condition mean min max 4 h after light 66.2 66.2 66.2 8 h after light 12.3 11.0 13.6 12 h after light 43.15 10.3 76.0 4 h after dark 24.95 6.8 43.1 8 h after dark 39.45 23.0 55.9 12 h after dark 55.85 34.0 77.7