condition	mean	min	max
4 h after light	2.6	2.6	2.6
8 h after light	2.6	2.0	3.2
12 h after light	8.6	2.2	15.0
4 h after dark	5.9	1.5	10.3
8 h after dark	7.3	3.1	11.5
12 h after dark	23.6	13.8	33.4