condition	mean	min	max
4 h after light	3.6	3.6	3.6
8 h after light	1.95	1.5	2.4
12 h after light	1.9500000000000002	1.7	2.2
4 h after dark	1.6	1.5	1.7
8 h after dark	2.75	2.5	3.0
12 h after dark	2.95	2.2	3.7