condition	mean	min	max
4 h after light	1.0	1.0	1.0
8 h after light	14.4	1.8	27.0
12 h after light	1.1	1.0	1.2
4 h after dark	4.55	3.3	5.8
8 h after dark	1.85	1.3	2.4
12 h after dark	6.7	2.4	11.0