condition	mean	min	max
4 h after light	0.0111017	0.0	0.0222034
8 h after light	0.0	0.0	0.0
12 h after light	0.0	0.0	0.0
4 h after dark	0.0	0.0	0.0
8 h after dark	0.0	0.0	0.0
12 h after dark	0.0095476	0.0	0.0190952