condition mean min max 0 h after light 66.48235 63.5497 69.415 4 h after light 19.0777 16.1549 22.0005 8 h after light 16.4075 14.6116 18.2034 4 h after dark 49.3741 49.0862 49.662 8 h after dark 49.6792 47.7582 51.6002 12 h after dark 52.687200000000004 50.3675 55.0069