#5 United States
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#5. United States. Americans are still attending college in high numbers. Whether they can afford it or not belongs on a different list.
Population with tertiary education: 42.5% Average annual growth rate: 1.4% (lowest) Education spending as pct. of GDP: 7.3% (6th highest)
PHOTO: Harvard University's Kirkland House is seen on October 10, 2003 in Cambridge, Massachusetts.