condition	mean	min	max
4 h after light	2.4	2.4	2.4
8 h after light	1.3	1.1	1.5
12 h after light	9.35	1.4	17.3
4 h after dark	3.7	1.6	5.8
8 h after dark	17.0	1.4	32.6
12 h after dark	2.0	0.8	3.2