condition mean min max 4 h after light 190.2405015 171.476622 209.004381 8 h after light 203.084407 201.543772 204.625042 12 h after light 167.162101 156.81181 177.512392 4 h after dark 134.8261245 110.232057 159.420192 8 h after dark 85.789739 75.310768 96.26871 12 h after dark 122.345654 122.345654 122.345654