condition mean min max 4 h after light 5.4 5.4 5.4 8 h after light 16.05 3.3 28.8 12 h after light 11.6 7.6 15.6 4 h after dark 24.9 13.4 36.4 8 h after dark 21.549999999999997 20.9 22.2 12 h after dark 12.85 12.5 13.2