condition	mean	min	max
4 h after light	0.6	0.6	0.6
8 h after light	3.0	1.3	4.7
12 h after light	5.3	2.9	7.7
4 h after dark	0.9	0.7	1.1
8 h after dark	5.8	1.9	9.7
12 h after dark	7.0	1.5	12.5