condition	mean	min	max
4 h after light	4.362353333333333	4.2472	4.54204
8 h after light	4.340199999999999	4.20815	4.504
12 h after light	4.23694	4.11104	4.37183
4 h after dark	4.30795	4.26466	4.37499
8 h after dark	4.2084	4.06797	4.359780000000001
12 h after dark	4.202676666666666	4.10712	4.2696