condition	mean	min	max
4 h after light	6.934175	6.83706	7.03129
8 h after light	6.43106	5.97714	6.88498
12 h after light	6.073975000000001	6.06737	6.08058
4 h after dark	7.832129999999999	7.23731	8.42695
8 h after dark	6.97168	6.44517	7.49819
12 h after dark	7.5646	7.51187	7.61733