condition	mean	min	max
4 h after light	7.808763333333333	7.76013	7.904319999999999
8 h after light	7.9167733333333326	7.6945	8.114419999999999
12 h after light	7.66404	7.567189999999999	7.71685
4 h after dark	7.843216666666666	7.62259	8.003739999999999
8 h after dark	7.865803333333333	7.76018	8.05317
12 h after dark	7.739380000000001	7.576230000000001	7.90831