condition	mean	min	max
4 h after light	1.2	1.2	1.2
8 h after light	13.0	2.4	23.6
12 h after light	15.7	4.0	27.4
4 h after dark	4.7	1.4	8.0
8 h after dark	11.95	4.6	19.3
12 h after dark	3.15	2.9	3.4