condition	mean	min	max
4 h after light	6.571465	5.73026	7.41267
8 h after light	5.59173	5.25097	5.93249
12 h after light	7.6172450000000005	7.57812	7.65637
4 h after dark	8.81628	8.55752	9.07817
8 h after dark	7.506893333333333	7.47056	7.56998
12 h after dark	7.38406	6.73038	7.78737