condition mean min max 4 h after light 0.9 0.9 0.9 8 h after light 33.95 22.7 45.2 12 h after light 2.9 1.3 4.5 4 h after dark 4.9 3.9 5.9 8 h after dark 2.4000000000000004 2.2 2.6 12 h after dark 31.049999999999997 26.7 35.4