condition mean min max 4 h after light 3.4 3.4 3.4 8 h after light 3.3499999999999996 2.1 4.6 12 h after light 3.0 2.9 3.1 4 h after dark 5.35 2.5 8.2 8 h after dark 4.05 3.9 4.2 12 h after dark 4.199999999999999 3.3 5.1