condition mean min max 4 h after light 166.2 166.2 166.2 8 h after light 190.2 139.2 241.2 12 h after light 102.9 48.0 157.8 4 h after dark 98.05 72.0 124.1 8 h after dark 78.60000000000001 17.9 139.3 12 h after dark 70.9 8.0 133.8