condition	mean	min	max
4 h after light	1.6	1.6	1.6
8 h after light	2.0	1.8	2.2
12 h after light	2.8	2.1	3.5
4 h after dark	14.2	2.5	25.9
8 h after dark	3.2	2.4	4.0
12 h after dark	3.5	2.6	4.4