condition	mean	min	max
4 h after light	8.16815	8.0221	8.32493
8 h after light	8.338429999999999	8.25698	8.480189999999999
12 h after light	8.507823333333333	8.29637	8.756210000000001
4 h after dark	8.296796666666667	7.982410000000001	8.5112
8 h after dark	8.17701	7.92208	8.32077
12 h after dark	8.31925	8.15892	8.43219