condition	mean	min	max
0 h after light	8.553805	8.06482	9.04279
4 h after light	12.8812	11.8907	13.8717
8 h after light	7.924529999999999	6.55254	9.29652
4 h after dark	8.12332	5.59534	10.6513
8 h after dark	14.456949999999999	13.3352	15.5787
12 h after dark	12.605065	9.23623	15.9739