condition	mean	min	max
4 h after light	1.6	1.6	1.6
8 h after light	14.65	2.0	27.3
12 h after light	2.25	1.9	2.6
4 h after dark	5.75	1.9	9.6
8 h after dark	10.7	4.1	17.3
12 h after dark	15.35	3.7	27.0