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 1.76798e+01 1.12272e+01 42
2002  8 2.53952e+01 1.53104e+01 30
2002  9 3.11884e+01 1.00173e+00 11
2002 10 1.72973e+01 6.62593e+00 136
2002 11 2.03780e+01 4.82284e+00 205
2002 12 2.20064e+01 6.95171e+00 130
2003  1 1.55067e+01 5.99509e+00 325
2003  2 1.85868e+01 6.98307e+00 247
2003  3 3.16365e+01 1.26216e+01 80
2003  4 2.08970e+01 1.65801e+01 182
2003  5 2.52935e+01 7.59955e+00 68
2003  6 nan nan 0
2003  7 nan nan 0
2003  8 3.30932e+00 4.65150e-01 3
2003  9 3.75827e+00 7.44988e-01 12
2003 10 1.39775e+01 5.62372e+00 216
2003 11 2.49400e+01 1.04072e+01 189
2003 12 3.13425e+01 8.41261e+00 283
2004  1 3.01516e+01 8.92375e+00 317
2004  2 3.23176e+01 1.18908e+01 217
2004  3 3.14596e+01 1.72449e+01 76
2004  4 2.34527e+01 7.52594e+00 62
2004  5 3.69271e+01 1.77463e+01 65
2004  6 3.03317e+01 6.18792e+00 149
2004  7 1.73315e+01 5.75307e+00 20
2004  8 1.92412e+01 1.27954e+01 60
2004  9 7.13452e+00 5.09925e+00 42
2004 10 1.88568e+01 1.70770e+01 146
2004 11 1.78982e+01 6.52776e+00 178
2004 12 1.95534e+01 3.71401e+00 169
2005  1 3.13078e+01 1.12544e+01 161
2005  2 2.65483e+01 1.15763e+01 114
2005  3 2.73935e+01 7.16115e+00 185
2005  4 2.67777e+01 1.18258e+01 203
2005  5 3.36902e+01 8.58934e+00 44
2005  6 1.08421e+01 8.14628e+00 35
2005  7 3.93964e+01 1.03083e+01 13
2005  8 1.85649e+01 1.38039e+01 19
2005  9 1.08461e+01 5.82414e+00 40
2005 10 5.51623e+00 6.04155e+00 97
2005 11 1.85908e+01 1.18264e+01 153
2005 12 1.72036e+01 1.18576e+01 284
2006  1 3.36694e+01 1.08599e+01 209
2006  2 3.65215e+01 1.42771e+01 302
2006  3 3.06674e+01 1.24744e+01 356
2006  4 3.36309e+01 1.28602e+01 105
2006  5 2.12336e+01 9.68312e+00 119
2006  6 2.63378e+01 1.07530e+01 43
2006  7 3.72212e+00 4.56129e+00 10
2006  8 2.08541e+01 5.15435e+00 68
2006  9 6.62375e+00 6.31640e+00 94
2006 10 3.09799e+00 6.52448e+00 64
2006 11 1.59649e+01 1.12986e+01 181
2006 12 2.98600e+01 6.55421e+00 37
2007  1 3.12574e+01 8.18025e+00 173
2007  2 2.55819e+01 1.37899e+01 211
2007  3 3.31153e+01 1.40015e+01 235
2007  4 3.03020e+01 1.56236e+01 189
2007  5 2.26019e+01 1.47072e+01 79
2007  6 4.26612e+01 9.02173e-01 8
2007  7 3.55075e+01 9.42861e+00 33
2007  8 9.22039e+00 3.50245e+00 19
2007  9 1.54852e+01 9.37218e+00 69
2007 10 4.61137e+01 2.58531e+01 38
2007 11 1.85293e+01 8.64797e+00 112
2007 12 1.82413e+01 1.25917e+01 268
2008  1 2.81952e+01 8.66396e+00 320
2008  2 2.51093e+01 1.30482e+01 235
2008  3 2.65703e+01 9.18794e+00 188
2008  4 3.13818e+01 1.53824e+01 165
2008  5 3.62919e+01 8.56626e+00 178
2008  6 3.13049e+01 4.77578e+00 74
2008  7 1.33966e+01 4.06961e+00 15
2008  8 2.06003e+01 8.09582e+00 102
2008  9 1.48887e+01 5.78761e-01 29
2008 10 7.28974e+00 3.37837e+00 286
2008 11 2.45693e+01 8.68200e+00 309
2008 12 2.74664e+01 7.00404e+00 324
2009  1 2.87398e+01 4.64774e+00 343
2009  2 2.88418e+01 1.05532e+01 321
2009  3 3.71388e+01 1.45075e+01 285
2009  4 2.62104e+01 1.67560e+00 74
2009  5 3.19236e+01 6.66582e+00 103
2009  6 2.82258e+01 4.81327e+00 37
2009  7 2.04950e+01 9.88200e+00 51
2009  8 1.48997e+01 9.94678e+00 28
2009  9 8.16241e+00 5.73835e+00 42
2009 10 1.27599e+01 1.02168e+01 162
2009 11 1.75983e+01 6.61758e+00 222
2009 12 1.94086e+01 8.04353e+00 60
2010  1 3.50184e+01 3.48982e+00 210
2010  2 3.39949e+01 1.40303e+01 163
2010  3 3.36404e+01 7.71085e+00 446
2010  4 2.97686e+01 1.25685e+01 21
2010  5 2.92106e+01 5.77100e+00 48
2010  6 3.42353e+01 1.35084e+01 23
2010  7 2.26603e+01 9.71964e+00 25
2010  8 3.06717e+01 1.81242e+00 17
2010  9 nan nan 0
2010 10 1.93517e+01 8.20248e+00 411
2010 11 2.34409e+01 8.09260e+00 161
2010 12 2.47614e+01 1.26701e+01 339
2011  1 3.43179e+01 1.09774e+01 232
2011  2 3.33155e+01 9.76908e+00 161
2011  3 2.55696e+01 1.34042e+01 299
2011  4 2.77712e+01 1.43388e+01 108
2011  5 2.13687e+01 1.26810e+01 50
2011  6 2.56874e+01 1.00476e+01 59
2011  7 2.48659e+01 1.22836e+00 10
2011  8 nan nan 0
2011  9 1.82230e+01 4.88745e+00 107
2011 10 1.99151e+01 8.81819e+00 137
2011 11 2.83626e+01 1.08385e+01 262
2011 12 2.95393e+01 7.50212e+00 216
2012  1 2.31628e+01 9.70708e+00 190
2012  2 1.83189e+01 1.11562e+01 120
2012  3 3.20627e+01 1.46545e+01 103
2012  4 1.49324e+01 1.32522e+01 81
2012  5 2.11844e+01 1.43439e+01 51
2012  6 nan nan 0
2012  7 4.79078e+00 4.79077e+00 2
2012  8 1.60212e+01 5.91359e+00 5
2012  9 1.89169e+01 9.63096e+00 73
2012 10 1.27771e+01 5.79496e+00 52
2012 11 1.81105e+01 6.07716e+00 243
2012 12 1.59403e+01 8.50905e+00 173
2013  1 1.93255e+01 4.78489e+00 180
2013  2 3.16485e+01 8.93128e+00 295
2013  3 2.67529e+01 1.22237e+01 301
2013  4 3.32767e+01 9.27824e+00 98
2013  5 3.06998e+01 1.38987e+01 129
2013  6 3.28628e+01 8.14619e+00 97
2013  7 1.15327e+01 6.31243e+00 38
2013  8 2.28308e+01 1.40079e+01 49
2013  9 4.53425e+00 2.71275e+00 12
2013 10 1.74996e+01 6.37041e+00 220
2013 11 2.38495e+01 8.71208e+00 54
2013 12 2.42026e+01 1.21922e+01 272
2014  1 3.17680e+01 9.44553e+00 316
2014  2 3.18005e+01 7.67394e+00 220
2014  3 2.81458e+01 9.59984e+00 256
2014  4 2.59455e+01 1.29559e+01 42
2014  5 2.11636e+01 1.23940e+01 68
2014  6 3.56941e+01 1.49885e+01 24
2014  7 2.30292e+01 1.41155e+01 58
2014  8 1.39961e+01 5.13645e+00 30
2014  9 1.34877e+01 8.15020e+00 15
2014 10 1.55708e+01 1.57227e+01 139
2014 11 2.10681e+01 1.27965e+01 202
2014 12 1.91288e+01 1.08237e+01 176
2015  1 2.29653e+01 6.27165e+00 177
2015  2 2.60792e+01 9.28239e+00 283
2015  3 3.54619e+01 1.05490e+01 176
2015  4 2.85851e+01 1.40632e+01 64
2015  5 1.82220e+01 8.09278e+00 117
2015  6 1.22941e+01 1.12325e+01 43
2015  7 nan nan 0
2015  8 1.64045e+01 1.04631e+01 33
2015  9 nan nan 0
2015 10 1.24238e+01 8.85783e+00 88
2015 11 1.86061e+01 9.03998e+00 119
2015 12 1.55673e+01 5.74574e+00 82
2016  1 2.13596e+01 5.58493e+00 161
2016  2 1.69534e+01 1.08829e+01 244
2016  3 2.79409e+01 7.78706e+00 150
2016  4 3.00488e+01 7.72553e+00 96
2016  5 1.00579e+01 1.27314e+00 9
2016  6 2.80536e+01 1.09513e+01 81
2016  7 3.24486e+01 7.07393e+00 69
2016  8 1.23672e+01 1.07797e+01 125
2016  9 1.62947e+01 1.13166e+01 251
2016 10 4.01600e+00 2.12791e+00 32
2016 11 2.05780e+01 7.17937e+00 160
2016 12 2.03634e+01 1.14405e+01 185
2017  1 3.02115e+01 8.19076e+00 250
2017  2 2.96853e+01 1.35066e+01 354
2017  3 3.66675e+01 1.51251e+01 276
2017  4 2.60850e+01 9.65819e+00 174
2017  5 3.27126e+01 8.31065e+00 76
2017  6 2.34340e+00 3.82955e+00 21
2017  7 4.11708e+00 1.85603e+00 12
2017  8 1.47432e+01 1.14113e+01 62
2017  9 1.81120e+01 7.62712e+00 38
2017 10 1.90775e+01 8.59433e+00 37
2017 11 1.93199e+01 1.10406e+01 177
2017 12 2.61386e+01 1.05220e+01 153
2018  1 2.79998e+01 1.02293e+01 92
2018  2 2.84959e+01 1.04884e+01 199
2018  3 2.65090e+01 1.09140e+01 415
2018  4 2.26304e+01 1.02533e+01 90
2018  5 3.77364e+01 6.64050e+00 4
2018  6 1.76230e+01 1.10280e+01 55
2018  7 2.44785e+01 1.57796e+01 76
2018  8 1.31793e+01 2.10797e+01 24
2018  9 3.38020e+00 3.51332e+00 65
2018 10 2.51944e+01 2.01655e+01 62
2018 11 8.22940e+00 2.16827e+00 5
2018 12 2.11607e+01 1.24505e+01 189
2019  1 2.96403e+01 9.51997e+00 237
2019  2 2.14024e+01 7.93359e+00 195
2019  3 1.72357e+01 9.62350e+00 259
2019  4 2.11912e+01 1.34251e+01 105
2019  5 2.26608e+01 1.57801e+01 124
2019  6 3.55271e+00 2.76539e+00 20
2019  7 1.27143e+01 6.09140e+00 43
2019  8 2.51764e+01 1.68678e+01 14
2019  9 1.43500e+01 1.94559e+01 76
2019 10 2.45611e+01 9.72991e+00 72
2019 11 2.78032e+01 5.84561e+00 172
2019 12 2.93044e+01 4.66384e+00 43
2020  1 3.26226e+01 1.07639e+01 252
2020  2 3.02807e+01 8.33234e+00 196
2020  3 3.48139e+01 1.58293e+01 67
2020  4 2.27847e+01 8.79256e+00 113
2020  5 1.92689e+01 1.24510e+01 107
2020  6 1.99082e+01 1.46180e+01 78
2020  7 nan nan 0
2020  8 3.15949e+01 1.56738e+01 51
2020  9 2.20137e+01 1.00615e+01 80
2020 10 2.48594e+01 1.00006e+01 134
2020 11 1.22680e+01 8.66602e+00 144
2020 12 2.33018e+01 1.43239e+01 211
2021  1 3.41346e+01 1.30255e+01 236
2021  2 3.72791e+01 1.20433e+01 257
2021  3 3.26516e+01 1.77036e+01 115
2021  4 2.01847e+01 1.60113e+01 147
2021  5 3.33577e+01 1.15834e+01 130
2021  6 3.52454e+01 1.28266e+01 58
2021  7 nan nan 0
2021  8 6.22561e+00 0.00000e+00 1
2021  9 9.63582e+00 7.29940e+00 79
2021 10 1.05376e+01 1.03690e+01 118
2021 11 1.10635e+01 9.06808e+00 364
2021 12 1.67827e+01 9.08165e+00 262
2022  1 2.23171e+01 1.20659e+01 328
2022  2 2.81532e+01 1.25249e+01 277
2022  3 2.87920e+01 1.60791e+01 226
2022  4 nan nan 0
2022  5 1.56675e+01 8.55948e+00 114
2022  6 1.64195e+01 1.60401e+00 10
2022  7 3.77978e+01 1.09582e+01 64
2022  8 2.36601e+01 1.68101e+01 29
2022  9 8.55923e+00 4.54898e+00 112
2022 10 1.76311e+01 2.02372e+01 213
2022 11 1.00212e+01 7.87541e+00 45
2022 12 1.12139e+01 6.30775e+00 187
2023  1 1.91668e+01 1.23850e+01 555
2023  2 2.71821e+01 1.39869e+01 548
2023  3 1.90533e+01 8.38505e+00 304
2023  4 2.08089e+01 1.06276e+01 152
2023  5 1.42941e+01 9.07287e+00 175
2023  6 1.11095e+01 8.36614e+00 73
2023  7 3.40409e+01 1.57501e+01 109
2023  8 1.31536e+01 7.20153e+00 75
2023  9 1.66402e+01 8.84688e+00 163
2023 10 1.51042e+01 8.30187e+00 77
2023 11 1.51762e+01 1.06442e+01 356
2023 12 2.16865e+01 7.97012e+00 167
2024  1 2.53266e+01 6.35407e+00 114
2024  2 2.77115e+01 1.09395e+01 418
2024  3 2.63108e+01 1.32853e+01 246
2024  4 4.31430e+01 3.26780e+00 31