condition mean min max 0 h after light 0.1093885 0.0 0.218777 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.3223 0.0 0.6446 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0