condition mean min max 4 h after light 154.1 154.1 154.1 8 h after light 126.1 85.1 167.1 12 h after light 114.85 104.5 125.2 4 h after dark 95.4 88.2 102.6 8 h after dark 124.80000000000001 122.7 126.9 12 h after dark 156.65 155.4 157.9