condition	mean	min	max
4 h after light	8.0	8.0	8.0
8 h after light	9.15	8.3	10.0
12 h after light	6.7	4.5	8.9
4 h after dark	11.75	9.4	14.1
8 h after dark	7.55	7.1	8.0
12 h after dark	29.35	6.2	52.5