condition mean min max 4 h after light 3.5290749999999997 2.8101 4.24805 8 h after light 4.493715 4.07913 4.9083 12 h after light 13.594999999999999 13.0616 14.1284 4 h after dark 17.2414 15.8404 18.6424 8 h after dark 11.16375 10.2287 12.0988 12 h after dark 8.686824999999999 8.67977 8.69388