condition	mean	min	max
4 h after light	0.7	0.7	0.7
8 h after light	2.1	1.6	2.6
12 h after light	3.7	2.5	4.9
4 h after dark	6.95	1.8	12.1
8 h after dark	2.6	0.9	4.3
12 h after dark	1.7	0.9	2.5