condition mean min max 4 h after light 166.1 166.1 166.1 8 h after light 219.75 157.0 282.5 12 h after light 218.55 79.1 358.0 4 h after dark 98.5 50.7 146.3 8 h after dark 92.1 72.0 112.2 12 h after dark 84.05 82.6 85.5