condition	mean	min	max
4 h after light	12.9716895	12.882618	13.060761
8 h after light	13.0803205	11.87107	14.289571
12 h after light	14.715861499999999	13.720212	15.711511
4 h after dark	8.8940845	8.528015	9.260154
8 h after dark	10.976947	9.677459	12.276435
12 h after dark	18.100678	18.100678	18.100678