condition mean min max 4 h after light 2.8 2.8 2.8 8 h after light 2.95 1.5 4.4 12 h after light 2.6999999999999997 1.3 4.1 4 h after dark 3.75 1.5 6.0 8 h after dark 14.9 3.1 26.7 12 h after dark 1.55 0.9 2.2