condition	mean	min	max
4 h after light	3.5	3.5	3.5
8 h after light	3.9	2.3	5.5
12 h after light	2.05	1.8	2.3
4 h after dark	5.3	4.6	6.0
8 h after dark	4.55	3.4	5.7
12 h after dark	2.8	2.6	3.0