condition	mean	min	max
4 h after light	7.771606666666667	7.6127	8.08806
8 h after light	7.60168	7.27717	7.8719
12 h after light	7.507386666666667	7.2727	7.87413
4 h after dark	7.531456666666667	7.19119	7.943860000000001
8 h after dark	7.63319	7.35375	8.08859
12 h after dark	7.77312	7.3090399999999995	8.01972