condition mean min max 4 h after light 4.9 4.9 4.9 8 h after light 4.25 2.8 5.7 12 h after light 16.400000000000002 5.2 27.6 4 h after dark 11.85 10.1 13.6 8 h after dark 10.0 9.5 10.5 12 h after dark 4.75 2.5 7.0