condition mean min max 4 h after light 13.1 13.1 13.1 8 h after light 12.049999999999999 4.7 19.4 12 h after light 2.3 1.6 3.0 4 h after dark 18.6 14.3 22.9 8 h after dark 8.8 8.5 9.1 12 h after dark 7.0 3.1 10.9