condition	mean	min	max
4 h after light	8.7850015	8.678752	8.891251
8 h after light	8.1327395	7.917693	8.347786
12 h after light	8.388491	7.292084	9.484898
4 h after dark	8.7398275	7.799146	9.680509
8 h after dark	8.514333	8.239892	8.788774
12 h after dark	7.828049	7.828049	7.828049