condition	mean	min	max
4 h after light	7.146865	6.56454	7.72919
8 h after light	7.72748	7.1381	8.31686
12 h after light	8.189765000000001	7.64569	8.73384
4 h after dark	10.31371	9.85362	10.7738
8 h after dark	8.282385	8.22139	8.34338
12 h after dark	8.898810000000001	8.8819	8.91572