condition	mean	min	max
4 h after light	1.103215	0.0	2.20643
8 h after light	0.0	0.0	0.0
12 h after light	0.0	0.0	0.0
4 h after dark	0.975495	0.0	1.95099
8 h after dark	2.392437	0.963764	3.82111
12 h after dark	0.798855	0.0	1.59771