condition mean min max 4 h after light 1.4 1.4 1.4 8 h after light 11.799999999999999 2.7 20.9 12 h after light 15.5 5.1 25.9 4 h after dark 15.049999999999999 2.4 27.7 8 h after dark 29.5 8.1 50.9 12 h after dark 5.85 4.7 7.0