condition	mean	min	max
4 h after light	1.1	1.1	1.1
8 h after light	4.45	1.7	7.2
12 h after light	0.8	0.7	0.9
4 h after dark	1.6	0.7	2.5
8 h after dark	7.3	1.2	13.4
12 h after dark	1.75	1.6	1.9