condition	mean	min	max
4 h after light	5.1	5.1	5.1
8 h after light	9.9	5.8	14.0
12 h after light	4.2	3.6	4.8
4 h after dark	5.0	4.6	5.4
8 h after dark	3.5999999999999996	3.4	3.8
12 h after dark	5.3	5.0	5.6