condition	mean	min	max
4 h after light	7.53763	7.499689999999999	7.58822
8 h after light	7.485246666666667	7.26024	7.6647
12 h after light	7.46274	7.4082	7.507910000000001
4 h after dark	7.513669999999999	7.3799399999999995	7.6258
8 h after dark	7.57773	7.518689999999999	7.6657
12 h after dark	7.410963333333334	7.178710000000001	7.56308