condition	mean	min	max
4 h after light	0.1904771	0.0957952	0.285159
8 h after light	0.207894	0.0	0.415788
12 h after light	0.3307875	0.284371	0.377204
4 h after dark	0.1669005	0.165703	0.168098
8 h after dark	0.0622785	0.0	0.124557
12 h after dark	0.081751	0.0	0.163502