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 2.76049e+01 6.84361e+00 179
2002  8 2.98661e+01 9.51355e+00 102
2002  9 2.68507e+01 7.64109e+00 113
2002 10 2.23628e+01 8.09017e+00 212
2002 11 1.47339e+01 7.04070e+00 169
2002 12 1.15139e+01 6.13352e+00 95
2003  1 1.33358e+01 5.93368e+00 251
2003  2 1.52516e+01 5.43633e+00 595
2003  3 1.86976e+01 8.48115e+00 458
2003  4 2.76387e+01 1.04726e+01 192
2003  5 2.83252e+01 9.51206e+00 127
2003  6 3.49680e+01 9.46438e+00 90
2003  7 2.00645e+01 1.27094e+01 82
2003  8 3.99016e+01 4.49888e+00 17
2003  9 2.13094e+01 9.55599e+00 207
2003 10 2.35204e+01 8.56711e+00 306
2003 11 1.59743e+01 6.88327e+00 62
2003 12 1.53599e+01 2.72539e+00 56
2004  1 1.82479e+01 4.71061e+00 362
2004  2 1.93070e+01 8.10602e+00 317
2004  3 1.58781e+01 1.20060e+01 185
2004  4 2.36451e+01 1.20612e+01 244
2004  5 1.88113e+01 1.07153e+01 72
2004  6 3.43864e+01 6.29461e+00 144
2004  7 3.39016e+01 7.62986e+00 146
2004  8 2.55447e+01 9.72169e+00 297
2004  9 2.33939e+01 1.11101e+01 147
2004 10 2.52287e+01 7.04486e+00 122
2004 11 1.68379e+01 7.57104e+00 147
2004 12 1.34741e+01 3.20667e+00 47
2005  1 1.40654e+01 7.88793e+00 111
2005  2 1.99783e+01 8.79365e+00 129
2005  3 1.72367e+01 1.05456e+01 251
2005  4 2.82639e+01 6.76236e+00 151
2005  5 3.34129e+01 1.03597e+01 162
2005  6 3.17058e+01 8.97286e+00 77
2005  7 1.44548e+01 5.74668e+00 50
2005  8 2.05381e+01 1.27433e+01 186
2005  9 2.20411e+01 8.29658e+00 263
2005 10 1.50135e+01 7.59121e+00 100
2005 11 6.89209e+00 6.83180e+00 168
2005 12 1.26725e+01 3.99967e+00 569
2006  1 5.51003e+00 5.47460e+00 378
2006  2 1.47319e+01 7.42859e+00 319
2006  3 1.44739e+01 7.70311e+00 318
2006  4 2.02502e+01 8.80516e+00 225
2006  5 2.97991e+01 1.17214e+01 162
2006  6 2.62953e+01 9.45270e+00 224
2006  7 2.79990e+01 1.19993e+01 127
2006  8 2.53735e+01 8.05541e+00 36
2006  9 2.20043e+01 7.20878e+00 80
2006 10 2.03956e+01 5.23791e+00 93
2006 11 1.42703e+01 7.71779e+00 49
2006 12 1.48693e+01 2.50562e+00 18
2007  1 1.26446e+01 7.22847e+00 180
2007  2 1.94937e+01 8.17295e+00 126
2007  3 1.49434e+01 1.05803e+01 119
2007  4 2.22374e+01 1.38883e+01 201
2007  5 2.98051e+01 9.15868e+00 92
2007  6 2.52515e+01 1.12322e+01 153
2007  7 3.25693e+01 9.22109e+00 100
2007  8 3.02093e+01 5.97251e+00 128
2007  9 1.73335e+01 8.23040e+00 102
2007 10 1.70608e+01 8.14877e+00 81
2007 11 1.64740e+01 6.63014e+00 121
2007 12 1.26653e+01 6.46427e+00 83
2008  1 1.36151e+01 6.38708e+00 127
2008  2 1.66178e+01 7.64865e+00 206
2008  3 2.24179e+01 6.68896e+00 120
2008  4 1.80871e+01 1.14013e+01 128
2008  5 2.47717e+01 1.16545e+01 155
2008  6 2.90491e+01 1.19543e+01 53
2008  7 1.49751e+01 8.72099e+00 45
2008  8 3.22485e+01 9.28027e+00 154
2008  9 1.86361e+01 9.10891e+00 50
2008 10 1.46390e+01 8.22266e+00 128
2008 11 1.75635e+01 6.88059e+00 146
2008 12 1.55377e+01 6.32940e+00 121
2009  1 1.07636e+01 7.26178e+00 121
2009  2 1.34278e+01 8.60572e+00 190
2009  3 1.28905e+01 8.24445e+00 135
2009  4 2.60042e+01 1.09312e+01 243
2009  5 2.70323e+01 1.35495e+01 131
2009  6 3.53570e+01 6.37301e+00 118
2009  7 2.34353e+01 1.08752e+01 156
2009  8 2.77714e+01 1.14598e+01 39
2009  9 1.76749e+01 1.06872e+01 74
2009 10 2.58914e+01 7.51477e+00 148
2009 11 1.48928e+01 6.68045e+00 132
2009 12 1.38702e+01 6.61509e+00 75
2010  1 4.38460e+00 3.79765e+00 122
2010  2 6.03066e+00 4.06942e+00 357
2010  3 7.00306e+00 4.39286e+00 457
2010  4 2.10512e+01 9.55512e+00 142
2010  5 2.01849e+01 1.23875e+01 102
2010  6 2.94604e+01 1.08307e+01 154
2010  7 1.50728e+01 1.21210e+01 52
2010  8 2.48026e+01 1.04067e+01 108
2010  9 3.32755e+01 5.42224e+00 27
2010 10 2.36312e+01 6.67391e+00 144
2010 11 1.32136e+01 8.58919e+00 217
2010 12 1.09108e+01 7.25467e+00 133
2011  1 1.31787e+01 7.06192e+00 205
2011  2 1.74735e+01 6.15379e+00 344
2011  3 2.02529e+01 1.03968e+01 114
2011  4 2.54291e+01 1.13810e+01 337
2011  5 2.50406e+01 1.03606e+01 251
2011  6 2.71004e+01 1.40987e+01 170
2011  7 3.43956e+01 7.78445e+00 195
2011  8 3.02869e+01 8.71035e+00 98
2011  9 3.21465e+01 6.39018e+00 270
2011 10 2.29537e+01 1.02607e+01 48
2011 11 1.67766e+01 5.51561e+00 137
2011 12 1.31938e+01 6.08232e+00 117
2012  1 1.40328e+01 7.24421e+00 369
2012  2 1.84796e+01 9.21416e+00 56
2012  3 2.46785e+01 8.11213e+00 195
2012  4 2.27801e+01 1.14029e+01 75
2012  5 2.56701e+01 1.02104e+01 121
2012  6 2.95241e+01 7.99943e+00 68
2012  7 2.84363e+01 8.41714e+00 181
2012  8 3.06891e+01 1.11052e+01 172
2012  9 2.92940e+01 5.84263e+00 239
2012 10 1.87244e+01 6.28511e+00 81
2012 11 1.77069e+01 7.62524e+00 180
2012 12 1.67538e+01 5.61904e+00 125
2013  1 1.70220e+01 5.59264e+00 176
2013  2 1.48474e+01 8.97558e+00 116
2013  3 2.73526e+01 9.27129e+00 292
2013  4 3.05516e+01 8.78137e+00 124
2013  5 3.08835e+01 1.03152e+01 197
2013  6 1.56895e+01 8.76553e+00 49
2013  7 1.36466e+01 4.80015e+00 112
2013  8 3.79231e+01 3.71666e+00 13
2013  9 2.31397e+01 8.76848e+00 141
2013 10 2.68808e+01 4.90267e+00 237
2013 11 1.38155e+01 7.44921e+00 123
2013 12 1.35138e+01 5.64666e+00 111
2014  1 1.34461e+01 6.99001e+00 159
2014  2 1.71891e+01 9.80941e+00 166
2014  3 2.35850e+01 9.12904e+00 438
2014  4 3.07813e+01 8.18967e+00 244
2014  5 3.10069e+01 1.23679e+01 116
2014  6 3.15084e+01 8.76860e+00 291
2014  7 2.96468e+01 1.03326e+01 135
2014  8 2.88861e+01 9.29772e+00 324
2014  9 2.92508e+01 4.38065e+00 17
2014 10 2.38366e+01 7.19240e+00 193
2014 11 2.14138e+01 5.05625e+00 74
2014 12 1.60791e+01 6.33876e+00 112
2015  1 1.72979e+01 5.14537e+00 190
2015  2 1.77880e+01 5.58082e+00 100
2015  3 2.38050e+01 6.87873e+00 303
2015  4 2.03264e+01 1.08655e+01 119
2015  5 2.84825e+01 1.26203e+01 133
2015  6 2.82837e+01 1.34972e+01 80
2015  7 2.61344e+01 1.01274e+01 117
2015  8 3.18238e+01 8.47810e+00 141
2015  9 2.62962e+01 7.05867e+00 136
2015 10 1.94701e+01 8.63011e+00 202
2015 11 1.77029e+01 7.19119e+00 57
2015 12 1.45326e+01 5.55643e+00 59
2016  1 1.65080e+01 4.24847e+00 42
2016  2 8.81514e+00 5.72881e+00 333
2016  3 2.30178e+01 1.07501e+01 240
2016  4 2.44829e+01 1.24508e+01 170
2016  5 2.06974e+01 1.02129e+01 149
2016  6 3.31580e+01 8.22144e+00 237
2016  7 2.68768e+01 7.81180e+00 183
2016  8 2.52175e+01 1.35721e+01 73
2016  9 2.51408e+01 8.13933e+00 335
2016 10 2.56763e+01 7.58259e+00 101
2016 11 1.85051e+01 6.46416e+00 53
2016 12 1.24820e+01 6.40429e+00 22
2017  1 7.85455e+00 9.76207e+00 156
2017  2 1.27610e+01 7.13655e+00 428
2017  3 2.46243e+01 8.16451e+00 166
2017  4 3.06821e+01 9.25537e+00 109
2017  5 2.12939e+01 1.28620e+01 212
2017  6 2.58367e+01 1.23591e+01 101
2017  7 2.90123e+01 1.02552e+01 108
2017  8 2.67892e+01 9.02119e+00 327
2017  9 1.00469e+01 7.81504e+00 164
2017 10 1.83803e+01 7.41938e+00 59
2017 11 1.05362e+01 5.39821e+00 336
2017 12 1.21078e+01 5.19128e+00 755
2018  1 1.19661e+01 4.28802e+00 243
2018  2 1.45389e+01 6.72681e+00 125
2018  3 1.72526e+01 1.17739e+01 321
2018  4 2.31860e+01 1.17422e+01 288
2018  5 2.47184e+01 1.14334e+01 68
2018  6 2.77903e+01 1.39687e+01 187
2018  7 2.48250e+01 1.16792e+01 200
2018  8 2.40420e+01 9.59889e+00 100
2018  9 1.93374e+01 1.03455e+01 72
2018 10 2.49821e+01 6.41747e+00 78
2018 11 1.14891e+01 6.69786e+00 48
2018 12 1.31638e+01 5.67675e+00 69
2019  1 1.29787e+01 7.81396e+00 63
2019  2 1.55500e+01 1.00434e+01 179
2019  3 1.56657e+01 9.22729e+00 186
2019  4 1.73729e+01 1.28977e+01 212
2019  5 2.76592e+01 1.02252e+01 285
2019  6 2.19231e+01 1.16584e+01 255
2019  7 2.04478e+01 1.08659e+01 159
2019  8 2.91013e+01 1.04714e+01 174
2019  9 2.13984e+01 1.09437e+01 96
2019 10 1.69152e+01 9.02656e+00 107
2019 11 1.55417e+01 7.71449e+00 184
2019 12 1.55568e+01 5.99155e+00 124
2020  1 1.33500e+01 6.97134e+00 83
2020  2 1.46792e+01 8.15619e+00 22
2020  3 1.73913e+01 1.09192e+01 203
2020  4 1.88751e+01 1.03915e+01 164
2020  5 2.08333e+01 1.21686e+01 175
2020  6 1.76542e+01 1.15855e+01 214
2020  7 2.80946e+01 1.35466e+01 114
2020  8 2.28422e+01 1.24302e+01 206
2020  9 2.32242e+01 8.19977e+00 130
2020 10 1.27723e+01 8.77225e+00 76
2020 11 1.37901e+01 7.20890e+00 162
2020 12 1.38826e+01 5.31246e+00 201
2021  1 1.71187e+01 8.01953e+00 267
2021  2 1.30641e+01 6.36586e+00 342
2021  3 1.97128e+01 9.75011e+00 256
2021  4 2.64600e+01 1.23828e+01 259
2021  5 2.17690e+01 1.31385e+01 274
2021  6 3.35673e+01 6.64147e+00 91
2021  7 2.78105e+01 1.43426e+01 249
2021  8 2.51508e+01 1.13909e+01 112
2021  9 2.43136e+01 9.50316e+00 267
2021 10 2.03193e+01 9.48655e+00 202
2021 11 1.90948e+01 7.42683e+00 176
2021 12 1.51246e+01 7.23241e+00 111
2022  1 1.35051e+01 8.89930e+00 227
2022  2 1.63563e+01 8.13480e+00 107
2022  3 1.30164e+01 9.51343e+00 147
2022  4 1.84883e+01 1.17152e+01 24
2022  5 2.32207e+01 1.21655e+01 254
2022  6 2.88198e+01 1.21772e+01 119
2022  7 3.27727e+01 5.15813e+00 74
2022  8 2.20654e+01 1.29652e+01 143
2022  9 2.73044e+01 1.05188e+01 308
2022 10 1.89744e+01 8.67587e+00 276
2022 11 1.67004e+01 6.36513e+00 279
2022 12 1.13957e+01 6.53292e+00 179
2023  1 8.63577e+00 6.79220e+00 286
2023  2 1.24793e+01 6.60563e+00 226
2023  3 1.71114e+01 1.13775e+01 357
2023  4 2.27063e+01 9.91016e+00 80
2023  5 2.60564e+01 1.14617e+01 169
2023  6 2.33335e+01 7.06993e+00 158
2023  7 2.42942e+01 1.06191e+01 184
2023  8 2.80869e+01 9.50678e+00 114
2023  9 2.81890e+01 6.33772e+00 267
2023 10 2.01988e+01 8.12560e+00 313
2023 11 1.68512e+01 7.53528e+00 109
2023 12 1.70382e+01 4.86319e+00 66
2024  1 1.64412e+01 9.60172e+00 122
2024  2 2.13265e+01 1.00100e+01 253
2024  3 2.14372e+01 1.00575e+01 183
2024  4 2.83386e+01 3.90079e+00 18