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 3.73474e-01 2.93180e-01 188 2002 8 2.75639e-01 2.88393e-01 147 2002 9 2.46707e-01 2.32828e-01 173 2002 10 1.90334e-01 2.30351e-01 457 2002 11 9.45719e-02 1.79505e-01 174 2002 12 7.57253e-02 1.29286e-01 198 2003 1 2.80632e-02 6.39506e-02 62 2003 2 6.77006e-02 7.24372e-02 202 2003 3 1.19768e-01 1.68606e-01 230 2003 4 2.74860e-01 2.91351e-01 323 2003 5 1.19058e-01 1.77018e-01 248 2003 6 3.67534e-02 6.91910e-02 95 2003 7 2.10943e-01 2.59968e-01 151 2003 8 9.16215e-02 1.57751e-01 54 2003 9 2.11338e-01 2.44145e-01 190 2003 10 3.63016e-02 9.10676e-02 152 2003 11 2.71448e-02 6.66657e-02 62 2003 12 1.70612e-02 3.39542e-02 63 2004 1 1.72065e-01 2.07916e-01 310 2004 2 1.20346e-01 1.73241e-01 296 2004 3 2.57823e-01 3.05671e-01 410 2004 4 1.50021e-01 1.99375e-01 248 2004 5 2.18791e-01 2.84308e-01 153 2004 6 1.31278e-01 1.96999e-01 160 2004 7 3.35351e-02 8.86601e-02 152 2004 8 1.63067e-01 2.13835e-01 97 2004 9 9.72560e-02 1.59815e-01 71 2004 10 2.26050e-01 2.42636e-01 455 2004 11 1.77463e-01 2.05085e-01 489 2004 12 1.64655e-01 2.04335e-01 268 2005 1 9.91634e-02 1.82318e-01 242 2005 2 1.19259e-01 2.02792e-01 153 2005 3 1.96902e-01 2.38471e-01 235 2005 4 6.19501e-02 9.37383e-02 33 2005 5 2.61364e-01 2.52270e-01 238 2005 6 6.21130e-02 1.59606e-01 125 2005 7 3.80711e-01 3.94570e-01 262 2005 8 1.07249e-01 2.08468e-01 103 2005 9 1.91000e-01 2.64209e-01 113 2005 10 6.50987e-02 1.24862e-01 74 2005 11 9.16552e-03 4.52003e-02 221 2005 12 5.92604e-03 1.85251e-02 542 2006 1 9.90930e-02 1.66480e-01 136 2006 2 2.88940e-02 9.67645e-02 207 2006 3 1.31563e-01 2.00881e-01 107 2006 4 1.67721e-01 2.15155e-01 227 2006 5 1.69581e-01 2.25766e-01 130 2006 6 9.96065e-02 1.49339e-01 219 2006 7 6.87681e-02 1.42331e-01 88 2006 8 1.00015e-01 1.49993e-01 137 2006 9 3.11677e-01 2.89752e-01 218 2006 10 2.61298e-01 2.52516e-01 339 2006 11 5.14667e-02 8.42516e-02 136 2006 12 2.31816e-01 2.00616e-01 131 2007 1 2.01209e-01 2.11483e-01 384 2007 2 1.74644e-02 3.58345e-02 29 2007 3 2.53383e-01 3.14840e-01 241 2007 4 2.32130e-01 2.75412e-01 222 2007 5 3.41103e-01 2.86621e-01 286 2007 6 1.52139e-01 1.83801e-01 107 2007 7 4.86629e-01 3.56661e-01 244 2007 8 1.17850e-01 1.69293e-01 110 2007 9 2.70614e-02 5.64883e-02 62 2007 10 8.43475e-02 1.50129e-01 152 2007 11 6.55612e-02 1.16118e-01 228 2007 12 1.18436e-01 1.74066e-01 110 2008 1 1.27999e-01 1.85409e-01 264 2008 2 1.14236e-01 1.81188e-01 272 2008 3 2.01559e-01 2.27447e-01 198 2008 4 1.95293e-01 2.39052e-01 319 2008 5 2.15852e-01 2.62822e-01 212 2008 6 1.21832e-01 1.51371e-01 123 2008 7 2.57499e-01 2.50930e-01 232 2008 8 2.70544e-01 3.07011e-01 191 2008 9 1.97348e-01 2.67439e-01 67 2008 10 1.58863e-01 1.82806e-01 127 2008 11 9.64391e-02 1.50121e-01 301 2008 12 6.19602e-02 1.12951e-01 207 2009 1 1.32005e-01 1.24070e-01 44 2009 2 1.68174e-01 2.15721e-01 292 2009 3 1.78637e-01 2.59404e-01 171 2009 4 2.79567e-01 2.74279e-01 219 2009 5 2.29433e-01 2.52058e-01 239 2009 6 9.32488e-02 1.35440e-01 84 2009 7 1.25921e-01 1.65592e-01 106 2009 8 3.08913e-01 3.45559e-01 180 2009 9 2.16326e-01 2.63147e-01 214 2009 10 2.78148e-01 2.59049e-01 377 2009 11 1.93972e-01 2.46151e-01 339 2009 12 8.61448e-02 1.53693e-01 202 2010 1 1.26005e-01 1.65621e-01 156 2010 2 5.39518e-02 9.42230e-02 59 2010 3 1.18667e-01 2.14298e-01 114 2010 4 9.68859e-02 1.67256e-01 207 2010 5 1.43344e-01 1.72842e-01 201 2010 6 1.83507e-01 2.08386e-01 176 2010 7 7.48095e-02 9.63783e-02 69 2010 8 2.11990e-01 2.57095e-01 200 2010 9 2.87408e-01 2.59530e-01 230 2010 10 9.36800e-02 1.48483e-01 250 2010 11 2.52324e-01 2.37098e-01 463 2010 12 1.34901e-01 1.83965e-01 246 2011 1 3.23866e-03 2.08642e-03 17 2011 2 9.82836e-02 1.40085e-01 156 2011 3 2.46299e-01 2.86833e-01 240 2011 4 2.54694e-01 2.95580e-01 364 2011 5 6.78376e-02 1.12036e-01 186 2011 6 1.82974e-01 2.36962e-01 320 2011 7 1.12587e-01 1.14023e-01 109 2011 8 3.98959e-01 3.71554e-01 57 2011 9 1.46444e-01 2.42203e-01 153 2011 10 1.04132e-01 1.85531e-01 143 2011 11 1.09606e-01 1.70648e-01 327 2011 12 6.59870e-02 1.24294e-01 199 2012 1 1.74118e-01 2.02461e-01 407 2012 2 1.39586e-01 1.64102e-01 183 2012 3 1.78497e-01 2.24169e-01 273 2012 4 3.24062e-01 2.94939e-01 248 2012 5 9.94780e-02 1.29168e-01 48 2012 6 7.57489e-02 1.43613e-01 84 2012 7 9.24142e-02 1.46515e-01 40 2012 8 5.52226e-02 8.92838e-02 107 2012 9 9.05750e-02 1.11416e-01 104 2012 10 8.67769e-02 8.58507e-02 70 2012 11 2.11090e-01 2.22324e-01 359 2012 12 1.42045e-01 1.86778e-01 144 2013 1 2.07948e-01 2.35419e-01 257 2013 2 1.20833e-01 1.71212e-01 273 2013 3 2.83828e-01 3.18048e-01 295 2013 4 3.09625e-01 3.13603e-01 273 2013 5 1.90742e-01 2.32915e-01 138 2013 6 1.54476e-01 1.86835e-01 48 2013 7 2.09889e-01 2.35648e-01 144 2013 8 2.09751e-01 2.66169e-01 110 2013 9 1.11172e-01 1.64669e-01 87 2013 10 1.65385e-01 2.44695e-01 311 2013 11 1.43494e-01 1.82714e-01 320 2013 12 1.59789e-01 1.91015e-01 222 2014 1 1.18259e-01 1.59305e-01 192 2014 2 1.66365e-01 1.79206e-01 318 2014 3 1.06169e-01 1.21563e-01 160 2014 4 1.23650e-01 2.10270e-01 99 2014 5 2.05715e-01 2.50963e-01 204 2014 6 3.59472e-01 2.77212e-01 216 2014 7 7.21786e-02 1.47827e-01 119 2014 8 1.44500e-01 2.25972e-01 125 2014 9 4.78255e-02 1.66307e-01 54 2014 10 1.25359e-01 1.77364e-01 126 2014 11 1.61271e-01 2.06404e-01 440 2014 12 8.34090e-02 1.55212e-01 231 2015 1 2.41258e-02 5.54929e-02 44 2015 2 2.09462e-01 2.65390e-01 40 2015 3 1.61352e-01 2.02389e-01 313 2015 4 2.00278e-01 2.28086e-01 210 2015 5 1.34832e-01 1.88143e-01 263 2015 6 1.15097e-01 1.91244e-01 154 2015 7 1.70463e-01 1.51968e-01 9 2015 8 1.04792e-01 1.19556e-01 24 2015 9 4.53420e-02 7.18220e-02 44 2015 10 1.69540e-01 2.05456e-01 162 2015 11 7.40806e-02 1.22707e-01 160 2015 12 9.13284e-02 1.74775e-01 98 2016 1 9.83889e-03 7.38127e-03 18 2016 2 4.91170e-02 9.54538e-02 138 2016 3 1.94856e-01 2.37014e-01 190 2016 4 1.46486e-01 1.83383e-01 187 2016 5 1.56709e-01 1.96328e-01 261 2016 6 7.72936e-02 7.79595e-02 107 2016 7 7.59350e-02 9.60383e-02 167 2016 8 1.78130e-01 3.05941e-01 120 2016 9 6.34016e-02 9.26361e-02 83 2016 10 1.19426e-01 1.76396e-01 237 2016 11 6.85449e-02 1.34532e-01 210 2016 12 1.35350e-01 1.83723e-01 223 2017 1 1.40598e-01 1.91359e-01 209 2017 2 9.71435e-02 1.72059e-01 116 2017 3 3.19932e-01 2.83499e-01 331 2017 4 2.97458e-01 2.86074e-01 303 2017 5 2.54488e-01 2.70914e-01 311 2017 6 2.97759e-01 2.89639e-01 212 2017 7 1.79705e-01 2.26456e-01 184 2017 8 4.81568e-02 9.66335e-02 33 2017 9 1.94369e-01 1.62032e-01 51 2017 10 3.38582e-02 5.71687e-02 49 2017 11 7.18863e-02 1.58901e-01 323 2017 12 5.53350e-02 5.36088e-02 159 2018 1 4.57103e-02 4.62303e-02 53 2018 2 1.14876e-01 1.97836e-01 90 2018 3 2.72778e-01 2.76896e-01 319 2018 4 1.84212e-01 2.32044e-01 231 2018 5 1.06349e-02 1.89273e-02 10 2018 6 9.46618e-02 1.56975e-01 88 2018 7 2.22750e-01 2.31763e-01 176 2018 8 1.80632e-01 2.21647e-01 84 2018 9 2.37006e-01 2.82454e-01 175 2018 10 5.01904e-03 1.03421e-02 17 2018 11 4.43564e-02 6.21939e-02 44 2018 12 1.08856e-01 1.62342e-01 296 2019 1 1.08746e-01 1.64457e-01 149 2019 2 3.51510e-02 5.45287e-02 136 2019 3 3.13630e-01 2.91345e-01 474 2019 4 2.07214e-01 2.82680e-01 155 2019 5 9.34588e-02 1.95825e-01 318 2019 6 3.20358e-01 2.98971e-01 358 2019 7 2.97116e-01 2.97529e-01 270 2019 8 2.69782e-01 2.70651e-01 156 2019 9 2.81182e-01 2.77038e-01 210 2019 10 3.37513e-01 2.56308e-01 355 2019 11 1.29530e-01 1.85406e-01 224 2019 12 1.33273e-01 1.80526e-01 280 2020 1 4.12938e-02 9.01824e-02 129 2020 2 1.56046e-01 2.22676e-01 123 2020 3 1.76848e-01 2.21073e-01 417 2020 4 2.61370e-01 2.66006e-01 328 2020 5 3.55538e-01 3.02198e-01 341 2020 6 3.12062e-01 3.04252e-01 207 2020 7 1.55669e-01 1.54065e-01 153 2020 8 2.22166e-01 2.56214e-01 298 2020 9 4.27104e-01 3.15965e-01 300 2020 10 3.28143e-01 3.05460e-01 176 2020 11 8.07291e-02 1.12051e-01 105 2020 12 6.53746e-02 1.14563e-01 211 2021 1 3.76025e-02 6.78644e-02 219 2021 2 1.00417e-01 1.85064e-01 125 2021 3 1.73802e-01 2.02101e-01 160 2021 4 2.99199e-01 2.82134e-01 268 2021 5 1.85711e-01 2.16422e-01 327 2021 6 1.62205e-01 2.05741e-01 106 2021 7 2.23285e-01 2.48714e-01 144 2021 8 1.73992e-01 2.84338e-01 83 2021 9 8.85091e-02 9.82710e-02 91 2021 10 9.35815e-02 1.45198e-01 89 2021 11 1.19797e-01 1.62557e-01 110 2021 12 9.35062e-02 1.54427e-01 291 2022 1 8.58776e-02 1.59207e-01 119 2022 2 1.68757e-01 2.20111e-01 207 2022 3 1.53897e-01 1.89104e-01 189 2022 4 1.15206e-01 1.57567e-01 58 2022 5 2.13325e-01 2.58132e-01 136 2022 6 4.00767e-02 5.30087e-02 20 2022 7 1.38648e-01 1.69290e-01 78 2022 8 2.44050e-01 2.69981e-01 220 2022 9 1.45573e-01 2.09885e-01 196 2022 10 4.38025e-02 6.59224e-02 77 2022 11 2.03310e-01 2.13061e-01 356 2022 12 1.72365e-01 1.99645e-01 336 2023 1 1.17267e-01 1.92479e-01 232 2023 2 3.42068e-01 2.82540e-01 416 2023 3 2.22563e-01 2.44708e-01 347 2023 4 1.77869e-01 2.16127e-01 140 2023 5 1.93827e-01 2.06621e-01 100 2023 6 1.50385e-01 2.60207e-01 55 2023 7 1.48381e-01 1.76351e-01 193 2023 8 3.85095e-01 3.09535e-01 130 2023 9 1.31971e-01 1.20749e-01 103 2023 10 7.48246e-02 1.27472e-01 143 2023 11 1.92911e-01 2.26592e-01 197 2023 12 1.72231e-01 1.95803e-01 202 2024 1 1.25505e-01 1.57665e-01 139 2024 2 1.51959e-01 1.88807e-01 289 2024 3 3.43271e-01 2.82776e-01 272 2024 4 nan nan 0