condition	mean	min	max
4 h after light	9.0	9.0	9.0
8 h after light	7.15	2.3	12.0
12 h after light	0.95	0.7	1.2
4 h after dark	10.15	1.1	19.2
8 h after dark	13.2	10.6	15.8
12 h after dark	7.449999999999999	1.7	13.2