condition	mean	min	max
4 h after light	2.7	2.7	2.7
8 h after light	4.45	3.9	5.0
12 h after light	6.65	5.6	7.7
4 h after dark	41.5	29.5	53.5
8 h after dark	9.1	5.2	13.0
12 h after dark	2.45	1.6	3.3