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 1.71996e+01 4.12366e+00 48
2002  8 1.57015e+01 6.81277e+00 210
2002  9 1.23132e+01 5.81354e+00 138
2002 10 1.07906e+01 5.17970e+00 83
2002 11 1.98048e+01 5.26181e+00 79
2002 12 1.04686e+01 9.39018e+00 186
2003  1 4.41305e+00 6.03215e+00 77
2003  2 1.94732e+01 5.57301e+00 87
2003  3 1.76583e+01 8.56706e+00 66
2003  4 1.44053e+01 7.56203e+00 122
2003  5 1.37345e+01 8.14867e+00 102
2003  6 1.10104e+01 6.79711e+00 32
2003  7 1.50339e+01 6.46158e+00 79
2003  8 1.40333e+01 6.50238e+00 78
2003  9 1.57412e+01 4.80256e+00 97
2003 10 1.89696e+01 5.34237e+00 120
2003 11 1.18552e+01 8.24909e+00 62
2003 12 4.72421e+00 7.62689e+00 116
2004  1 2.92611e+01 2.39699e+00 8
2004  2 2.02464e+01 6.73397e+00 38
2004  3 1.38733e+01 9.73586e+00 54
2004  4 1.01156e+01 8.68763e+00 60
2004  5 9.45029e+00 7.52300e+00 65
2004  6 8.67598e+00 5.63292e+00 39
2004  7 3.59868e+00 5.68092e+00 30
2004  8 1.08550e+01 4.02455e+00 103
2004  9 9.39834e+00 6.56020e+00 202
2004 10 1.28181e+01 4.24297e+00 128
2004 11 1.48082e+01 6.31898e+00 103
2004 12 8.55705e+00 1.10579e+01 42
2005  1 nan nan 0
2005  2 1.57388e+01 1.01097e+01 33
2005  3 1.41256e+01 9.22992e+00 170
2005  4 1.53113e+01 8.58764e+00 132
2005  5 2.13080e+01 4.98893e+00 49
2005  6 2.12368e+01 5.28437e+00 75
2005  7 2.63131e+01 7.83614e+00 103
2005  8 2.22243e+01 6.39860e+00 145
2005  9 1.57047e+01 5.67247e+00 142
2005 10 1.34352e+01 4.50865e+00 114
2005 11 1.67093e+01 5.77749e+00 19
2005 12 2.02346e+01 9.55938e+00 80
2006  1 6.80732e+00 6.33564e+00 91
2006  2 1.72463e+01 1.29504e+01 67
2006  3 1.90502e+01 1.11023e+01 104
2006  4 2.52880e+01 8.34866e+00 100
2006  5 2.20214e+01 6.65742e+00 80
2006  6 1.12246e+01 6.49009e+00 87
2006  7 2.42206e+01 3.66416e+00 55
2006  8 1.03415e+01 5.93961e+00 154
2006  9 1.60035e+01 8.12843e+00 85
2006 10 1.39760e+01 7.25654e+00 77
2006 11 1.41824e+01 7.14283e+00 64
2006 12 1.69564e+01 6.35439e+00 66
2007  1 1.20645e+01 6.87264e+00 111
2007  2 nan nan 0
2007  3 7.30349e+00 7.67627e+00 78
2007  4 1.61480e+01 8.17122e+00 86
2007  5 2.17510e+01 6.14052e+00 82
2007  6 2.09262e+01 7.70166e+00 100
2007  7 2.89546e+01 7.24124e+00 85
2007  8 2.59189e+01 6.48715e+00 97
2007  9 1.47718e+01 7.39916e+00 177
2007 10 1.28813e+01 5.66788e+00 95
2007 11 1.58404e+01 7.24145e+00 53
2007 12 1.28156e+01 8.71513e+00 3
2008  1 nan nan 0
2008  2 1.18718e+01 1.43382e+01 34
2008  3 1.58974e+01 9.01512e+00 90
2008  4 1.44447e+01 8.81727e+00 41
2008  5 7.11971e+00 5.53411e+00 55
2008  6 2.27108e+00 1.46853e+00 17
2008  7 1.17118e+01 1.04551e+01 94
2008  8 9.56567e+00 6.06314e+00 148
2008  9 1.49339e+01 5.65272e+00 87
2008 10 1.15617e+01 4.62342e+00 140
2008 11 8.92300e+00 6.33376e+00 21
2008 12 6.03284e+00 4.83137e+00 10
2009  1 nan nan 0
2009  2 2.71232e+01 1.00635e+01 68
2009  3 1.85243e+01 1.02698e+01 124
2009  4 1.95807e+01 5.88886e+00 121
2009  5 2.22818e+01 7.84642e+00 71
2009  6 2.34978e+01 5.78413e+00 22
2009  7 1.76162e+01 5.31759e+00 22
2009  8 1.01960e+01 9.32903e+00 92
2009  9 1.51383e+01 6.63744e+00 196
2009 10 1.40051e+01 5.45053e+00 28
2009 11 1.02797e+01 7.68377e+00 39
2009 12 3.46999e+00 3.79586e+00 45
2010  1 nan nan 0
2010  2 2.77903e+01 5.25332e+00 34
2010  3 2.56218e+01 8.86316e+00 220
2010  4 1.77427e+01 8.33668e+00 103
2010  5 2.00867e+01 7.22117e+00 72
2010  6 1.83219e+01 9.82300e+00 53
2010  7 1.37752e+01 7.57938e+00 31
2010  8 8.89204e+00 8.75306e+00 120
2010  9 8.86138e+00 5.55736e+00 75
2010 10 8.87196e+00 7.65977e+00 135
2010 11 1.00281e+01 7.59999e+00 81
2010 12 8.77261e+00 8.58705e+00 55
2011  1 1.25852e+01 8.95914e+00 32
2011  2 1.99327e+01 8.30563e+00 65
2011  3 1.89779e+01 7.65976e+00 130
2011  4 9.62677e+00 8.83891e+00 62
2011  5 2.57395e+01 7.35456e+00 26
2011  6 1.05353e+01 9.93510e+00 58
2011  7 1.12409e+01 5.43333e+00 112
2011  8 1.11723e+01 7.96830e+00 127
2011  9 6.89773e+00 6.82904e+00 126
2011 10 1.17874e+01 7.10702e+00 133
2011 11 2.24364e+01 2.01291e+00 19
2011 12 1.32022e+01 8.93063e+00 105
2012  1 2.23572e+01 6.42701e+00 89
2012  2 1.18686e+01 9.70938e+00 98
2012  3 1.50847e+01 7.32459e+00 100
2012  4 1.86973e+01 6.54503e+00 121
2012  5 1.33912e+01 1.24622e+01 56
2012  6 1.93730e+01 6.24357e+00 79
2012  7 1.73352e+01 7.62938e+00 93
2012  8 1.87767e+01 6.14608e+00 80
2012  9 1.24969e+01 6.35655e+00 104
2012 10 1.19547e+01 7.32258e+00 71
2012 11 2.13127e+01 9.68577e+00 102
2012 12 2.83072e+01 3.10694e+00 16
2013  1 1.98563e+01 9.13487e+00 137
2013  2 3.11985e+01 0.00000e+00 2
2013  3 2.29944e+01 1.03338e+01 58
2013  4 1.73286e+01 1.09283e+01 79
2013  5 1.99036e+01 1.12040e+01 81
2013  6 1.70241e+01 7.32318e+00 32
2013  7 2.08481e+01 6.07319e+00 137
2013  8 1.95099e+01 3.60337e+00 67
2013  9 1.49856e+01 6.74856e+00 171
2013 10 1.64473e+01 3.74470e+00 62
2013 11 1.70605e+01 9.40246e+00 58
2013 12 1.42751e+01 8.51721e+00 59
2014  1 nan nan 0
2014  2 2.56916e+01 5.70918e+00 24
2014  3 2.26237e+01 7.95863e-01 3
2014  4 2.43275e+01 7.20851e+00 48
2014  5 1.89687e+01 1.18108e+01 59
2014  6 1.45934e+01 7.71183e+00 49
2014  7 2.76206e+01 8.29328e-01 3
2014  8 1.27048e+01 4.95375e+00 67
2014  9 1.49782e+01 6.56768e+00 127
2014 10 1.68387e+01 7.53287e+00 111
2014 11 nan nan 0
2014 12 5.89008e+00 4.97879e+00 53
2015  1 2.41766e+01 6.88209e+00 54
2015  2 2.53631e+01 3.46601e+00 23
2015  3 2.57951e+01 6.72394e+00 188
2015  4 2.78309e+01 6.45881e+00 80
2015  5 3.35709e+01 7.32800e+00 54
2015  6 1.36456e+01 8.92669e+00 65
2015  7 2.74728e+01 5.35777e+00 111
2015  8 1.71472e+01 6.17987e+00 58
2015  9 6.95472e+00 6.60983e+00 123
2015 10 1.35144e+01 5.59124e+00 108
2015 11 1.63368e+01 1.23254e+01 137
2015 12 1.90752e+01 6.97863e+00 54
2016  1 1.11007e+01 9.89009e+00 43
2016  2 1.56732e+01 1.02972e+01 51
2016  3 8.42260e+00 5.95397e+00 64
2016  4 2.05973e+01 1.10623e+01 52
2016  5 1.77195e+01 8.38130e+00 88
2016  6 1.44791e+01 4.24270e+00 64
2016  7 1.73548e+01 6.25580e+00 109
2016  8 1.30450e+01 5.50687e+00 146
2016  9 5.60483e+00 4.77662e+00 145
2016 10 1.29338e+01 7.58132e+00 36
2016 11 1.07741e+01 5.19302e+00 146
2016 12 1.90483e+01 8.17184e+00 18
2017  1 1.84374e+01 7.63570e+00 62
2017  2 2.57678e+01 1.12906e+01 123
2017  3 1.82792e+01 7.97932e+00 53
2017  4 1.74654e+01 8.62524e+00 67
2017  5 1.25919e+01 7.65724e+00 124
2017  6 1.00848e+01 6.59378e+00 69
2017  7 4.74300e+00 6.22787e+00 134
2017  8 1.19910e+01 9.44519e+00 82
2017  9 1.36147e+01 3.85284e+00 192
2017 10 1.42873e+01 8.11766e+00 153
2017 11 1.62139e+01 4.84651e+00 44
2017 12 2.31058e+01 4.45907e+00 23
2018  1 2.27822e+01 9.29424e+00 33
2018  2 2.18413e+01 1.07794e+01 63
2018  3 1.68262e+01 8.57786e+00 187
2018  4 1.69870e+01 9.66364e+00 103
2018  5 1.07351e+01 8.85179e+00 53
2018  6 2.55139e+01 6.02870e+00 12
2018  7 2.03913e+01 5.78532e+00 105
2018  8 2.13068e+01 4.66351e+00 65
2018  9 7.94577e+00 5.43973e+00 191
2018 10 9.29838e+00 2.89865e+00 32
2018 11 5.97564e+00 6.23022e+00 55
2018 12 4.81291e+00 5.53319e+00 136
2019  1 2.18900e+01 4.70663e+00 30
2019  2 7.69411e+00 7.02196e+00 26
2019  3 1.56041e+01 1.03996e+01 72
2019  4 2.28728e+01 7.86184e+00 69
2019  5 1.80230e+01 6.73171e+00 54
2019  6 5.14965e+00 7.23203e+00 12
2019  7 6.73657e+00 3.79274e+00 59
2019  8 9.42181e+00 6.78145e+00 123
2019  9 1.75989e+00 2.14443e+00 11
2019 10 9.58716e+00 6.81477e+00 117
2019 11 1.08292e+01 6.95571e+00 72
2019 12 4.17545e+00 5.11950e+00 46
2020  1 1.13431e+01 8.61590e+00 66
2020  2 7.60198e+00 7.75490e+00 118
2020  3 8.25153e+00 6.14431e+00 63
2020  4 1.72137e+01 1.02005e+01 58
2020  5 8.91692e+00 6.27120e+00 65
2020  6 3.30855e+00 2.41976e+00 125
2020  7 7.05148e+00 5.04303e+00 103
2020  8 5.21292e+00 2.31505e+00 24
2020  9 6.51316e+00 1.65425e+00 45
2020 10 9.25825e+00 3.07221e+00 63
2020 11 6.52549e+00 7.21553e+00 178
2020 12 4.89991e+00 5.44847e+00 74
2021  1 8.69569e+00 9.28435e+00 60
2021  2 1.80645e+01 1.16204e+01 74
2021  3 1.63199e+01 9.50290e+00 175
2021  4 2.40542e+01 8.39863e+00 93
2021  5 2.06789e+01 4.24992e+00 33
2021  6 2.37860e+01 4.17732e+00 123
2021  7 8.93922e+00 7.50933e+00 68
2021  8 8.49466e+00 6.09561e+00 134
2021  9 6.18789e+00 4.08726e+00 101
2021 10 9.65454e+00 3.69158e+00 55
2021 11 1.33983e+01 6.72176e+00 58
2021 12 2.36410e+01 2.30858e+00 14
2022  1 3.70578e+00 5.42647e+00 42
2022  2 nan nan 0
2022  3 1.53883e+01 1.37981e+01 51
2022  4 nan nan 0
2022  5 2.06532e+01 8.36578e+00 37
2022  6 1.22441e+01 8.11882e+00 70
2022  7 2.68440e+01 4.10942e+00 48
2022  8 1.38566e+01 6.76635e+00 147
2022  9 1.48286e+01 6.88761e+00 127
2022 10 1.46990e+01 5.70405e+00 386
2022 11 1.52885e+01 9.06390e+00 345
2022 12 1.42631e+01 7.52819e+00 59
2023  1 1.27570e+01 1.03139e+01 175
2023  2 1.34423e+01 1.18469e+01 425
2023  3 1.05771e+01 1.10918e+01 284
2023  4 1.53951e+01 1.04091e+01 244
2023  5 1.34536e+01 7.95029e+00 313
2023  6 2.07309e+01 7.86825e+00 57
2023  7 1.56140e+01 8.09302e+00 182
2023  8 1.34845e+01 8.87144e+00 133
2023  9 1.38601e+01 6.10488e+00 199
2023 10 1.24358e+01 7.72280e+00 121
2023 11 1.96411e+01 8.53308e+00 291
2023 12 2.55043e+01 7.71745e+00 66
2024  1 2.77273e-01 3.21491e-01 81
2024  2 1.43443e+01 1.05442e+01 176
2024  3 1.83533e+01 1.17633e+01 251
2024  4 nan nan 0