condition	mean	min	max
4 h after light	9.200566666666667	8.81369	9.39462
8 h after light	9.366106666666667	8.90238	9.61027
12 h after light	9.592179999999999	9.20433	9.81857
4 h after dark	9.548653333333332	9.17981	9.791939999999999
8 h after dark	9.45802	8.962060000000001	9.802589999999999
12 h after dark	9.32728	8.85816	9.632810000000001