condition mean min max 4 h after light 3.1 3.1 3.1 8 h after light 17.650000000000002 5.2 30.1 12 h after light 19.85 14.7 25.0 4 h after dark 3.95 1.9 6.0 8 h after dark 12.45 2.4 22.5 12 h after dark 17.2 12.4 22.0