condition	mean	min	max
4 h after light	8.790095	8.27217	9.30802
8 h after light	8.040815	7.73808	8.34355
12 h after light	10.501345	9.18939	11.8133
4 h after dark	15.106850000000001	14.9456	15.2681
8 h after dark	13.1746	12.9622	13.387
12 h after dark	12.010200000000001	11.6042	12.4162