8 5.73692e+01 1.27949e+00 112 2009 9 5.19889e+01 2.13450e+00 180 2009 10 4.22594e+01 2.79098e+00 221 2009 11 3.40429e+01 1.93392e+00 192 2009 12 2.95374e+01 3.88924e-01 64 2010 1 3.18722e+01 1.77827e+00 208 2010 2 4.01878e+01 2.46010e+00 232 2010 3 4.86801e+01 3.31177e+00 189 2010 4 5.68818e+01 1.79554e+00 237 2010 5 6.19119e+01 8.70451e-01 144 2010 6 6.30401e+01 1.06551e-01 174 2010 7 6.12849e+01 7.43055e-01 80 2010 8 5.88986e+01 1.24363e+00 65 2010 9 5.15144e+01 2.13731e+00 224 2010 10 4.26927e+01 2.78147e+00 320 2010 11 3.36794e+01 1.90530e+00 288 2010 12 2.97511e+01 5.27210e-01 213 2011 1 3.22864e+01 1.87529e+00 208 2011 2 4.03111e+01 1.26828e+00 147 2011 3 4.87631e+01 2.45862e+00 216 2011 4 5.68377e+01 1.76096e+00 208 2011 5 6.16083e+01 7.96842e-01 214 2011 6 6.32539e+01 9.62534e-02 138 2011 7 6.12029e+01 1.00084e+00 80 2011 8 5.74515e+01 1.39773e+00 176 2011 9 5.09269e+01 2.48890e+00 163 2011 10 4.24354e+01 2.94714e+00 288 2011 11 3.46509e+01 2.07698e+00 208 2011 12 2.96045e+01 5.81249e-01 283 2012 1 3.19668e+01 1.97358e+00 224 2012 2 3.97875e+01 1.57649e+00 74 2012 3 4.95563e+01 2.22392e+00 208 2012 4 5.76670e+01 1.94572e+00 244 2012 5 6.14508e+01 8.95582e-01 143 2012 6 6.32182e+01 1.09469e-01 96 2012 7 6.20007e+01 5.41804e-01 110 2012 8 5.72821e+01 1.46727e+00 80 2012 9 5.11872e+01 2.52775e+00 127 2012 10 4.16784e+01 2.50603e+00 208 2012 11 3.41731e+01 2.14282e+00 231 2012 12 2.97114e+01 4.29223e-01 112 2013 1 3.33069e+01 1.34708e+00 118 2013 2 3.93776e+01 2.35165e+00 144 2013 3 4.94371e+01 2.88506e+00 223 2013 4 5.82098e+01 1.77676e+00 96 2013 5 6.23655e+01 4.35366e-01 84 2013 6 6.30657e+01 1.01699e-01 105 2013 7 6.16877e+01 1.17350e-01 32 2013 8 5.71452e+01 1.24166e+00 43 2013 9 5.13635e+01 2.19187e+00 171 2013 10 4.22142e+01 2.83395e+00 192 2013 11 3.42219e+01 2.28870e+00 112 2013 12 2.94084e+01 3.66784e-01 172 2014 1 3.19735e+01 1.19511e+00 128 2014 2 4.03840e+01 2.03271e+00 164 2014 3 4.92886e+01 2.69459e+00 180 2014 4 5.70098e+01 1.99506e+00 128 2014 5 6.14664e+01 7.44453e-01 124 2014 6 6.30808e+01 1.33036e-01 103 2014 7 6.15822e+01 7.64929e-01 99 2014 8 5.78022e+01 1.72583e+00 164 2014 9 5.15125e+01 1.83089e+00 158 2014 10 4.22710e+01 2.70115e+00 304 2014 11 3.38932e+01 2.34119e+00 208 2014 12 2.96428e+01 3.46866e-01 224 2015 1 3.28027e+01 1.73351e+00 180 2015 2 3.85896e+01 1.68508e+00 176 2015 3 4.98441e+01 2.29432e+00 112 2015 4 5.55734e+01 2.00076e+00 64 2015 5 6.17516e+01 8.33193e-01 192 2015 6 6.30384e+01 1.46858e-01 127 2015 7 6.19952e+01 6.83297e-01 70 2015 8 5.85886e+01 1.14939e+00 82 2015 9 5.16290e+01 1.97771e+00 135 2015 10 4.16656e+01 2.31894e+00 211 2015 11 3.39475e+01 2.23119e+00 179 2015 12 2.96218e+01 3.09986e-01 128 2016 1 3.24940e+01 1.34424e+00 192 2016 2 3.98108e+01 2.57939e+00 272 2016 3 4.86488e+01 2.79727e+00 240 2016 4 5.74822e+01 1.94023e+00 108 2016 5 6.16136e+01 7.94518e-01 129 2016 6 6.31112e+01 1.52818e-01 163 2016 7 6.19371e+01 7.95535e-01 195 2016 8 5.69594e+01 1.14150e+00 157 2016 9 5.03926e+01 2.50060e+00 242 2016 10 4.16463e+01 2.95184e+00 272 2016 11 3.42176e+01 1.82819e+00 188 2016 12 2.96290e+01 5.74231e-01 192 2017 1 3.23076e+01 1.88428e+00 183 2017 2 3.98038e+01 2.61910e+00 271 2017 3 4.94824e+01 2.53396e+00 249 2017 4 5.70253e+01 1.82336e+00 144 2017 5 6.18153e+01 8.22463e-01 145 2017 6 6.29867e+01 1.92314e-01 48 2017 7 6.17331e+01 8.65443e-01 96 2017 8 5.81524e+01 1.06563e+00 72 2017 9 5.07462e+01 2.51114e+00 192 2017 10 4.15294e+01 2.67828e+00 247 2017 11 3.38562e+01 2.00599e+00 320 2017 12 2.96480e+01 4.07077e-01 187 2018 1 3.21432e+01 1.83047e+00 265 2018 2 4.11414e+01 2.22812e+00 80 2018 3 4.81887e+01 2.82710e+00 224 2018 4 5.72657e+01 2.00615e+00 174 2018 5 6.12661e+01 8.03036e-01 151 2018 6 6.31351e+01 8.82315e-02 71 2018 7 6.14984e+01 6.09725e-01 96 2018 8 5.72484e+01 1.83599e+00 71 2018 9 5.10869e+01 1.89544e+00 193 2018 10 4.23189e+01 2.98747e+00 333 2018 11 3.36591e+01 1.79441e+00 112 2018 12 2.96075e+01 4.32501e-01 142 2019 1 3.21330e+01 1.70428e+00 207 2019 2 4.03631e+01 2.67116e+00 64 2019 3 4.87150e+01 2.67716e+00 242 2019 4 5.79812e+01 1.65043e+00 96 2019 5 6.17949e+01 9.11962e-01 216 2019 6 6.31663e+01 7.66466e-02 73 2019 7 6.15599e+01 9.51625e-01 105 2019 8 5.77630e+01 1.74094e+00 180 2019 9 5.12234e+01 2.47463e+00 270 2019 10 4.35134e+01 2.60622e+00 155 2019 11 3.36642e+01 2.12556e+00 160 2019 12 2.96626e+01 4.89684e-01 112 2020 1 3.15536e+01 1.80475e+00 134 2020 2 4.04058e+01 3.26762e+00 160 2020 3 4.88656e+01 2.54184e+00 160 2020 4 5.69845e+01 2.34017e+00 96 2020 5 6.13464e+01 8.17759e-01 116 2020 6 6.31636e+01 1.07051e-01 96 2020 7 6.14816e+01 1.30046e-01 37 2020 8 5.92394e+01 7.06081e-01 58 2020 9 5.04635e+01 2.26716e+00 92 2020 10 4.21119e+01 2.69368e+00 200 2020 11 3.42094e+01 1.88751e+00 240 2020 12 2.94911e+01 4.14560e-01 186 2021 1 3.18135e+01 2.03907e+00 67 2021 2 4.12324e+01 2.56275e+00 128 2021 3 4.82917e+01 1.85809e+00 144 2021 4 5.70656e+01 2.09782e+00 152 2021 5 6.21679e+01 6.33079e-01 176 2021 6 6.30895e+01 4.41438e-02 47 2021 7 6.16542e+01 6.76109e-01 64 2021 8 5.77304e+01 9.74259e-01 126 2021 9 5.14154e+01 2.83513e+00 163 2021 10 4.12363e+01 2.62158e+00 60 2021 11 3.35385e+01 1.85397e+00 247 2021 12 2.93863e+01 4.32155e-01 160 2022 1 3.19184e+01 1.84373e+00 200 2022 2 4.06900e+01 2.48610e+00 181 2022 3 4.94300e+01 3.16763e+00 192 2022 4 5.90658e+01 3.51421e-01 62 2022 5 6.18942e+01 9.19150e-01 92 2022 6 6.30909e+01 1.85631e-01 186 2022 7 6.15661e+01 8.91327e-01 128 2022 8 5.71812e+01 1.80234e+00 110 2022 9 5.03719e+01 1.73933e+00 174 2022 10 4.28105e+01 2.40014e+00 318 2022 11 3.55286e+01 1.02333e+00 128 2022 12 2.95848e+01 4.92999e-01 240 2023 1 3.19142e+01 1.62235e+00 228 2023 2 3.92318e+01 2.30924e+00 160 2023 3 4.84451e+01 2.02482e+00 176 2023 4 5.79198e+01 1.47184e+00 96 2023 5 6.12141e+01 7.68682e-01 112 2023 6 6.30885e+01 1.43096e-01 128 2023 7 6.17215e+01 1.16585e+00 81 2023 8 5.73210e+01 1.42371e+00 160 2023 9 5.14186e+01 1.57177e+00 144 2023 10 4.17523e+01 3.02462e+00 272 2023 11 3.42331e+01 2.18048e+00 227 2023 12 2.92959e+01 1.63587e-01 48 2024 1 3.18982e+01 2.13286e+00 84 2024 2 4.11920e+01 1.87080e+00 128 2024 3 5.10936e+01 2.54279e+00 129 2024 4 nan nan 0