condition	mean	min	max
4 h after light	7.702389999999999	7.54789	7.89319
8 h after light	7.85435	7.78745	7.95708
12 h after light	7.738453333333333	7.55028	8.05293
4 h after dark	7.475350000000001	7.4393	7.51602
8 h after dark	7.425786666666667	7.39262	7.44798
12 h after dark	7.464146666666667	7.32953	7.69698