condition	mean	min	max
4 h after light	8.534816666666666	8.38722	8.652389999999999
8 h after light	8.832386666666666	8.76885	8.92135
12 h after light	9.038443333333333	8.82639	9.17431
4 h after dark	8.71867	8.61503	8.80589
8 h after dark	8.717456666666667	8.62085	8.76605
12 h after dark	8.312249999999999	8.091619999999999	8.47519