condition mean min max 4 h after light 129.4 129.4 129.4 8 h after light 114.7 82.6 146.8 12 h after light 120.55 75.5 165.6 4 h after dark 172.95 92.7 253.2 8 h after dark 141.9 108.8 175.0 12 h after dark 182.2 154.0 210.4