condition	mean	min	max
4 h after light	8.382896666666667	8.16806	8.5013
8 h after light	8.269126666666667	8.13448	8.37545
12 h after light	8.63047	8.42762	8.77111
4 h after dark	8.576806666666666	8.19152	8.839080000000001
8 h after dark	8.61972	8.35515	8.92221
12 h after dark	8.661109999999999	8.31702	8.88677