condition	mean	min	max
4 h after light	6.21616	5.90764	6.52468
8 h after light	6.279845	6.01791	6.54178
12 h after light	7.95308	7.02114	8.88502
4 h after dark	8.87896	8.6585	9.09942
8 h after dark	7.425875	7.35784	7.49391
12 h after dark	7.9827900000000005	7.93454	8.03104