condition mean min max 4 h after light 149.1 149.1 149.1 8 h after light 125.3 93.0 157.6 12 h after light 131.1 80.0 182.2 4 h after dark 181.55 146.7 216.4 8 h after dark 293.45 287.0 299.9 12 h after dark 408.9 288.4 529.4