Health care accounted for 17.1% of the gross domestic product (GDP) ...

for the U.S. in 2013, about 50% more than any other country, according to a recent report.

Source: "US Spends More on Health Care Than Other High-Income Nations But Has Lower Life Expectancy, Worse Health," The Commonwealth Fund, October 8, 2015,

http://www.commonwealthfund.org/publications/press-releases/2015/oct/us-spends-more-on-health-care-than-other-nations