condition mean min max 4 h after light 66.7 66.7 66.7 8 h after light 51.599999999999994 42.4 60.8 12 h after light 47.0 31.5 62.5 4 h after dark 43.85 7.0 80.7 8 h after dark 61.449999999999996 49.3 73.6 12 h after dark 92.5 85.7 99.3