condition	mean	min	max
4 h after light	6.5	6.5	6.5
8 h after light	2.7	1.0	4.4
12 h after light	20.15	10.9	29.4
4 h after dark	4.75	4.2	5.3
8 h after dark	9.9	4.5	15.3
12 h after dark	33.95	20.9	47.0