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 6.35955e+01 5.33931e-01 257 2002 8 5.41740e+01 2.78557e+00 409 2002 9 4.35897e+01 3.84183e+00 335 2002 10 3.19604e+01 2.53072e+00 105 2002 11 2.25407e+01 2.00522e-01 88 2002 12 1.61326e+01 3.46463e-01 95 2003 1 1.90489e+01 2.03808e+00 18 2003 2 2.56235e+01 1.96879e+00 125 2003 3 3.94078e+01 1.85864e+00 89 2003 4 5.35497e+01 2.08250e+00 245 2003 5 6.00183e+01 1.83981e+00 177 2003 6 6.46577e+01 2.14181e-01 153 2003 7 6.23508e+01 1.58542e+00 180 2003 8 5.45520e+01 2.06325e+00 459 2003 9 4.53713e+01 2.61370e+00 325 2003 10 3.37124e+01 1.01437e+00 158 2003 11 2.01558e+01 2.16625e+00 236 2003 12 1.58885e+01 5.21251e-01 285 2004 1 1.79859e+01 5.72271e-01 101 2004 2 2.85338e+01 2.54894e+00 177 2004 3 3.85895e+01 1.54679e+00 117 2004 4 5.10750e+01 2.43430e+00 227 2004 5 6.16223e+01 1.81781e+00 187 2004 6 6.45876e+01 2.05247e-01 70 2004 7 6.25019e+01 1.16052e+00 93 2004 8 5.55994e+01 3.06850e+00 175 2004 9 4.24535e+01 4.15356e+00 400 2004 10 3.42012e+01 1.35975e+00 191 2004 11 2.05704e+01 1.27015e-01 68 2004 12 1.56473e+01 3.55006e-01 108 2005 1 1.98689e+01 2.26322e-02 21 2005 2 3.13864e+01 5.83661e-01 72 2005 3 3.81137e+01 3.14507e+00 102 2005 4 5.09050e+01 1.77851e+00 314 2005 5 6.14928e+01 1.91499e+00 207 2005 6 6.38593e+01 3.11629e-01 41 2005 7 6.30875e+01 1.24708e+00 262 2005 8 5.41689e+01 2.85338e+00 193 2005 9 4.38076e+01 3.77402e+00 497 2005 10 3.31299e+01 3.70270e+00 247 2005 11 2.04426e+01 2.58507e+00 140 2005 12 1.56379e+01 2.74695e-01 112 2006 1 2.02763e+01 1.05557e+00 202 2006 2 3.04249e+01 8.74930e-01 154 2006 3 3.89204e+01 4.53054e+00 334 2006 4 5.16823e+01 2.99051e+00 262 2006 5 5.97563e+01 1.93883e+00 241 2006 6 6.43797e+01 2.15587e-01 237 2006 7 6.27999e+01 6.29899e-01 62 2006 8 5.53177e+01 3.16652e+00 341 2006 9 3.92512e+01 2.56229e-03 10 2006 10 3.36293e+01 2.76578e+00 146 2006 11 1.81911e+01 3.43757e-02 24 2006 12 1.56697e+01 3.65192e-01 96 2007 1 1.94993e+01 6.74709e-01 86 2007 2 2.84093e+01 2.82631e+00 203 2007 3 3.97414e+01 3.82620e+00 240 2007 4 5.48360e+01 1.60051e+00 181 2007 5 5.98219e+01 2.52474e+00 248 2007 6 6.44762e+01 2.44341e-01 256 2007 7 6.13506e+01 1.45927e+00 127 2007 8 5.45425e+01 3.32043e+00 279 2007 9 4.38455e+01 3.84933e+00 422 2007 10 2.89026e+01 4.41134e-01 64 2007 11 2.13859e+01 2.16362e+00 69 2007 12 nan nan 0 2008 1 1.70899e+01 2.16684e+00 69 2008 2 3.02761e+01 2.00775e+00 116 2008 3 4.16067e+01 3.02119e+00 263 2008 4 5.18634e+01 2.44200e+00 302 2008 5 6.09537e+01 1.25645e+00 219 2008 6 6.42530e+01 2.27874e-01 38 2008 7 6.33107e+01 1.10365e+00 169 2008 8 5.42791e+01 3.18394e+00 266 2008 9 4.37500e+01 4.30348e+00 272 2008 10 2.99429e+01 2.89778e+00 280 2008 11 2.18245e+01 2.55990e+00 119 2008 12 nan nan 0 2009 1 1.93622e+01 2.07591e+00 96 2009 2 2.58219e+01 3.12618e+00 195 2009 3 3.89068e+01 3.82057e+00 447 2009 4 5.10465e+01 3.05285e+00 283 2009 5 6.12609e+01 9.88992e-01 247 2009 6 6.45250e+01 1.99793e-01 198 2009 7 6.16201e+01 1.91662e+00 78 2009 8 5.58330e+01 2.50176e+00 184 2009 9 4.49157e+01 3.44868e+00 496 2009 10 3.11649e+01 3.36695e+00 80 2009 11 2.11907e+01 1.33275e+00 262 2009 12 1.55144e+01 4.72812e-01 103 2010 1 1.80108e+01 1.27504e+00 177 2010 2 2.60254e+01 2.25360e+00 144 2010 3 3.78058e+01 3.37890e+00 395 2010 4 5.20726e+01 3.18116e+00 325 2010 5 6.20764e+01 1.08728e+00 206 2010 6 6.43808e+01 3.33729e-01 118 2010 7 6.24186e+01 1.39895e+00 256 2010 8 5.42444e+01 3.30982e+00 292 2010 9 4.36997e+01 1.97268e+00 141 2010 10 3.20843e+01 2.85826e+00 198 2010 11 2.34270e+01 1.09084e+00 126 2010 12 1.56838e+01 1.18551e-01 38 2011 1 1.74102e+01 6.15237e-01 56 2011 2 2.84398e+01 1.21803e+00 122 2011 3 4.16312e+01 3.96180e+00 298 2011 4 5.32521e+01 2.72814e+00 75 2011 5 5.97553e+01 1.36072e+00 187 2011 6 6.40609e+01 2.61240e-01 196 2011 7 6.27413e+01 1.41108e+00 294 2011 8 5.52321e+01 2.81024e+00 233 2011 9 4.40960e+01 2.98053e+00 274 2011 10 3.49748e+01 6.70526e-01 229 2011 11 2.16211e+01 2.03117e+00 198 2011 12 1.57288e+01 5.77258e-01 190 2012 1 1.71221e+01 6.31874e-01 114 2012 2 2.65930e+01 2.83350e+00 219 2012 3 4.04470e+01 3.06304e+00 297 2012 4 5.18052e+01 3.53281e+00 363 2012 5 6.09226e+01 7.83698e-01 148 2012 6 6.44270e+01 3.05000e-01 294 2012 7 6.20110e+01 1.64142e+00 183 2012 8 5.40304e+01 3.32426e+00 351 2012 9 4.42833e+01 4.02482e+00 314 2012 10 2.99015e+01 2.89889e+00 147 2012 11 1.99268e+01 1.19970e+00 149 2012 12 1.57950e+01 5.79194e-01 87 2013 1 1.80973e+01 1.73078e+00 126 2013 2 2.64427e+01 2.08096e+00 168 2013 3 4.11003e+01 3.28247e+00 141 2013 4 5.42104e+01 1.90382e+00 168 2013 5 5.98442e+01 2.02538e+00 193 2013 6 6.44079e+01 3.02721e-01 145 2013 7 6.20686e+01 7.47849e-01 185 2013 8 5.45129e+01 2.58941e+00 336 2013 9 4.24724e+01 3.48549e+00 436 2013 10 3.21133e+01 3.46836e+00 295 2013 11 2.11789e+01 2.03707e+00 174 2013 12 1.62454e+01 4.57985e-01 78 2014 1 1.69036e+01 5.15975e-02 47 2014 2 2.65932e+01 3.08374e+00 129 2014 3 4.00191e+01 3.47033e+00 387 2014 4 5.21702e+01 2.92528e+00 217 2014 5 6.17274e+01 1.85765e+00 123 2014 6 6.43384e+01 2.30939e-01 122 2014 7 6.28967e+01 9.22923e-01 140 2014 8 5.34552e+01 2.10908e+00 203 2014 9 4.22325e+01 3.77076e+00 264 2014 10 3.15248e+01 2.18302e+00 144 2014 11 2.39968e+01 1.43010e+00 60 2014 12 1.54858e+01 4.17727e-01 80 2015 1 1.96213e+01 1.28972e+00 143 2015 2 2.58160e+01 1.72603e+00 17 2015 3 4.03127e+01 3.33923e+00 348 2015 4 5.17340e+01 2.82450e+00 271 2015 5 6.15206e+01 1.54123e+00 174 2015 6 6.42822e+01 3.39656e-01 111 2015 7 6.18536e+01 1.52789e+00 184 2015 8 5.45462e+01 2.38813e+00 205 2015 9 4.37993e+01 2.58341e+00 279 2015 10 3.06204e+01 2.98310e+00 236 2015 11 2.10638e+01 2.82319e+00 394 2015 12 1.56399e+01 1.54281e-01 63 2016 1 2.11867e+01 1.95469e-02 17 2016 2 2.51401e+01 2.18257e+00 163 2016 3 3.88911e+01 2.91503e+00 167 2016 4 5.35995e+01 2.21497e+00 169 2016 5 6.12541e+01 1.64426e+00 218 2016 6 6.45889e+01 2.41668e-01 242 2016 7 6.20139e+01 1.26637e+00 148 2016 8 5.50174e+01 3.41111e+00 393 2016 9 4.47745e+01 3.79593e+00 360 2016 10 3.20890e+01 3.21311e+00 457 2016 11 2.19792e+01 1.09037e+00 310 2016 12 1.55767e+01 3.26794e-02 16 2017 1 1.88526e+01 2.93604e+00 96 2017 2 2.87035e+01 7.48383e-01 134 2017 3 4.01154e+01 3.84471e+00 143 2017 4 5.33188e+01 1.85629e+00 117 2017 5 6.01829e+01 1.26364e+00 97 2017 6 6.38997e+01 2.88780e-01 139 2017 7 6.27475e+01 1.52709e+00 220 2017 8 5.45490e+01 3.21303e+00 102 2017 9 4.17081e+01 3.19493e+00 284 2017 10 3.25482e+01 3.42141e+00 251 2017 11 1.98686e+01 2.36821e+00 173 2017 12 1.64423e+01 8.17496e-02 43 2018 1 2.00506e+01 1.00523e+00 108 2018 2 2.96686e+01 2.23193e+00 211 2018 3 4.02992e+01 3.28604e+00 295 2018 4 5.32219e+01 3.53166e+00 194 2018 5 6.11536e+01 1.95541e+00 240 2018 6 6.43814e+01 2.40795e-01 249 2018 7 6.35936e+01 6.95905e-01 293 2018 8 5.39304e+01 2.70155e+00 134 2018 9 4.29672e+01 2.29662e+00 250 2018 10 3.06582e+01 3.36088e+00 207 2018 11 1.85746e+01 1.91962e-01 60 2018 12 1.62144e+01 2.32958e-01 54 2019 1 1.87897e+01 8.42508e-01 53 2019 2 2.20160e+01 5.20380e-02 4 2019 3 4.23345e+01 2.41768e+00 240 2019 4 5.48791e+01 1.51476e+00 142 2019 5 5.96636e+01 1.35792e+00 145 2019 6 6.42354e+01 2.36832e-01 227 2019 7 6.27422e+01 1.16478e+00 242 2019 8 5.63871e+01 2.60382e+00 226 2019 9 4.27928e+01 2.38779e+00 206 2019 10 3.17237e+01 2.82251e+00 352 2019 11 nan nan 0 2019 12 1.52468e+01 1.34705e-01 51 2020 1 nan nan 0 2020 2 2.88143e+01 1.51295e+00 121 2020 3 3.98171e+01 3.87037e+00 231 2020 4 4.94692e+01 2.23673e+00 216 2020 5 6.03609e+01 2.18823e+00 285 2020 6 6.43952e+01 3.40178e-01 351 2020 7 6.24093e+01 2.02839e+00 215 2020 8 5.77213e+01 7.99828e-01 136 2020 9 4.25003e+01 1.84311e+00 147 2020 10 3.06038e+01 3.37352e+00 228 2020 11 2.13241e+01 1.66351e+00 240 2020 12 1.58335e+01 7.14041e-01 79 2021 1 2.15582e+01 3.53213e-01 97 2021 2 2.62244e+01 3.15785e+00 153 2021 3 3.80804e+01 2.93225e+00 462 2021 4 4.95178e+01 2.60487e+00 227 2021 5 6.05873e+01 1.83033e+00 202 2021 6 6.44664e+01 1.87883e-01 51 2021 7 6.18854e+01 7.52315e-01 88 2021 8 5.40760e+01 1.98295e+00 271 2021 9 4.42600e+01 3.85676e+00 311 2021 10 3.03719e+01 4.36835e+00 144 2021 11 2.18060e+01 1.35361e+00 165 2021 12 1.55265e+01 1.42024e-01 49 2022 1 1.98721e+01 2.66980e+00 113 2022 2 2.55781e+01 2.43800e+00 98 2022 3 3.91074e+01 4.34864e+00 182 2022 4 5.51203e+01 1.47509e+00 77 2022 5 6.06582e+01 1.42150e+00 195 2022 6 6.44456e+01 3.59584e-01 241 2022 7 6.29084e+01 1.15817e+00 68 2022 8 5.48026e+01 2.20238e+00 220 2022 9 4.41245e+01 4.43777e+00 285 2022 10 3.15442e+01 3.90002e+00 566 2022 11 2.13731e+01 2.52439e+00 297 2022 12 1.61159e+01 2.30413e-01 43 2023 1 nan nan 0 2023 2 2.59025e+01 9.40182e-01 139 2023 3 3.90782e+01 3.34649e+00 324 2023 4 4.94323e+01 1.68659e+00 332 2023 5 6.20396e+01 2.12788e+00 366 2023 6 6.43898e+01 2.60578e-01 85 2023 7 6.29182e+01 1.53644e+00 260 2023 8 5.36529e+01 2.97666e+00 435 2023 9 4.31358e+01 4.04200e+00 568 2023 10 3.17706e+01 4.11836e+00 359 2023 11 2.24963e+01 1.56630e+00 131 2023 12 1.60060e+01 0.00000e+00 1 2024 1 1.61424e+01 1.30058e-01 33 2024 2 2.65261e+01 3.19883e+00 309 2024 3 3.65329e+01 1.92810e+00 176 2024 4 4.64978e+01 7.80756e-02 60