condition mean min max 4 h after light 46.1 46.1 46.1 8 h after light 8.5 6.8 10.2 12 h after light 8.55 6.1 11.0 4 h after dark 12.899999999999999 11.6 14.2 8 h after dark 10.85 9.2 12.5 12 h after dark 17.0 11.4 22.6