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	2.96755	2.94625	2.98885
8 h after dark	4.403345	2.9529	5.85379
12 h after dark	0.0	0.0	0.0