4.5 6.3 4.7 Ohio 9.8 10.9 9.8 14.6 12.6 11.6 7.3 9.9 8.5 9.6 7.3 5.2 7.2 8.2 Wisconsin 9.3 9.8 9.6 4.3 16.7 11.6 7.2 10.6 8.3 9.5 9.1 3.2 13.9 6.1 Plains 11.3 12.3 .