condition	mean	min	max
4 h after light	4.2	4.2	4.2
8 h after light	3.5999999999999996	3.3	3.9
12 h after light	5.05	5.0	5.1
4 h after dark	9.25	2.8	15.7
8 h after dark	8.8	2.0	15.6
12 h after dark	10.65	2.5	18.8