condition mean min max 4 h after light 5.5 5.5 5.5 8 h after light 75.65 37.3 114.0 12 h after light 140.75 136.9 144.6 4 h after dark 205.05 125.8 284.3 8 h after dark 195.7 157.1 234.3 12 h after dark 117.80000000000001 42.2 193.4