condition	mean	min	max
4 h after light	8.248236666666667	8.12969	8.41436
8 h after light	8.159956666666666	8.006089999999999	8.250060000000001
12 h after light	8.269006666666666	8.021139999999999	8.4709
4 h after dark	8.31214	8.14542	8.484580000000001
8 h after dark	8.146859999999998	8.036539999999999	8.2974
12 h after dark	8.374226666666667	8.25548	8.47071