condition	mean	min	max
4 h after light	0.4	0.4	0.4
8 h after light	0.55	0.5	0.6
12 h after light	3.2	1.6	4.8
4 h after dark	5.55	1.5	9.6
8 h after dark	22.0	21.1	22.9
12 h after dark	3.35	2.0	4.7