condition	mean	min	max
4 h after light	3.6	3.6	3.6
8 h after light	5.2	3.2	7.2
12 h after light	3.25	2.3	4.2
4 h after dark	10.1	9.1	11.1
8 h after dark	4.9	3.0	6.8
12 h after dark	6.25	4.8	7.7