condition	mean	min	max
4 h after light	1.3	1.3	1.3
8 h after light	2.5	1.9	3.1
12 h after light	1.5	1.5	1.5
4 h after dark	11.4	3.3	19.5
8 h after dark	11.049999999999999	3.9	18.2
12 h after dark	4.6	4.5	4.7