condition	mean	min	max
4 h after light	2.187695	0.0	4.37539
8 h after light	1.77247	0.0	3.54494
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	0.0	0.0	0.0