condition	mean	min	max
4 h after light	3.0	3.0	3.0
8 h after light	14.25	12.4	16.1
12 h after light	1.15	0.8	1.5
4 h after dark	3.5	1.6	5.4
8 h after dark	1.65	1.0	2.3
12 h after dark	7.65	3.5	11.8