condition	mean	min	max
4 h after light	1.1	1.1	1.1
8 h after light	2.25	2.0	2.5
12 h after light	7.25	1.3	13.2
4 h after dark	4.5	3.7	5.3
8 h after dark	9.95	4.3	15.6
12 h after dark	3.9	3.7	4.1