condition	mean	min	max
4 h after light	7.2956900000000005	6.58408	8.0073
8 h after light	6.193020000000001	6.16579	6.22025
12 h after light	6.87626	6.52447	7.22805
4 h after dark	7.589533333333333	4.78247	9.08612
8 h after dark	7.995016666666666	7.63916	8.43414
12 h after dark	8.5933	8.09581	9.1914