condition mean min max 4 h after light 48.5 48.5 48.5 8 h after light 25.3 13.4 37.2 12 h after light 15.5 9.6 21.4 4 h after dark 22.2 13.2 31.2 8 h after dark 43.3 28.5 58.1 12 h after dark 4.9 2.5 7.3