condition	mean	min	max
4 h after light	6.232643333333333	5.94877	6.41392
8 h after light	5.831589999999999	5.55093	6.04217
12 h after light	6.539893333333334	6.149030000000001	6.82383
4 h after dark	6.06068	5.79601	6.26734
8 h after dark	6.82973	6.477130000000001	7.15917
12 h after dark	7.293026666666667	7.1456800000000005	7.51439