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 nan nan 0
2002  8 3.16231e+01 1.00017e+01 59
2002  9 3.22466e+01 9.37779e+00 62
2002 10 2.13197e+01 7.59086e+00 110
2002 11 1.28254e+01 7.92354e+00 240
2002 12 8.90211e+00 5.14103e+00 123
2003  1 2.62279e+00 3.02509e+00 236
2003  2 1.20213e+01 5.32407e+00 160
2003  3 2.55965e+00 1.04706e+00 32
2003  4 2.47298e+00 2.24505e+00 46
2003  5 6.58749e+00 8.40173e-01 16
2003  6 2.42639e+00 2.07322e+00 29
2003  7 1.26185e+01 1.53644e+00 16
2003  8 2.78314e+01 1.32402e+00 5
2003  9 2.25080e+01 1.61332e+01 89
2003 10 1.50790e+01 1.31204e+01 176
2003 11 1.75598e+01 1.23526e+01 243
2003 12 6.09973e+00 7.00968e+00 193
2004  1 8.65325e+00 6.92016e+00 160
2004  2 1.84777e+01 5.98718e+00 64
2004  3 1.10415e+01 9.61301e+00 164
2004  4 2.59162e+00 3.50130e+00 94
2004  5 1.65567e+01 8.09900e+00 112
2004  6 2.13620e+01 1.23084e+01 64
2004  7 1.56864e+01 9.82036e+00 58
2004  8 2.15608e+01 1.14652e+01 81
2004  9 2.40488e+01 2.02654e+01 52
2004 10 1.92036e+01 2.20669e+01 64
2004 11 1.74053e+00 2.22013e+00 116
2004 12 2.04292e+00 3.75085e+00 111
2005  1 3.48753e+00 3.72628e+00 144
2005  2 8.21737e+00 5.32674e+00 112
2005  3 3.60943e+00 3.18415e+00 128
2005  4 4.29566e+00 2.98421e+00 36
2005  5 1.25474e+01 1.33258e+01 46
2005  6 9.00147e+00 7.83700e+00 61
2005  7 4.25527e+00 4.67815e+00 61
2005  8 7.05499e+00 8.01710e+00 62
2005  9 1.33505e+01 7.62118e+00 64
2005 10 1.19232e+01 1.17184e+01 181
2005 11 1.13611e+01 9.67914e+00 247
2005 12 6.80726e+00 6.34116e+00 183
2006  1 7.42798e+00 6.44441e+00 188
2006  2 3.03746e+00 3.61761e+00 147
2006  3 6.27501e+00 5.04836e+00 272
2006  4 3.92063e+00 3.01162e+00 74
2006  5 1.29631e+01 8.80873e+00 120
2006  6 2.15500e+01 9.22686e+00 56
2006  7 4.01267e+00 3.01175e+00 24
2006  8 1.76180e+01 1.68097e+01 49
2006  9 1.38270e+01 9.12820e+00 139
2006 10 1.84008e+01 1.06195e+01 226
2006 11 1.29651e+01 1.00959e+01 206
2006 12 2.40636e+01 1.07302e+01 119
2007  1 1.75510e+01 1.39323e+01 128
2007  2 1.70137e+01 9.21911e+00 245
2007  3 2.53987e+01 1.22014e+01 240
2007  4 1.03522e+01 7.63256e+00 159
2007  5 2.15686e+01 6.56152e-01 16
2007  6 2.11110e+01 1.42643e+00 16
2007  7 1.51076e+01 8.56973e+00 60
2007  8 2.50357e+01 7.74245e+00 83
2007  9 2.39430e+01 6.57195e+00 105
2007 10 2.91761e+01 1.06253e+01 160
2007 11 2.55832e+01 1.04475e+01 254
2007 12 3.08041e+01 1.41057e+01 208
2008  1 1.76201e+01 1.33249e+01 204
2008  2 2.39316e+01 1.11020e+01 297
2008  3 1.87432e+01 8.54236e+00 223
2008  4 1.60475e+01 7.16970e+00 114
2008  5 2.31545e+01 1.68119e+01 90
2008  6 1.23149e+01 8.73520e+00 54
2008  7 2.13489e+01 1.13197e+01 54
2008  8 1.66261e+01 5.01408e+00 32
2008  9 9.71465e+00 7.04218e+00 108
2008 10 1.28454e+01 5.54458e+00 192
2008 11 9.29985e+00 6.42989e+00 208
2008 12 1.00109e+01 7.35681e+00 198
2009  1 7.81456e+00 4.74497e+00 159
2009  2 1.16957e+01 7.95718e+00 240
2009  3 1.90338e+01 1.15125e+01 216
2009  4 8.91478e+00 1.09110e+01 100
2009  5 1.06615e+01 1.06152e+01 59
2009  6 1.68383e+01 7.35137e+00 68
2009  7 2.17162e+01 1.92568e+01 39
2009  8 1.04516e+01 9.76814e+00 70
2009  9 1.76806e+01 7.47732e+00 64
2009 10 1.75948e+01 1.25723e+01 203
2009 11 1.57206e+01 1.25271e+01 128
2009 12 1.14857e+01 5.08793e+00 44
2010  1 2.83316e+00 3.08663e+00 192
2010  2 2.81651e+00 3.05645e+00 97
2010  3 2.52284e-01 2.12020e-01 85
2010  4 2.03421e+00 3.28302e+00 94
2010  5 1.24262e+01 1.17315e+01 80
2010  6 1.59054e+01 1.05711e+01 71
2010  7 1.98366e+01 5.63671e+00 18
2010  8 3.80399e-02 5.55392e-02 4
2010  9 1.24113e+01 7.36312e+00 75
2010 10 1.17894e+01 8.70985e+00 286
2010 11 1.65342e+01 9.74772e+00 262
2010 12 1.21650e+01 9.42808e+00 231
2011  1 1.37279e+01 1.15529e+01 160
2011  2 2.20484e+01 8.95321e+00 151
2011  3 2.02920e+01 1.10472e+01 184
2011  4 1.68933e+01 9.42876e+00 128
2011  5 1.02114e+01 6.55204e+00 104
2011  6 2.34686e+00 1.82724e+00 31
2011  7 1.88191e+01 9.46611e+00 53
2011  8 1.55118e+01 6.54375e+00 92
2011  9 2.31562e+01 1.37483e+01 144
2011 10 2.02138e+01 1.12875e+01 223
2011 11 2.15211e+01 8.36895e+00 187
2011 12 2.69108e+01 1.15874e+01 228
2012  1 1.13259e+01 8.20167e+00 269
2012  2 1.45181e+01 8.79104e+00 48
2012  3 2.33982e+01 1.19864e+01 220
2012  4 1.49264e+01 7.92543e+00 171
2012  5 2.10077e+01 1.25725e+01 102
2012  6 1.83188e+01 5.42569e+00 42
2012  7 7.46614e+00 1.82197e+00 16
2012  8 1.95812e+00 8.24830e-01 18
2012  9 3.89164e+00 4.55244e+00 108
2012 10 5.50274e+00 5.67190e+00 183
2012 11 6.08717e+00 5.53823e+00 204
2012 12 1.02080e+01 9.59964e+00 109
2013  1 1.87268e+01 1.56404e+01 148
2013  2 6.65756e+00 4.66640e+00 160
2013  3 7.54556e+00 4.92202e+00 128
2013  4 3.04234e+01 1.57266e+01 76
2013  5 1.23758e+01 9.01201e+00 78
2013  6 3.92397e+01 1.77331e+01 49
2013  7 6.20250e+00 1.32691e+00 32
2013  8 3.81165e+00 1.46271e+01 21
2013  9 2.89820e+00 3.19955e+00 95
2013 10 1.77639e+01 1.69955e+01 178
2013 11 1.55466e+01 7.46996e+00 140
2013 12 1.65822e+01 9.81935e+00 200
2014  1 6.26630e+00 8.55555e+00 128
2014  2 1.00569e+01 8.41366e+00 148
2014  3 7.35666e+00 6.91585e+00 144
2014  4 1.24100e+00 1.66518e+00 48
2014  5 nan nan 0
2014  6 1.02041e+01 7.77253e+00 32
2014  7 1.71129e+01 1.48091e+01 64
2014  8 1.22499e+01 8.54377e+00 52
2014  9 2.72275e+01 2.12026e+01 64
2014 10 1.32944e+01 9.89906e+00 319
2014 11 1.03443e+01 9.18119e+00 248
2014 12 2.15499e+01 7.20685e+00 145
2015  1 1.99705e+01 1.50755e+01 217
2015  2 5.08301e+00 5.14834e+00 188
2015  3 1.20273e+01 8.50796e+00 95
2015  4 8.81599e+00 3.50137e+00 35
2015  5 2.25668e+01 8.87085e+00 66
2015  6 2.48444e+01 1.45858e+01 108
2015  7 6.38600e+01 9.78188e-01 16
2015  8 7.60715e+00 4.52170e+00 45
2015  9 4.72647e+00 5.63144e+00 48
2015 10 1.63621e+01 6.71032e+00 92
2015 11 8.67193e+00 5.61557e+00 128
2015 12 1.93768e+01 8.96385e+00 128
2016  1 9.10313e+00 6.23031e+00 176
2016  2 8.83305e+00 8.60823e+00 261
2016  3 9.07011e+00 5.43592e+00 184
2016  4 1.07527e+01 6.83865e+00 116
2016  5 1.29422e+01 8.03342e+00 70
2016  6 2.12530e+01 1.03322e+01 70
2016  7 2.22044e+01 2.54651e+01 103
2016  8 9.23122e+00 8.84122e+00 119
2016  9 1.23588e+01 8.68568e+00 128
2016 10 1.02095e+01 9.15716e+00 131
2016 11 1.84130e+01 7.81922e+00 189
2016 12 2.18447e+01 1.00358e+01 188
2017  1 1.89612e+01 1.30084e+01 160
2017  2 1.30647e+01 8.27303e+00 259
2017  3 2.18115e+01 1.00197e+01 238
2017  4 1.37842e+01 8.49482e+00 144
2017  5 1.45894e+01 8.03228e+00 80
2017  6 5.45617e+01 2.31621e+01 41
2017  7 1.88742e+01 1.63648e+01 40
2017  8 1.77229e+01 1.19315e+01 74
2017  9 1.64445e+01 4.24954e+00 65
2017 10 7.80531e+00 8.83666e+00 151
2017 11 1.60609e+01 1.00102e+01 197
2017 12 1.53620e+01 1.35592e+01 174
2018  1 1.75417e+01 8.39024e+00 208
2018  2 2.01245e+01 6.67053e+00 128
2018  3 1.40356e+01 1.05988e+01 146
2018  4 9.72111e+00 9.26681e+00 108
2018  5 1.96939e+01 7.10830e+00 80
2018  6 1.55272e+01 1.61599e+01 64
2018  7 1.68114e+01 1.17910e+01 54
2018  8 1.59738e+01 1.64774e+01 80
2018  9 1.63996e+01 1.66523e+01 164
2018 10 1.16611e+01 9.07388e+00 196
2018 11 4.33251e+00 5.12873e+00 47
2018 12 2.56193e+00 3.76687e+00 158
2019  1 6.53034e-01 7.17345e-01 104
2019  2 5.51939e-01 4.76781e-01 48
2019  3 2.29523e+00 2.51476e+00 139
2019  4 8.07882e+00 5.29110e+00 105
2019  5 1.35572e+01 7.87827e+00 100
2019  6 1.28384e+01 5.59816e+00 39
2019  7 1.80455e+01 1.41786e+01 64
2019  8 2.08874e+01 1.97843e+01 55
2019  9 1.11334e+01 9.41398e+00 48
2019 10 1.72722e+01 1.05396e+01 125
2019 11 2.39452e+01 1.36206e+01 155
2019 12 1.06316e+01 8.96953e+00 128
2020  1 1.52025e+01 5.94348e+00 160
2020  2 1.63508e+01 9.17024e+00 128
2020  3 2.70301e+01 9.49399e+00 123
2020  4 7.24311e+00 4.82357e+00 116
2020  5 1.25969e+01 9.53384e+00 115
2020  6 1.41615e+01 8.19214e+00 53
2020  7 3.03373e+01 1.93166e+01 32
2020  8 7.38811e+00 5.15582e+00 44
2020  9 4.10030e+00 1.06516e+00 16
2020 10 1.21372e+01 1.52299e+01 92
2020 11 1.18123e+01 1.38833e+01 155
2020 12 8.01361e+00 4.90114e+00 125
2021  1 3.60883e+00 3.32163e+00 103
2021  2 1.09423e+01 8.26464e+00 128
2021  3 8.06907e+00 4.82259e+00 127
2021  4 1.01304e+01 6.26659e+00 62
2021  5 6.38142e+00 4.21844e+00 97
2021  6 2.05265e+01 5.19850e+00 48
2021  7 1.26258e+01 7.40142e+00 12
2021  8 7.11518e+00 2.13455e+01 10
2021  9 1.31277e+01 1.73947e+01 120
2021 10 5.78004e+00 4.51464e+00 99
2021 11 1.70657e+00 2.30477e+00 176
2021 12 1.42890e+01 1.54405e+01 127
2022  1 4.58380e+00 3.84887e+00 195
2022  2 1.58956e+01 7.84814e+00 166
2022  3 1.25867e+01 1.03846e+01 172
2022  4 9.01080e+00 3.05409e+00 16
2022  5 9.13756e+00 5.41991e+00 64
2022  6 2.13264e+01 1.44795e+01 62
2022  7 2.56094e+01 2.70919e+01 65
2022  8 1.36105e+01 1.55088e+01 134
2022  9 2.40418e+01 1.14215e+01 71
2022 10 1.34548e+01 6.40272e+00 241
2022 11 1.78334e+01 6.01114e+00 135
2022 12 2.04785e+01 1.22796e+01 232
2023  1 2.08618e+01 9.75778e+00 198
2023  2 2.33522e+01 1.04185e+01 131
2023  3 1.76707e+01 7.21329e+00 208
2023  4 2.43079e+01 8.96589e+00 48
2023  5 9.88712e+00 1.27120e+01 96
2023  6 2.97569e+01 1.85507e+01 48
2023  7 3.06515e+01 2.27879e+01 32
2023  8 2.45281e+01 1.30790e+01 96
2023  9 2.60460e+01 2.84839e+01 74
2023 10 1.34140e+01 9.89039e+00 112
2023 11 1.77141e+01 1.31233e+01 200
2023 12 1.10843e+01 1.11308e+01 89
2024  1 1.53752e+00 1.67782e+00 97
2024  2 5.94307e+00 4.27360e+00 112
2024  3 2.95581e+00 2.04017e+00 64
2024  4 nan nan 0