condition mean min max 4 h after light 159.4 159.4 159.4 8 h after light 140.15 105.0 175.3 12 h after light 189.5 125.8 253.2 4 h after dark 108.44999999999999 96.6 120.3 8 h after dark 89.89999999999999 26.7 153.1 12 h after dark 89.75 86.8 92.7