condition	mean	min	max
4 h after light	20.203899999999997	18.4687	21.9391
8 h after light	11.0388	10.4951	11.5825
12 h after light	8.504000000000001	7.74084	9.26716
4 h after dark	6.18124	5.60912	6.75336
8 h after dark	9.226875	9.08954	9.36421
12 h after dark	12.928149999999999	12.3811	13.4752