condition	mean	min	max
4 h after light	8.0	8.0	8.0
8 h after light	8.65	8.0	9.3
12 h after light	6.3	0.7	11.9
4 h after dark	6.95	0.8	13.1
8 h after dark	12.100000000000001	6.6	17.6
12 h after dark	15.25	1.0	29.5