condition mean min max 3 h after light 0.0063327 0.0 0.0759924 7 h after light 0.0 0.0 0.0 11 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 10 h after dark 0.0 0.0 0.0