condition	mean	min	max
4 h after light	2.698635	0.0	5.39727
8 h after light	0.0	0.0	0.0
12 h after light	1.33516	0.0	2.67032
4 h after dark	0.0	0.0	0.0
8 h after dark	0.0	0.0	0.0
12 h after dark	0.0	0.0	0.0