condition	mean	min	max
4 h after light	1.7	1.7	1.7
8 h after light	12.35	1.5	23.2
12 h after light	5.6	5.3	5.9
4 h after dark	3.55	3.0	4.1
8 h after dark	15.1	10.3	19.9
12 h after dark	9.25	4.5	14.0