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	2.558605	0.0	5.11721
8 h after dark	1.284445	0.0	2.56889
12 h after dark	0.0	0.0	0.0