condition mean min max 4 h after light 2.7 2.7 2.7 8 h after light 3.6500000000000004 2.1 5.2 12 h after light 4.35 1.7 7.0 4 h after dark 5.3 3.9 6.7 8 h after dark 4.6 3.1 6.1 12 h after dark 6.8 2.6 11.0