What percentage of high-school grads are enrolled in two- or four-year college programs?

What percentage of high-school grads  are enrolled in two- or four-year college programs?

Just under 66% of recent high-school grads were enrolled in two- or four-year college programs in 2013, down from 68.6% in 2008, according to research by the American Council on Education, a higher-education industry group.