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 1.80657e+01 1.12592e+01 52
2002  8 2.77849e+01 1.09132e+01 151
2002  9 2.16750e+01 1.02161e+01 145
2002 10 1.71854e+01 9.59045e+00 246
2002 11 1.73143e+01 7.72197e+00 54
2002 12 1.39631e+01 7.31521e+00 66
2003  1 1.38765e+01 4.37358e+00 24
2003  2 1.30801e+01 9.52751e+00 67
2003  3 2.43874e+01 1.37854e+01 170
2003  4 3.15693e+01 1.33305e+01 126
2003  5 2.60320e+01 1.38060e+01 185
2003  6 2.88207e+01 1.24796e+01 35
2003  7 2.91315e+01 1.65660e+01 82
2003  8 2.57749e+01 1.49645e+01 46
2003  9 2.65916e+01 9.77895e+00 148
2003 10 2.03500e+01 8.55303e+00 314
2003 11 1.16549e+01 9.57682e+00 96
2003 12 1.27629e+01 5.28960e+00 28
2004  1 9.02522e+00 4.88431e+00 21
2004  2 1.64388e+01 6.77303e+00 65
2004  3 1.15729e+01 1.27232e+01 146
2004  4 2.38234e+01 1.02896e+01 122
2004  5 2.80204e+01 1.48095e+01 90
2004  6 2.88895e+01 1.47928e+01 283
2004  7 3.29473e+01 1.22677e+01 170
2004  8 1.95413e+01 1.23199e+01 97
2004  9 2.38422e+01 9.03161e+00 114
2004 10 1.71833e+01 8.76539e+00 254
2004 11 1.49217e+01 6.45145e+00 31
2004 12 1.06159e+01 3.02427e+00 25
2005  1 8.59181e+00 4.81431e+00 35
2005  2 8.52946e+00 8.25732e+00 54
2005  3 2.23334e+01 1.25809e+01 78
2005  4 2.85155e+01 1.53117e+01 54
2005  5 2.71970e+01 1.42410e+01 181
2005  6 6.84631e+00 8.33454e-01 5
2005  7 2.45045e+01 1.34232e+01 147
2005  8 2.94419e+01 1.33650e+01 56
2005  9 1.55467e+01 1.10580e+01 234
2005 10 2.42452e+01 9.55407e+00 96
2005 11 1.24429e+01 6.21752e+00 173
2005 12 1.30159e+01 6.18313e+00 298
2006  1 1.07315e+01 6.64645e+00 151
2006  2 1.11692e+01 7.57857e+00 36
2006  3 2.44980e+01 1.08514e+01 167
2006  4 1.97984e+01 1.39966e+01 185
2006  5 2.89356e+01 1.58536e+01 78
2006  6 3.45037e+01 1.23784e+01 137
2006  7 2.42145e+01 1.55839e+01 20
2006  8 2.05806e+01 1.20363e+01 65
2006  9 2.49427e+01 1.14116e+01 182
2006 10 1.99954e+01 9.48252e+00 113
2006 11 1.39134e+01 6.36827e+00 77
2006 12 6.66646e+00 4.69211e+00 30
2007  1 1.31615e+01 5.55925e+00 87
2007  2 5.84250e+00 3.89160e+00 24
2007  3 1.45798e+01 7.20933e+00 112
2007  4 1.93905e+01 1.20909e+01 163
2007  5 3.34970e+01 1.35618e+01 48
2007  6 2.57585e+01 1.31810e+01 144
2007  7 2.35624e+01 1.52297e+01 91
2007  8 2.12163e+01 1.00956e+01 117
2007  9 1.94711e+01 1.15693e+01 53
2007 10 1.35025e+01 3.49774e+00 26
2007 11 1.64150e+01 8.22818e+00 144
2007 12 9.75581e+00 6.62194e+00 89
2008  1 1.56130e+01 3.65902e+00 25
2008  2 1.19880e+01 6.28340e+00 37
2008  3 1.58401e+01 1.29000e+01 56
2008  4 2.44364e+01 1.40628e+01 55
2008  5 3.33337e+01 1.14326e+01 101
2008  6 1.98509e+01 1.36811e+01 34
2008  7 2.75782e+01 1.25817e+01 171
2008  8 2.69671e+01 1.26588e+01 219
2008  9 2.25763e+01 1.03240e+01 79
2008 10 2.56756e+01 7.59207e+00 164
2008 11 1.12443e+01 8.10125e+00 89
2008 12 6.26255e+00 5.67936e+00 47
2009  1 1.10170e+01 5.33327e+00 77
2009  2 1.10610e+01 7.87353e+00 87
2009  3 1.64079e+01 1.20947e+01 87
2009  4 2.45661e+01 1.40093e+01 144
2009  5 2.53697e+01 1.63250e+01 130
2009  6 3.17794e+01 1.48072e+01 110
2009  7 3.57104e+01 1.15773e+01 24
2009  8 2.76227e+01 1.48126e+01 95
2009  9 2.68156e+01 1.20839e+01 98
2009 10 2.14876e+01 9.03643e+00 183
2009 11 1.23724e+01 6.81458e+00 56
2009 12 1.46272e+01 8.38895e+00 42
2010  1 7.40098e+00 4.71487e+00 48
2010  2 8.35220e+00 8.16834e+00 8
2010  3 2.20138e+01 9.12289e+00 153
2010  4 2.23386e+01 1.06543e+01 165
2010  5 2.26213e+01 1.27539e+01 82
2010  6 2.43992e+01 1.24671e+01 146
2010  7 2.01114e+01 1.80946e+01 49
2010  8 2.37593e+01 1.45638e+01 63
2010  9 4.98476e+00 1.28603e+00 10
2010 10 2.02505e+01 9.58085e+00 212
2010 11 9.30090e+00 6.89256e+00 183
2010 12 7.68630e+00 5.92597e+00 78
2011  1 1.24062e+01 1.05081e+01 46
2011  2 1.46562e+01 7.18686e+00 94
2011  3 1.12228e+01 1.27857e+01 121
2011  4 2.40729e+01 1.10201e+01 146
2011  5 2.20099e+01 1.33961e+01 257
2011  6 1.34504e+01 8.09787e+00 59
2011  7 2.16043e+01 1.30812e+01 155
2011  8 1.47431e+01 1.27806e+01 29
2011  9 2.55002e+01 1.12433e+01 152
2011 10 1.46756e+01 6.39981e+00 85
2011 11 1.78795e+01 5.70558e+00 101
2011 12 1.11887e+01 6.94753e+00 54
2012  1 1.12623e+01 6.66475e+00 39
2012  2 1.16215e+01 8.04643e+00 128
2012  3 1.87550e+01 1.15805e+01 79
2012  4 1.39781e+01 7.94101e+00 72
2012  5 2.57518e+01 1.64342e+01 85
2012  6 3.11736e+01 1.43564e+01 99
2012  7 2.29462e+01 1.21056e+01 191
2012  8 3.44106e+01 1.01113e+01 121
2012  9 1.99467e+01 1.03944e+01 259
2012 10 1.20254e+01 9.89482e+00 123
2012 11 1.30417e+01 8.88801e+00 110
2012 12 1.21235e+01 5.74853e+00 48
2013  1 1.07809e+01 7.33908e+00 95
2013  2 9.02878e+00 6.74109e+00 132
2013  3 2.35249e+01 1.72397e+01 82
2013  4 1.86606e+01 1.22815e+01 96
2013  5 1.71929e+01 1.02778e+01 177
2013  6 1.57856e+01 4.70575e+00 27
2013  7 1.92450e+01 1.18827e+01 88
2013  8 3.06539e+01 1.43788e+01 153
2013  9 2.18648e+01 1.00119e+01 116
2013 10 1.70856e+01 8.45645e+00 171
2013 11 1.70603e+01 8.77592e+00 63
2013 12 1.15910e+01 4.05756e+00 28
2014  1 1.06628e+01 7.99208e+00 95
2014  2 1.25395e+01 8.55735e+00 131
2014  3 1.41993e+01 9.71532e+00 122
2014  4 2.12599e+01 1.61229e+01 179
2014  5 1.54332e+01 1.18460e+01 101
2014  6 1.22042e+01 6.76937e+00 58
2014  7 2.75030e+01 1.31933e+01 90
2014  8 2.69892e+01 1.37831e+01 166
2014  9 1.69239e+01 8.30857e+00 73
2014 10 1.71441e+01 1.16708e+01 253
2014 11 1.19440e+01 7.46519e+00 64
2014 12 1.51861e+01 6.75425e+00 85
2015  1 1.64541e+01 5.40948e+00 35
2015  2 1.12579e+01 7.14017e+00 87
2015  3 9.62819e+00 8.83390e+00 113
2015  4 2.18536e+01 1.02789e+01 71
2015  5 2.21845e+01 1.44211e+01 110
2015  6 1.93041e+01 1.62716e+01 82
2015  7 2.65484e+01 1.42062e+01 104
2015  8 2.77202e+01 1.34076e+01 89
2015  9 1.61965e+01 5.63985e+00 51
2015 10 1.50769e+01 8.23164e+00 65
2015 11 1.44414e+01 8.16553e+00 176
2015 12 1.36322e+01 8.17961e+00 13
2016  1 1.38624e+01 0.00000e+00 1
2016  2 1.80985e+01 5.58762e+00 67
2016  3 1.14246e+01 7.79295e+00 19
2016  4 2.11701e+01 1.35196e+01 98
2016  5 2.99210e+01 1.20575e+01 132
2016  6 2.13858e+01 1.33154e+01 159
2016  7 2.42772e+01 1.06175e+01 145
2016  8 2.65340e+01 1.19877e+01 91
2016  9 2.46581e+01 1.40867e+01 85
2016 10 1.49450e+01 8.80366e+00 31
2016 11 9.12207e+00 5.59668e+00 64
2016 12 1.32153e+01 6.06127e+00 45
2017  1 9.48099e+00 6.42908e+00 53
2017  2 2.13042e+01 1.03056e+01 54
2017  3 9.82753e+00 7.32827e+00 120
2017  4 1.60604e+01 1.25540e+01 59
2017  5 1.85145e+01 1.27029e+01 169
2017  6 2.13815e+01 6.96356e+00 32
2017  7 2.72824e+01 1.48248e+01 173
2017  8 1.94258e+01 1.07359e+01 131
2017  9 1.29546e+01 1.16699e+01 187
2017 10 1.29768e+01 8.65839e+00 158
2017 11 1.51070e+01 7.12420e+00 254
2017 12 1.00249e+01 6.77105e+00 160
2018  1 1.65776e+01 3.46403e+00 46
2018  2 1.42223e+01 8.55086e+00 190
2018  3 1.50567e+01 9.64407e+00 235
2018  4 1.67219e+01 1.41648e+01 68
2018  5 2.64025e+01 1.44069e+01 27
2018  6 1.34713e+01 1.10878e+01 70
2018  7 1.43928e+01 7.78976e+00 85
2018  8 2.74102e+01 1.18499e+01 74
2018  9 2.32313e+01 1.12998e+01 169
2018 10 1.46295e+01 6.58709e+00 96
2018 11 1.54160e+01 9.06260e+00 85
2018 12 9.91027e+00 5.33278e+00 24
2019  1 1.15492e+01 6.84285e+00 44
2019  2 9.27335e+00 7.60148e+00 101
2019  3 1.35428e+01 1.20070e+01 113
2019  4 1.78131e+01 1.47551e+01 95
2019  5 2.24593e+01 1.47697e+01 125
2019  6 2.85877e+01 1.46079e+01 183
2019  7 1.91982e+01 9.51822e+00 62
2019  8 3.04473e+01 1.23374e+01 76
2019  9 2.31984e+01 1.24369e+01 40
2019 10 1.72100e+01 7.71477e+00 97
2019 11 9.83856e+00 6.37958e+00 118
2019 12 9.82151e+00 5.79266e+00 26
2020  1 1.22029e+01 8.19596e+00 157
2020  2 1.07460e+01 7.58861e+00 43
2020  3 1.45426e+01 1.12212e+01 87
2020  4 2.11174e+01 1.40552e+01 126
2020  5 2.72470e+01 1.41234e+01 89
2020  6 2.15939e+01 1.37211e+01 93
2020  7 2.77959e+01 1.32250e+01 174
2020  8 2.43047e+01 1.55120e+01 136
2020  9 1.51851e+01 9.26503e+00 102
2020 10 2.06610e+01 9.32197e+00 192
2020 11 9.66157e+00 4.88853e+00 59
2020 12 1.54048e+01 7.13927e+00 125
2021  1 1.67140e+01 7.40277e+00 95
2021  2 1.30576e+01 9.83706e+00 66
2021  3 1.63647e+01 9.52064e+00 138
2021  4 1.73685e+01 1.53382e+01 119
2021  5 1.95501e+01 1.39049e+01 107
2021  6 3.38540e+01 1.58278e+01 50
2021  7 1.17758e+01 8.73685e+00 98
2021  8 2.21474e+01 1.29642e+01 144
2021  9 1.37905e+01 7.70607e+00 69
2021 10 1.58697e+01 7.95192e+00 145
2021 11 1.47647e+01 7.01195e+00 157
2021 12 1.30619e+01 8.41954e+00 151
2022  1 1.38109e+01 5.57311e+00 45
2022  2 1.74146e+01 9.99671e+00 84
2022  3 1.38868e+01 7.59669e+00 40
2022  4 2.54418e+01 1.26732e+01 69
2022  5 1.98006e+01 1.20996e+01 204
2022  6 2.67919e+01 1.32506e+01 200
2022  7 1.80501e+01 1.34377e+01 130
2022  8 1.56743e+01 1.33731e+01 64
2022  9 2.23029e+01 1.17281e+01 220
2022 10 1.92398e+01 8.76425e+00 121
2022 11 1.32600e+01 6.50541e+00 84
2022 12 1.09323e+01 5.48920e+00 100
2023  1 1.32202e+01 7.16444e+00 112
2023  2 1.34700e+01 8.56731e+00 74
2023  3 1.10794e+01 9.12512e+00 121
2023  4 1.70131e+01 1.29275e+01 145
2023  5 1.45455e+01 8.11667e+00 91
2023  6 3.21329e+01 1.42587e+01 117
2023  7 1.84929e+01 1.15139e+01 79
2023  8 2.71841e+01 1.07297e+01 98
2023  9 2.20431e+01 1.19049e+01 82
2023 10 1.77832e+01 9.52675e+00 91
2023 11 1.34251e+01 5.57934e+00 83
2023 12 1.33654e+01 7.86398e+00 72
2024  1 1.31286e+01 7.77826e+00 148
2024  2 8.48038e+00 5.76150e+00 53
2024  3 1.72109e+01 1.08372e+01 133
2024  4 1.77644e+01 7.98702e+00 18