condition	mean	min	max
4 h after light	5.0	5.0	5.0
8 h after light	3.55	3.2	3.9
12 h after light	34.35	27.2	41.5
4 h after dark	24.1	2.5	45.7
8 h after dark	9.4	5.8	13.0
12 h after dark	8.25	4.7	11.8