condition	mean	min	max
4 h after light	6.13497	5.70901	6.56093
8 h after light	6.20852	6.19682	6.22022
12 h after light	8.07938	7.62522	8.53354
4 h after dark	11.2281	10.3648	12.3874
8 h after dark	12.422600000000001	10.9809	13.5172
12 h after dark	5.68968	5.17286	6.16278