condition	mean	min	max
4 h after light	5.22241	4.32263	6.12219
8 h after light	6.056925	5.95309	6.16076
12 h after light	6.0456900000000005	5.83154	6.25984
4 h after dark	7.727143333333333	7.39412	8.08433
8 h after dark	7.076683333333333	6.70922	7.3806
12 h after dark	5.319586666666667	4.73237	6.2153