condition	mean	min	max
4 h after light	1.703275	0.0	3.40655
8 h after light	1.848215	0.0	3.69643
12 h after light	1.685405	0.0	3.37081
4 h after dark	2.96755	2.94625	2.98885
8 h after dark	3.678125	2.9269	4.42935
12 h after dark	1.22382	0.0	2.44764