condition	mean	min	max
4 h after light	7.1	7.1	7.1
8 h after light	1.6	1.4	1.8
12 h after light	2.45	0.7	4.2
4 h after dark	4.25	1.4	7.1
8 h after dark	0.85	0.5	1.2
12 h after dark	0.6	0.5	0.7