condition	mean	min	max
4 h after light	18.9	18.9	18.9
8 h after light	10.9	3.1	18.7
12 h after light	7.65	4.9	10.4
4 h after dark	3.8	2.6	5.0
8 h after dark	7.25	2.3	12.2
12 h after dark	16.9	0.4	33.4