condition	mean	min	max
4 h after light	7.264373333333333	7.2138	7.299289999999999
8 h after light	6.70304	6.5784199999999995	6.803910000000001
12 h after light	6.222923333333333	6.10869	6.3415300000000006
4 h after dark	5.46766	5.17756	6.0052900000000005
8 h after dark	5.06303	4.770230000000001	5.44372
12 h after dark	4.770343333333333	4.60009	4.97123