condition	mean	min	max
4 h after light	7.58686	6.60541	8.56831
8 h after light	6.662905	6.63057	6.69524
12 h after light	7.794695000000001	7.6896	7.89979
4 h after dark	8.685686666666667	8.32506	8.86659
8 h after dark	9.557963333333333	9.31913	9.78502
12 h after dark	8.27404	7.60637	8.78523