condition mean min max 4 h after light 56.8 56.8 56.8 8 h after light 75.4 66.1 84.7 12 h after light 98.55 58.6 138.5 4 h after dark 157.6 89.5 225.7 8 h after dark 112.7 79.6 145.8 12 h after dark 63.2 34.5 91.9