condition	mean	min	max
4 h after light	9.466445	9.1592	9.77369
8 h after light	7.782655	6.84931	8.716
12 h after light	13.26075	12.2233	14.2982
4 h after dark	12.32165	11.5528	13.0905
8 h after dark	14.43685	13.1503	15.7234
12 h after dark	13.0251	12.8587	13.1915