condition	mean	min	max
4 h after light	8.13785	7.490209	8.785491
8 h after light	7.6278109999999995	7.490209	7.765413
12 h after light	7.372783999999999	7.242742	7.502826
4 h after dark	7.560347	7.474552	7.646142
8 h after dark	7.490209	7.490209	7.490209
12 h after dark	7.41837	7.41837	7.41837