condition	mean	min	max
4 h after light	14.9	14.9	14.9
8 h after light	19.1	4.5	33.7
12 h after light	37.75	11.7	63.8
4 h after dark	5.35	5.0	5.7
8 h after dark	4.0	2.0	6.0
12 h after dark	4.95	4.7	5.2