condition	mean	min	max
4 h after light	1.0	1.0	1.0
8 h after light	5.75	3.4	8.1
12 h after light	2.8	1.3	4.3
4 h after dark	12.55	1.1	24.0
8 h after dark	1.7	1.5	1.9
12 h after dark	1.1	1.1	1.1