condition	mean	min	max
4 h after light	1.7	1.7	1.7
8 h after light	11.55	10.0	13.1
12 h after light	5.9	5.8	6.0
4 h after dark	7.25	7.0	7.5
8 h after dark	7.15	6.3	8.0
12 h after dark	8.6	7.6	9.6