condition	mean	min	max
4 h after light	6.587226666666667	6.45536	6.75582
8 h after light	6.608466666666667	6.39531	6.7591
12 h after light	6.61869	6.35951	6.7739
4 h after dark	6.33796	6.26788	6.4354
8 h after dark	6.265833333333333	6.10829	6.42844
12 h after dark	6.17014	6.0753900000000005	6.2336