condition	mean	min	max
4 h after light	2.3	2.3	2.3
8 h after light	2.05	2.0	2.1
12 h after light	3.7	2.9	4.5
4 h after dark	2.1	2.1	2.1
8 h after dark	1.75	1.7	1.8
12 h after dark	2.4000000000000004	1.6	3.2