condition	mean	min	max
4 h after light	0.0	0.0	0.0
8 h after light	0.0	0.0	0.0
12 h after light	0.0	0.0	0.0
4 h after dark	0.040487	0.0	0.080974
8 h after dark	0.04000005	0.0	0.0800001
12 h after dark	0.0	0.0	0.0