condition	mean	min	max
4 h after light	3.5	3.5	3.5
8 h after light	5.4	4.0	6.8
12 h after light	2.2	1.7	2.7
4 h after dark	3.9000000000000004	3.4	4.4
8 h after dark	2.2	1.5	2.9
12 h after dark	20.75	4.4	37.1