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 6.22028e+01 1.27953e+00 248 2002 8 5.40627e+01 2.87357e+00 479 2002 9 4.20091e+01 3.85491e+00 405 2002 10 3.03753e+01 2.11668e+00 209 2002 11 2.13521e+01 7.69623e-01 48 2002 12 1.47596e+01 3.09279e-02 47 2003 1 nan nan 0 2003 2 nan nan 0 2003 3 4.53140e+01 6.70035e-03 18 2003 4 5.20287e+01 2.80768e+00 159 2003 5 5.94840e+01 2.32200e+00 145 2003 6 6.46113e+01 4.72444e-01 162 2003 7 6.20380e+01 1.50681e+00 408 2003 8 5.50608e+01 2.03992e+00 380 2003 9 4.50629e+01 2.59097e+00 175 2003 10 3.27460e+01 1.70502e+00 176 2003 11 2.05650e+01 1.81381e+00 182 2003 12 1.55369e+01 3.36318e-01 211 2004 1 nan nan 0 2004 2 nan nan 0 2004 3 4.52140e+01 9.72430e-01 14 2004 4 4.99441e+01 2.26438e+00 212 2004 5 6.09410e+01 1.56378e+00 222 2004 6 6.45202e+01 4.19923e-01 108 2004 7 6.22736e+01 7.25229e-01 73 2004 8 5.32469e+01 3.01133e+00 175 2004 9 4.18040e+01 2.73912e+00 530 2004 10 3.22002e+01 3.30206e+00 351 2004 11 1.95246e+01 1.25171e+00 170 2004 12 1.56046e+01 5.36896e-01 176 2005 1 nan nan 0 2005 2 nan nan 0 2005 3 nan nan 0 2005 4 5.03420e+01 1.65386e+00 239 2005 5 6.13145e+01 2.50281e+00 118 2005 6 6.42460e+01 2.89999e-01 69 2005 7 6.29696e+01 1.52366e+00 264 2005 8 5.38365e+01 2.81549e+00 256 2005 9 4.36095e+01 3.85448e+00 212 2005 10 3.05745e+01 4.71675e+00 211 2005 11 2.22187e+01 1.38344e+00 148 2005 12 1.56157e+01 3.29459e-02 16 2006 1 1.72500e+01 1.87215e-01 54 2006 2 nan nan 0 2006 3 4.15523e+01 2.11476e+00 268 2006 4 5.11431e+01 1.62852e+00 233 2006 5 6.06306e+01 1.87373e+00 108 2006 6 6.44322e+01 4.22714e-01 216 2006 7 6.20855e+01 1.11893e+00 209 2006 8 5.35036e+01 2.48130e+00 352 2006 9 4.26297e+01 2.97389e+00 132 2006 10 3.35932e+01 2.86550e+00 105 2006 11 2.01902e+01 2.27451e+00 139 2006 12 1.47544e+01 2.06975e-02 53 2007 1 nan nan 0 2007 2 nan nan 0 2007 3 4.48129e+01 4.40969e-02 54 2007 4 5.33546e+01 3.60219e-01 113 2007 5 6.01408e+01 1.93508e+00 275 2007 6 6.46583e+01 2.12396e-01 298 2007 7 6.17697e+01 1.11283e+00 233 2007 8 5.27155e+01 2.72439e+00 193 2007 9 4.52141e+01 3.67823e+00 279 2007 10 3.21775e+01 3.22665e+00 299 2007 11 2.32062e+01 1.15451e+00 83 2007 12 1.56755e+01 2.51651e-02 29 2008 1 nan nan 0 2008 2 nan nan 0 2008 3 nan nan 0 2008 4 5.16099e+01 2.58897e+00 242 2008 5 6.25615e+01 5.13703e-01 98 2008 6 6.47076e+01 8.86601e-02 58 2008 7 6.27493e+01 1.10644e+00 264 2008 8 5.32381e+01 2.85488e+00 343 2008 9 4.32083e+01 3.67528e+00 365 2008 10 3.06028e+01 3.82954e+00 294 2008 11 2.18457e+01 2.87120e+00 165 2008 12 nan nan 0 2009 1 nan nan 0 2009 2 nan nan 0 2009 3 4.17080e+01 1.83200e+00 5 2009 4 5.10220e+01 2.08587e+00 240 2009 5 6.10694e+01 1.41557e+00 218 2009 6 6.44696e+01 3.08069e-01 144 2009 7 6.18245e+01 1.31274e+00 120 2009 8 5.48823e+01 1.92671e+00 184 2009 9 4.51725e+01 3.24318e+00 462 2009 10 3.51745e+01 2.88440e+00 70 2009 11 2.05181e+01 8.59665e-01 234 2009 12 1.57439e+01 7.33229e-01 63 2010 1 nan nan 0 2010 2 nan nan 0 2010 3 4.29004e+01 1.27222e+00 183 2010 4 5.16306e+01 3.65881e+00 259 2010 5 6.09413e+01 1.96462e+00 332 2010 6 6.47094e+01 3.03446e-01 72 2010 7 6.30409e+01 8.58855e-01 181 2010 8 5.42710e+01 2.88632e+00 208 2010 9 4.18042e+01 2.99091e+00 255 2010 10 3.14320e+01 3.42308e+00 287 2010 11 2.11671e+01 2.27151e+00 198 2010 12 nan nan 0 2011 1 nan nan 0 2011 2 nan nan 0 2011 3 nan nan 0 2011 4 5.26096e+01 2.67683e+00 99 2011 5 5.94430e+01 1.93934e+00 143 2011 6 6.45946e+01 3.04341e-01 163 2011 7 6.20748e+01 1.25996e+00 266 2011 8 5.52691e+01 2.82810e+00 396 2011 9 4.24758e+01 3.35012e+00 178 2011 10 3.47305e+01 1.06599e+00 238 2011 11 2.21640e+01 1.26955e+00 66 2011 12 1.54400e+01 3.79213e-01 168 2012 1 1.63098e+01 4.54477e-01 32 2012 2 nan nan 0 2012 3 4.12590e+01 2.92160e+00 224 2012 4 4.89477e+01 2.09641e+00 295 2012 5 6.12308e+01 1.10885e+00 256 2012 6 6.46880e+01 1.09382e-01 151 2012 7 6.21372e+01 1.71806e+00 325 2012 8 5.41545e+01 3.06662e+00 319 2012 9 4.02689e+01 3.89855e+00 290 2012 10 3.17334e+01 4.00303e+00 207 2012 11 1.80272e+01 1.57364e-02 12 2012 12 1.53421e+01 4.11785e-01 103 2013 1 nan nan 0 2013 2 nan nan 0 2013 3 4.50745e+01 4.52028e-01 62 2013 4 4.94450e+01 3.10051e+00 142 2013 5 5.83922e+01 1.88038e+00 67 2013 6 6.46098e+01 3.44559e-01 194 2013 7 6.23724e+01 7.11401e-01 91 2013 8 5.37795e+01 2.03857e+00 296 2013 9 4.30139e+01 3.90478e+00 389 2013 10 3.35172e+01 1.72390e+00 286 2013 11 1.88996e+01 4.54919e-01 45 2013 12 nan nan 0 2014 1 nan nan 0 2014 2 nan nan 0 2014 3 nan nan 0 2014 4 5.35287e+01 4.77098e-01 101 2014 5 6.16004e+01 2.12881e+00 159 2014 6 6.45372e+01 1.49820e-01 168 2014 7 6.18197e+01 1.47157e+00 95 2014 8 5.60247e+01 2.89832e+00 258 2014 9 3.99603e+01 2.52981e+00 309 2014 10 2.91898e+01 2.36151e+00 138 2014 11 2.40795e+01 7.42535e-02 56 2014 12 1.56317e+01 1.20314e-01 69 2015 1 nan nan 0 2015 2 nan nan 0 2015 3 nan nan 0 2015 4 5.31183e+01 2.18320e+00 302 2015 5 5.97254e+01 2.66346e+00 169 2015 6 6.42831e+01 7.63524e-01 252 2015 7 6.19920e+01 1.00312e+00 96 2015 8 5.57875e+01 2.54140e+00 240 2015 9 4.15747e+01 2.39365e+00 416 2015 10 3.05946e+01 2.26698e+00 110 2015 11 2.09843e+01 2.24712e+00 399 2015 12 1.54461e+01 3.76512e-01 117 2016 1 1.60160e+01 0.00000e+00 1 2016 2 nan nan 0 2016 3 4.23391e+01 1.58165e+00 131 2016 4 5.12129e+01 2.10628e+00 210 2016 5 5.97661e+01 1.88013e+00 332 2016 6 6.46247e+01 3.05076e-01 222 2016 7 6.19293e+01 7.64264e-01 136 2016 8 5.53524e+01 2.43557e+00 329 2016 9 4.47108e+01 3.50480e+00 267 2016 10 3.20562e+01 3.20280e+00 164 2016 11 2.12510e+01 1.72891e+00 281 2016 12 nan nan 0 2017 1 nan nan 0 2017 2 3.19041e+01 1.24770e-01 55 2017 3 3.78996e+01 4.14532e+00 116 2017 4 5.38122e+01 2.16106e+00 164 2017 5 5.99378e+01 8.89412e-01 106 2017 6 6.44313e+01 1.45269e-01 106 2017 7 6.19926e+01 1.04346e+00 266 2017 8 5.50418e+01 3.65845e+00 92 2017 9 4.13883e+01 3.40898e+00 214 2017 10 3.16778e+01 2.58950e+00 278 2017 11 2.00553e+01 2.74776e+00 164 2017 12 1.51040e+01 1.42829e-02 4 2018 1 nan nan 0 2018 2 nan nan 0 2018 3 3.96141e+01 2.95809e+00 321 2018 4 5.50745e+01 3.03337e+00 105 2018 5 6.06190e+01 1.71686e+00 290 2018 6 6.45599e+01 4.41122e-01 176 2018 7 6.27930e+01 1.67804e+00 358 2018 8 5.43376e+01 2.54153e+00 125 2018 9 4.34801e+01 2.39711e+00 289 2018 10 3.04164e+01 2.39706e+00 153 2018 11 2.01120e+01 0.00000e+00 4 2018 12 nan nan 0 2019 1 1.59660e+01 8.12392e-03 4 2019 2 nan nan 0 2019 3 4.32914e+01 4.25403e-01 65 2019 4 5.15665e+01 2.94951e+00 206 2019 5 5.97338e+01 1.82212e+00 196 2019 6 6.45134e+01 1.79145e-01 169 2019 7 6.16861e+01 1.30869e+00 99 2019 8 5.49013e+01 2.47696e+00 148 2019 9 4.17709e+01 1.50361e+00 155 2019 10 3.14536e+01 2.62126e+00 180 2019 11 1.85847e+01 3.77096e-03 3 2019 12 nan nan 0 2020 1 1.58473e+01 2.94688e-02 32 2020 2 nan nan 0 2020 3 3.99437e+01 3.11893e+00 212 2020 4 4.90085e+01 1.71059e+00 159 2020 5 6.05104e+01 2.29781e+00 327 2020 6 6.46524e+01 2.18300e-01 353 2020 7 6.32455e+01 1.27024e+00 251 2020 8 5.64714e+01 3.28241e-01 135 2020 9 4.27700e+01 3.08478e+00 164 2020 10 3.05540e+01 4.69049e+00 247 2020 11 2.06735e+01 1.68628e+00 365 2020 12 1.60930e+01 2.10903e-02 59 2021 1 1.88495e+01 1.36659e-02 4 2021 2 nan nan 0 2021 3 4.15094e+01 1.58765e+00 159 2021 4 5.22557e+01 3.56057e+00 260 2021 5 6.06547e+01 1.28814e+00 153 2021 6 6.43940e+01 5.07404e-01 212 2021 7 6.27057e+01 1.02346e+00 141 2021 8 5.46294e+01 1.60569e+00 80 2021 9 4.17690e+01 4.56765e+00 256 2021 10 2.96324e+01 1.26140e+00 76 2021 11 2.16835e+01 1.62861e+00 156 2021 12 1.51049e+01 7.57926e-02 70 2022 1 nan nan 0 2022 2 nan nan 0 2022 3 4.45297e+01 8.37714e-01 63 2022 4 5.45116e+01 1.91118e+00 108 2022 5 6.06533e+01 8.00209e-01 89 2022 6 6.43073e+01 4.31314e-01 110 2022 7 6.28556e+01 1.21452e+00 180 2022 8 5.60878e+01 2.29942e+00 377 2022 9 4.34062e+01 4.45679e+00 460 2022 10 3.13281e+01 4.19364e+00 756 2022 11 2.12755e+01 2.74744e+00 509 2022 12 1.58275e+01 5.91597e-02 52 2023 1 nan nan 0 2023 2 nan nan 0 2023 3 4.44238e+01 5.45802e-01 37 2023 4 5.13083e+01 2.67482e+00 507 2023 5 6.15613e+01 2.00944e+00 438 2023 6 6.45735e+01 4.69730e-01 247 2023 7 6.31851e+01 1.34734e+00 310 2023 8 5.35268e+01 3.16338e+00 477 2023 9 4.40004e+01 3.58688e+00 579 2023 10 3.17835e+01 4.23599e+00 277 2023 11 1.99389e+01 1.19142e+00 162 2023 12 1.56054e+01 2.76130e-01 84 2024 1 nan nan 0 2024 2 3.23940e+01 0.00000e+00 1 2024 3 4.27344e+01 3.77526e+00 40 2024 4 nan nan 0