condition	mean	min	max
4 h after light	7.29657	6.33625	8.25689
8 h after light	4.89978	4.86649	4.93307
12 h after light	7.084205000000001	5.14585	9.02256
4 h after dark	20.8668	15.5834	26.1502
8 h after dark	11.393550000000001	11.356	11.4311
12 h after dark	10.209620000000001	9.42894	10.9903