condition	mean	min	max
4 h after light	15.4	15.4	15.4
8 h after light	11.4	5.0	17.8
12 h after light	1.9000000000000001	1.6	2.2
4 h after dark	3.1500000000000004	2.6	3.7
8 h after dark	3.35	3.2	3.5
12 h after dark	4.0	3.3	4.7