condition mean min max 4 h after light 5.7 5.7 5.7 8 h after light 18.650000000000002 2.1 35.2 12 h after light 13.85 7.3 20.4 4 h after dark 16.3 7.0 25.6 8 h after dark 6.4 2.5 10.3 12 h after dark 8.4 7.9 8.9