condition	mean	min	max
4 h after light	7.71579	7.660189999999999	7.774210000000001
8 h after light	7.843686666666667	7.7703	7.9135800000000005
12 h after light	7.850396666666667	7.71502	8.00993
4 h after dark	7.87249	7.56153	8.195039999999999
8 h after dark	7.993543333333332	7.836189999999999	8.195269999999999
12 h after dark	7.8942	7.862939999999999	7.95035