condition	mean	min	max
4 h after light	2.0	2.0	2.0
8 h after light	5.5	3.5	7.5
12 h after light	3.65	2.7	4.6
4 h after dark	4.0	3.4	4.6
8 h after dark	4.45	4.4	4.5
12 h after dark	3.4000000000000004	3.2	3.6