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 2.80694e+01 2.35336e+01 42
2002  8 8.81530e+00 6.64402e+00 26
2002  9 1.26069e+01 3.91408e-01 11
2002 10 1.84782e+01 1.02216e+01 135
2002 11 1.48911e+01 4.40768e+00 205
2002 12 1.37403e+01 5.45717e+00 130
2003  1 1.67061e+01 1.31550e+01 323
2003  2 8.50982e+00 2.00320e+00 247
2003  3 1.90859e+01 1.56982e+01 81
2003  4 3.09876e+01 2.09257e+01 179
2003  5 2.52963e+01 1.25272e+01 68
2003  6 nan nan 0
2003  7 nan nan 0
2003  8 2.87242e+01 2.09059e+01 3
2003  9 9.48148e+00 1.66169e+00 12
2003 10 1.35052e+01 4.51253e+00 216
2003 11 1.20839e+01 6.49740e+00 189
2003 12 9.73563e+00 4.84064e+00 283
2004  1 8.84949e+00 2.17325e+00 317
2004  2 7.58015e+00 2.57257e+00 217
2004  3 1.83503e+01 1.44210e+01 76
2004  4 1.28854e+01 5.10425e+00 62
2004  5 5.30307e+00 4.20636e+00 65
2004  6 1.48748e+01 6.33929e+00 149
2004  7 3.47554e+01 1.86528e+01 20
2004  8 1.78385e+01 7.52168e+00 60
2004  9 2.88317e+01 1.80643e+01 36
2004 10 2.25209e+01 1.61274e+01 146
2004 11 1.13942e+01 5.23720e+00 178
2004 12 9.31943e+00 2.43320e+00 169
2005  1 1.08600e+01 4.64653e+00 161
2005  2 1.78838e+01 1.00162e+01 114
2005  3 2.63227e+01 1.38422e+01 185
2005  4 1.37553e+01 5.32344e+00 203
2005  5 1.85426e+01 8.55057e+00 44
2005  6 2.95121e+01 1.41269e+01 35
2005  7 4.54420e+00 5.23594e+00 13
2005  8 2.30981e+01 9.05581e+00 19
2005  9 4.46489e+01 1.91827e+01 35
2005 10 4.90154e+01 2.31711e+01 75
2005 11 2.29600e+01 1.89801e+01 134
2005 12 2.47836e+01 1.35431e+01 284
2006  1 1.14332e+01 3.08323e+00 209
2006  2 8.44851e+00 1.92498e+00 302
2006  3 1.00679e+01 2.27985e+00 356
2006  4 1.17395e+01 2.78851e+00 104
2006  5 2.04846e+01 8.33837e+00 119
2006  6 1.16928e+01 9.81912e+00 43
2006  7 5.66475e+01 3.88546e+01 10
2006  8 2.29625e+01 1.20595e+01 68
2006  9 3.92093e+01 2.20460e+01 51
2006 10 2.42038e+01 2.48444e+01 21
2006 11 3.06405e+01 1.55367e+01 176
2006 12 9.55026e+00 8.13398e-01 37
2007  1 1.10197e+01 2.06868e+00 173
2007  2 1.23038e+01 5.49498e+00 211
2007  3 1.41734e+01 8.03067e+00 235
2007  4 1.30154e+01 1.08386e+01 193
2007  5 1.18163e+01 5.63253e+00 79
2007  6 1.64953e+01 4.72749e-01 8
2007  7 2.31820e+01 6.50904e+00 33
2007  8 1.85536e+01 1.89524e+01 19
2007  9 3.17533e+01 1.79836e+01 68
2007 10 9.11525e+00 1.03145e+01 38
2007 11 2.16842e+01 1.31602e+01 111
2007 12 2.62367e+01 2.02340e+01 264
2008  1 1.15437e+01 3.52348e+00 320
2008  2 7.83591e+00 2.35387e+00 235
2008  3 6.36321e+00 2.44953e+00 188
2008  4 1.36528e+01 8.28191e+00 165
2008  5 1.20518e+01 4.97140e+00 178
2008  6 1.34220e+01 3.38803e+00 74
2008  7 2.05291e+01 1.01652e+01 15
2008  8 2.92636e+01 1.74407e+01 92
2008  9 1.99193e+01 1.71953e+00 29
2008 10 2.34236e+01 1.52104e+01 265
2008 11 9.43136e+00 3.11442e+00 309
2008 12 6.79463e+00 1.55260e+00 324
2009  1 6.80457e+00 1.72174e+00 343
2009  2 6.84388e+00 1.82959e+00 321
2009  3 9.96399e+00 3.44410e+00 285
2009  4 8.64528e+00 2.12443e+00 74
2009  5 1.17757e+01 5.24268e+00 103
2009  6 1.17356e+01 2.33993e+00 37
2009  7 4.54280e+01 1.94459e+01 42
2009  8 3.92071e+01 3.03581e+01 25
2009  9 2.83804e+01 2.72885e+01 34
2009 10 2.41384e+01 7.40106e+00 110
2009 11 2.51462e+01 1.18326e+01 218
2009 12 1.57104e+01 6.62813e+00 60
2010  1 9.46986e+00 2.73854e+00 210
2010  2 6.60477e+00 1.40551e+00 163
2010  3 7.00051e+00 1.59681e+00 446
2010  4 2.24449e+01 8.35489e+00 21
2010  5 8.30466e+00 1.94650e+00 48
2010  6 2.00395e+01 1.06660e+01 23
2010  7 1.82710e+01 7.39951e+00 25
2010  8 2.58127e+01 7.00635e+00 17
2010  9 nan nan 0
2010 10 2.19815e+01 1.28437e+01 411
2010 11 1.50618e+01 8.78025e+00 161
2010 12 1.27684e+01 1.12358e+01 339
2011  1 7.50842e+00 1.83466e+00 232
2011  2 7.59624e+00 1.82268e+00 161
2011  3 1.09661e+01 6.60376e+00 298
2011  4 1.18494e+01 5.13848e+00 108
2011  5 1.47010e+01 8.09069e+00 50
2011  6 1.81629e+01 8.66506e+00 59
2011  7 1.48425e+01 7.19408e-01 10
2011  8 nan nan 0
2011  9 2.71403e+01 1.57552e+01 100
2011 10 1.93012e+01 1.85025e+01 131
2011 11 1.39533e+01 8.86663e+00 262
2011 12 1.24529e+01 5.04823e+00 216
2012  1 7.49332e+00 1.63715e+00 190
2012  2 9.75344e+00 5.62396e+00 120
2012  3 1.00875e+01 4.57094e+00 103
2012  4 2.47462e+01 1.66855e+01 75
2012  5 1.84546e+01 2.14457e+01 51
2012  6 nan nan 0
2012  7 1.30560e+01 0.00000e+00 1
2012  8 1.10982e+01 8.93920e+00 5
2012  9 1.86187e+01 9.31761e+00 73
2012 10 1.90095e+01 5.91565e+00 48
2012 11 1.54519e+01 9.70272e+00 242
2012 12 1.04035e+01 4.45369e+00 173
2013  1 1.10274e+01 3.94599e+00 180
2013  2 1.14155e+01 4.44075e+00 295
2013  3 1.53901e+01 6.69742e+00 301
2013  4 1.41418e+01 8.38139e+00 98
2013  5 2.59900e+01 1.77263e+01 129
2013  6 2.14975e+01 1.12736e+01 97
2013  7 4.62958e+01 2.28039e+01 34
2013  8 3.30282e+01 2.04478e+01 47
2013  9 1.52509e+01 1.88487e+01 12
2013 10 2.18663e+01 8.25984e+00 218
2013 11 2.00425e+01 1.15004e+01 54
2013 12 2.03895e+01 2.06308e+01 290
2014  1 1.06001e+01 2.68060e+00 316
2014  2 9.81417e+00 3.02714e+00 220
2014  3 1.17347e+01 7.11930e+00 256
2014  4 1.58744e+01 7.85813e+00 42
2014  5 3.60358e+01 2.52589e+01 56
2014  6 1.73153e+01 1.26651e+01 24
2014  7 2.20977e+01 1.18015e+01 58
2014  8 3.07296e+01 1.15517e+01 28
2014  9 2.32534e+01 1.13294e+00 11
2014 10 1.65774e+01 1.37975e+01 142
2014 11 2.13251e+01 1.85643e+01 194
2014 12 2.09487e+01 1.40633e+01 175
2015  1 7.28513e+00 1.72054e+00 177
2015  2 1.06654e+01 9.48146e+00 283
2015  3 1.72853e+01 1.07040e+01 176
2015  4 1.77743e+01 5.68747e+00 64
2015  5 2.49992e+01 1.42088e+01 118
2015  6 3.74382e+01 2.09581e+01 43
2015  7 nan nan 0
2015  8 1.78148e+01 6.24441e+00 26
2015  9 nan nan 0
2015 10 2.71178e+01 1.61764e+01 88
2015 11 1.97216e+01 9.98542e+00 116
2015 12 1.45708e+01 9.45068e+00 85
2016  1 1.89912e+01 9.50553e+00 158
2016  2 1.30032e+01 9.91817e+00 247
2016  3 1.27202e+01 4.46975e+00 149
2016  4 1.35827e+01 4.47835e+00 96
2016  5 2.68479e+01 1.10398e+01 9
2016  6 1.58372e+01 1.19609e+01 81
2016  7 1.33419e+01 5.17717e+00 69
2016  8 2.98631e+01 2.07076e+01 107
2016  9 2.26327e+01 1.86190e+01 232
2016 10 1.02055e+01 4.62141e+00 26
2016 11 2.29634e+01 1.41977e+01 160
2016 12 2.26729e+01 1.03576e+01 185
2017  1 1.34292e+01 7.56138e+00 250
2017  2 1.45178e+01 6.75932e+00 354
2017  3 1.41994e+01 6.96511e+00 276
2017  4 1.53872e+01 8.75456e+00 175
2017  5 1.20177e+01 5.32724e+00 76
2017  6 4.46575e+01 2.76987e+01 15
2017  7 9.60680e+00 9.52100e-02 10
2017  8 2.66157e+01 2.19090e+01 61
2017  9 1.95705e+01 9.95352e+00 38
2017 10 2.56281e+01 8.27206e+00 37
2017 11 1.98405e+01 1.32447e+01 173
2017 12 1.24560e+01 6.58425e+00 153
2018  1 1.04287e+01 3.68948e+00 92
2018  2 9.32121e+00 2.85655e+00 199
2018  3 1.02851e+01 3.96949e+00 415
2018  4 1.79670e+01 1.23080e+01 92
2018  5 1.63011e+01 8.13020e+00 4
2018  6 2.00012e+01 1.29564e+01 55
2018  7 1.67985e+01 1.32157e+01 76
2018  8 1.33945e+01 5.97407e+00 24
2018  9 3.50185e+01 2.47492e+01 36
2018 10 7.28376e+00 4.58848e+00 62
2018 11 5.73233e+01 9.94783e+00 5
2018 12 2.17676e+01 1.60086e+01 184
2019  1 1.18856e+01 8.44310e+00 240
2019  2 1.50442e+01 5.96541e+00 195
2019  3 1.67944e+01 9.54231e+00 259
2019  4 1.82526e+01 1.14911e+01 105
2019  5 2.44462e+01 1.94295e+01 122
2019  6 3.06903e+01 2.58503e+01 23
2019  7 2.29211e+01 1.51203e+01 42
2019  8 2.85204e+01 2.39141e+01 13
2019  9 2.76844e+01 2.09908e+01 72
2019 10 1.03306e+01 2.69162e+00 70
2019 11 1.22353e+01 7.69885e+00 172
2019 12 5.94079e+00 8.40743e-01 43
2020  1 1.00143e+01 4.52551e+00 252
2020  2 9.21455e+00 3.16403e+00 196
2020  3 7.78771e+00 1.89576e+00 67
2020  4 1.89285e+01 9.33584e+00 113
2020  5 2.05034e+01 1.66439e+01 107
2020  6 2.86344e+01 1.91464e+01 68
2020  7 nan nan 0
2020  8 1.75289e+01 1.17434e+01 51
2020  9 1.41762e+01 7.23534e+00 80
2020 10 1.05189e+01 4.14592e+00 129
2020 11 2.77465e+01 1.78197e+01 142
2020 12 1.90135e+01 8.68973e+00 211
2021  1 1.24946e+01 3.06422e+00 234
2021  2 9.68723e+00 3.38769e+00 257
2021  3 1.08300e+01 3.45118e+00 115
2021  4 1.78782e+01 1.71081e+01 143
2021  5 1.23655e+01 4.87125e+00 130
2021  6 7.62978e+00 1.70596e+00 58
2021  7 nan nan 0
2021  8 1.05051e+01 0.00000e+00 1
2021  9 4.85314e+01 2.65081e+01 71
2021 10 4.03563e+01 2.42515e+01 117
2021 11 3.21137e+01 2.21119e+01 360
2021 12 1.87638e+01 7.96346e+00 262
2022  1 1.16082e+01 5.07708e+00 328
2022  2 1.19543e+01 5.70900e+00 277
2022  3 1.36208e+01 1.09866e+01 229
2022  4 nan nan 0
2022  5 2.50904e+01 2.21545e+01 121
2022  6 9.81106e+00 6.42114e-01 10
2022  7 1.13843e+01 4.42981e+00 64
2022  8 1.07647e+01 4.78598e+00 27
2022  9 2.47723e+01 1.83247e+01 112
2022 10 1.75393e+01 1.10110e+01 213
2022 11 2.64805e+01 1.44875e+01 52
2022 12 2.88730e+01 1.14553e+01 214
2023  1 1.63750e+01 7.43149e+00 565
2023  2 1.09421e+01 5.72954e+00 551
2023  3 1.81774e+01 1.36393e+01 323
2023  4 9.03050e+00 9.27628e+00 155
2023  5 2.26321e+01 1.83122e+01 204
2023  6 2.81941e+01 1.60748e+01 80
2023  7 1.85893e+01 2.45676e+01 121
2023  8 2.82789e+01 1.72753e+01 75
2023  9 2.48976e+01 1.83625e+01 177
2023 10 1.92607e+01 1.39510e+01 85
2023 11 1.48804e+01 8.12331e+00 356
2023 12 1.27309e+01 3.42924e+00 167
2024  1 1.05695e+01 2.23105e+00 114
2024  2 1.05485e+01 4.73409e+00 419
2024  3 1.20282e+01 1.16265e+01 265
2024  4 5.66109e+00 3.02297e-01 31