condition	mean	min	max
4 h after light	1.7	1.7	1.7
8 h after light	2.4	1.7	3.1
12 h after light	3.75	1.8	5.7
4 h after dark	5.25	1.6	8.9
8 h after dark	2.5	1.6	3.4
12 h after dark	2.95	2.5	3.4