condition	mean	min	max
4 h after light	6.279045	5.46334	7.09475
8 h after light	5.40399	5.1536	5.65438
12 h after light	6.305485	6.023	6.58797
4 h after dark	9.95571	9.88625	10.0258
8 h after dark	9.636429999999999	9.39462	10.0316
12 h after dark	7.971193333333333	6.91747	8.50995