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 3.59140e+01 7.00414e+00 128
2002  8 3.02133e+01 6.45518e+00 85
2002  9 2.79741e+01 5.06152e+00 51
2002 10 2.37497e+01 4.11363e+00 242
2002 11 1.88947e+01 4.91476e+00 55
2002 12 1.72183e+01 4.98409e+00 41
2003  1 1.84074e+01 4.87406e+00 98
2003  2 2.01999e+01 4.18633e+00 159
2003  3 2.17286e+01 5.36691e+00 178
2003  4 2.96095e+01 7.43936e+00 167
2003  5 2.64287e+01 7.38076e+00 230
2003  6 1.43794e+01 0.00000e+00 1
2003  7 3.03584e+01 8.54540e+00 45
2003  8 2.87185e+01 7.81082e+00 32
2003  9 2.80467e+01 6.96298e+00 94
2003 10 2.20833e+01 6.48803e+00 263
2003 11 2.48424e+01 3.82476e+00 12
2003 12 1.52936e+01 3.61078e+00 9
2004  1 1.75812e+01 6.78766e+00 24
2004  2 2.00888e+01 4.74369e+00 51
2004  3 2.59539e+01 1.45608e+01 85
2004  4 2.60209e+01 7.96263e+00 32
2004  5 2.84235e+01 8.22056e+00 71
2004  6 2.90506e+01 7.65541e+00 154
2004  7 2.90606e+01 6.96304e+00 164
2004  8 2.75659e+01 6.67675e+00 127
2004  9 2.40375e+01 8.17061e+00 57
2004 10 2.28435e+01 6.61722e+00 35
2004 11 2.10253e+01 4.53626e+00 23
2004 12 2.05420e+01 7.36528e+00 27
2005  1 1.94656e+01 6.33987e+00 23
2005  2 1.81602e+01 7.16451e+00 59
2005  3 2.31463e+01 9.29208e+00 122
2005  4 2.62661e+01 7.60496e+00 47
2005  5 2.91917e+01 7.07602e+00 203
2005  6 2.82650e+01 8.43481e+00 88
2005  7 2.55063e+01 6.37492e+00 75
2005  8 3.25762e+01 6.97809e+00 84
2005  9 2.60070e+01 7.60919e+00 137
2005 10 2.24780e+01 4.78452e+00 30
2005 11 2.38613e+01 4.10219e+00 7
2005 12 1.54353e+01 3.42780e+00 303
2006  1 1.68523e+01 5.37834e+00 134
2006  2 2.29634e+01 5.54721e+00 45
2006  3 2.58088e+01 5.24735e+00 68
2006  4 3.23282e+01 7.31773e+00 190
2006  5 3.21617e+01 9.05601e+00 189
2006  6 2.63504e+01 6.76302e+00 115
2006  7 2.86975e+01 7.37020e+00 66
2006  8 2.87176e+01 6.41025e+00 145
2006  9 2.52663e+01 6.71793e+00 107
2006 10 2.46420e+01 5.48088e+00 141
2006 11 2.30751e+01 4.23299e+00 49
2006 12 1.43240e+01 6.41085e+00 12
2007  1 1.61686e+01 5.32860e+00 54
2007  2 2.37748e+01 7.39708e+00 42
2007  3 2.46491e+01 7.18454e+00 53
2007  4 2.71962e+01 7.42880e+00 79
2007  5 2.78878e+01 7.91059e+00 92
2007  6 3.02736e+01 7.90905e+00 64
2007  7 3.20856e+01 7.91795e+00 88
2007  8 3.00874e+01 7.94915e+00 102
2007  9 2.45216e+01 5.39509e+00 82
2007 10 2.67422e+01 6.19629e+00 58
2007 11 2.25117e+01 6.51885e+00 31
2007 12 2.33146e+01 4.19267e+00 16
2008  1 1.74130e+01 7.18671e+00 16
2008  2 2.24206e+01 6.21011e+00 27
2008  3 2.13842e+01 8.28581e+00 50
2008  4 3.26303e+01 9.57503e+00 48
2008  5 3.17370e+01 8.58662e+00 101
2008  6 3.09438e+01 9.51304e+00 50
2008  7 2.73571e+01 8.62887e+00 126
2008  8 2.98695e+01 6.93222e+00 179
2008  9 3.17812e+01 6.62219e+00 13
2008 10 2.68203e+01 9.20024e+00 26
2008 11 2.32248e+01 3.70298e+00 71
2008 12 1.98599e+01 4.02996e+00 18
2009  1 2.03144e+01 5.35151e+00 56
2009  2 2.29717e+01 7.40284e+00 23
2009  3 2.69832e+01 9.56705e+00 53
2009  4 2.77280e+01 5.99601e+00 191
2009  5 2.93024e+01 7.90436e+00 121
2009  6 3.53575e+01 1.05834e+01 121
2009  7 3.01120e+01 9.77782e+00 22
2009  8 2.92858e+01 6.14941e+00 126
2009  9 2.27404e+01 8.95779e+00 100
2009 10 2.16599e+01 6.42282e+00 256
2009 11 1.61600e+01 7.15672e+00 71
2009 12 1.63469e+01 7.05225e+00 25
2010  1 1.85695e+01 3.24749e+00 24
2010  2 2.23960e+01 5.08096e+00 36
2010  3 2.00332e+01 6.48481e+00 113
2010  4 2.51438e+01 5.43582e+00 81
2010  5 2.70469e+01 7.18875e+00 124
2010  6 3.41366e+01 9.39672e+00 69
2010  7 3.02397e+01 7.45253e+00 114
2010  8 2.96240e+01 9.71152e+00 16
2010  9 2.54568e+01 6.61806e+00 52
2010 10 2.06405e+01 5.97567e+00 110
2010 11 2.52996e+01 5.13159e+00 52
2010 12 1.71215e+01 7.16890e+00 61
2011  1 1.77519e+01 4.49202e+00 17
2011  2 2.39841e+01 4.75097e+00 39
2011  3 2.68621e+01 7.68439e+00 142
2011  4 2.33770e+01 8.20101e+00 203
2011  5 3.21185e+01 1.03013e+01 115
2011  6 3.10037e+01 6.60037e+00 152
2011  7 2.92108e+01 1.00668e+01 108
2011  8 2.85703e+01 7.91888e+00 46
2011  9 2.94138e+01 6.08832e+00 265
2011 10 2.20812e+01 7.18101e+00 59
2011 11 1.98278e+01 4.49054e+00 41
2011 12 1.73789e+01 7.77330e+00 40
2012  1 2.40445e+01 5.20127e+00 15
2012  2 3.00055e+01 3.59291e+00 12
2012  3 1.92757e+01 7.26947e+00 90
2012  4 3.02729e+01 8.17626e+00 100
2012  5 3.27546e+01 8.72453e+00 16
2012  6 3.31855e+01 6.34049e+00 170
2012  7 3.04451e+01 7.47184e+00 169
2012  8 2.87422e+01 7.83150e+00 93
2012  9 3.00600e+01 6.01397e+00 83
2012 10 2.08367e+01 8.51050e+00 109
2012 11 2.34374e+01 4.67011e+00 56
2012 12 1.99737e+01 4.67593e+00 41
2013  1 2.09700e+01 4.83860e+00 39
2013  2 1.88643e+01 6.91660e+00 53
2013  3 2.81453e+01 1.25555e+01 146
2013  4 2.57583e+01 8.23978e+00 89
2013  5 2.71447e+01 6.20590e+00 82
2013  6 3.73250e+01 6.04799e+00 20
2013  7 2.87596e+01 1.13577e+01 31
2013  8 2.38129e+01 9.38989e+00 26
2013  9 2.76299e+01 5.12657e+00 159
2013 10 2.57665e+01 6.13192e+00 113
2013 11 1.88336e+01 4.90055e+00 94
2013 12 1.71726e+01 5.97613e+00 72
2014  1 2.68118e+01 2.09270e+00 8
2014  2 2.24093e+01 6.42073e+00 68
2014  3 2.70292e+01 6.74137e+00 105
2014  4 3.17051e+01 6.62412e+00 138
2014  5 3.49497e+01 4.71039e+00 36
2014  6 2.88873e+01 9.02965e+00 99
2014  7 3.03500e+01 8.22861e+00 63
2014  8 2.98526e+01 7.72913e+00 134
2014  9 2.19268e+01 9.69973e+00 10
2014 10 2.56151e+01 5.24472e+00 106
2014 11 1.97451e+01 5.41640e+00 49
2014 12 1.91328e+01 2.66176e+00 2
2015  1 2.01256e+01 5.87941e+00 21
2015  2 2.18090e+01 7.04286e+00 35
2015  3 2.45264e+01 7.80115e+00 91
2015  4 2.79976e+01 6.31481e+00 65
2015  5 3.17914e+01 6.73718e+00 114
2015  6 2.98331e+01 9.87308e+00 82
2015  7 3.37254e+01 7.27633e+00 48
2015  8 3.53133e+01 6.09418e+00 137
2015  9 2.67715e+01 5.37292e+00 121
2015 10 2.36473e+01 1.09401e+01 63
2015 11 1.94541e+01 5.23640e+00 80
2015 12 1.47590e+01 3.08854e+00 41
2016  1 1.42130e+01 3.66823e+00 14
2016  2 3.16147e+01 3.46908e+00 20
2016  3 2.87645e+01 7.89689e+00 45
2016  4 2.70947e+01 5.72707e+00 62
2016  5 3.07131e+01 1.17655e+01 132
2016  6 3.19973e+01 7.55138e+00 107
2016  7 2.35467e+01 1.04984e+01 53
2016  8 2.58013e+01 1.21947e+01 53
2016  9 2.50035e+01 7.09096e+00 175
2016 10 2.66178e+01 4.95181e+00 42
2016 11 2.14127e+01 1.04359e+01 18
2016 12 1.62433e+01 4.17951e+00 43
2017  1 1.15338e+01 5.10337e+00 34
2017  2 1.85153e+01 7.11325e+00 109
2017  3 2.57534e+01 1.01634e+01 50
2017  4 2.39026e+01 6.40873e+00 49
2017  5 2.91673e+01 8.91148e+00 101
2017  6 3.45262e+01 5.83153e+00 24
2017  7 3.69939e+01 5.32194e+00 55
2017  8 3.35724e+01 6.69402e+00 185
2017  9 2.65043e+01 6.88823e+00 141
2017 10 2.58870e+01 4.16329e+00 16
2017 11 2.07602e+01 3.69507e+00 66
2017 12 1.93141e+01 4.15104e+00 56
2018  1 1.84533e+01 4.18408e+00 22
2018  2 2.21660e+01 7.72692e+00 63
2018  3 3.03610e+01 5.93484e+00 159
2018  4 3.17865e+01 9.23314e+00 111
2018  5 4.35662e+01 3.96852e+00 4
2018  6 3.05393e+01 1.10158e+01 75
2018  7 3.16177e+01 9.05370e+00 119
2018  8 2.54849e+01 7.55727e+00 100
2018  9 2.87251e+01 7.66331e+00 103
2018 10 1.47758e+01 7.89045e+00 173
2018 11 1.80233e+01 3.14385e+00 38
2018 12 1.69051e+01 7.34040e+00 32
2019  1 1.11506e+01 9.85503e+00 28
2019  2 1.84883e+01 7.75105e+00 76
2019  3 2.49413e+01 7.93538e+00 127
2019  4 3.24886e+01 1.05194e+01 105
2019  5 3.22987e+01 8.26209e+00 90
2019  6 3.01304e+01 1.09039e+01 74
2019  7 3.11043e+01 8.07810e+00 162
2019  8 3.31354e+01 5.99644e+00 32
2019  9 2.96936e+01 9.18482e+00 118
2019 10 2.19562e+01 9.05572e+00 106
2019 11 2.07879e+01 7.84957e+00 45
2019 12 2.28422e+01 2.64141e+00 21
2020  1 1.61696e+01 7.74035e+00 63
2020  2 2.22882e+01 8.58351e+00 21
2020  3 2.63351e+01 1.29567e+01 83
2020  4 2.97999e+01 5.97073e+00 127
2020  5 2.47656e+01 7.91164e+00 125
2020  6 3.36510e+01 1.07526e+01 53
2020  7 3.64524e+01 6.02527e+00 81
2020  8 2.51992e+01 1.10237e+01 143
2020  9 3.13274e+01 5.01977e+00 111
2020 10 2.32411e+01 6.35983e+00 64
2020 11 1.37812e+01 6.48066e+00 25
2020 12 1.41219e+01 7.08492e+00 90
2021  1 1.73657e+01 6.03704e+00 78
2021  2 2.30892e+01 4.86365e+00 65
2021  3 3.12242e+01 5.44610e+00 122
2021  4 3.50474e+01 7.77485e+00 56
2021  5 3.57390e+01 1.14598e+01 62
2021  6 3.18693e+01 6.48608e+00 89
2021  7 3.34733e+01 9.11219e+00 128
2021  8 3.02207e+01 8.47496e+00 67
2021  9 3.00605e+01 5.23221e+00 266
2021 10 1.74427e+01 7.06932e+00 39
2021 11 2.01335e+01 6.57260e+00 68
2021 12 1.71017e+01 3.87192e+00 169
2022  1 2.34094e+01 2.78192e+00 16
2022  2 1.39970e+01 8.90201e+00 57
2022  3 2.18001e+01 6.45351e+00 134
2022  4 2.73019e+01 1.27835e+01 10
2022  5 3.33118e+01 9.06914e+00 142
2022  6 3.51337e+01 6.96031e+00 174
2022  7 3.55401e+01 9.16001e+00 119
2022  8 3.55325e+01 9.36436e+00 87
2022  9 2.49218e+01 6.70892e+00 234
2022 10 2.19308e+01 5.39702e+00 100
2022 11 2.14868e+01 3.19947e+00 117
2022 12 1.96061e+01 5.31260e+00 83
2023  1 1.87024e+01 8.10942e+00 11
2023  2 2.17778e+01 7.09687e+00 75
2023  3 2.53226e+01 8.27682e+00 179
2023  4 3.02806e+01 1.21047e+01 69
2023  5 3.63288e+01 9.83023e+00 127
2023  6 3.48387e+01 7.82199e+00 84
2023  7 3.21305e+01 6.08291e+00 96
2023  8 3.05656e+01 8.34154e+00 25
2023  9 3.00695e+01 4.95564e+00 95
2023 10 2.29350e+01 9.47081e+00 135
2023 11 1.55400e+01 1.10942e+01 32
2023 12 1.86383e+01 4.00869e+00 36
2024  1 2.04568e+01 4.29263e+00 18
2024  2 2.93949e+01 7.65144e+00 36
2024  3 1.79216e+01 1.21651e+01 43
2024  4 nan nan 0