condition	mean	min	max
4 h after light	2.4	2.4	2.4
8 h after light	6.4	6.2	6.6
12 h after light	3.7	3.6	3.8
4 h after dark	10.9	5.2	16.6
8 h after dark	4.85	3.7	6.0
12 h after dark	3.5	2.9	4.1