condition	mean	min	max
4 h after light	3.9	3.9	3.9
8 h after light	6.8	4.1	9.5
12 h after light	4.449999999999999	4.3	4.6
4 h after dark	6.0	5.9	6.1
8 h after dark	12.15	3.8	20.5
12 h after dark	14.649999999999999	6.9	22.4