condition mean min max 4 h after light 2.6 2.6 2.6 8 h after light 13.15 5.0 21.3 12 h after light 3.2 3.2 3.2 4 h after dark 34.25 13.2 55.3 8 h after dark 18.8 3.9 33.7 12 h after dark 12.950000000000001 8.3 17.6