The health share of the GDP is projected to increase from 17.6% to 19.8% between 2009 and 2020.
Keehan, Sean P., Andrea M. Sisko, Christopher J. Truffer, John A. Poisal, Gigi A. Cuckler, Andrew J. Madison, Joseph M. Lizonitz, and Sheila D. Smith. National Health Spending Projections Through 2020: Economic Recvoery and Reform Drive Faster Spending Growth. Health Affairs. July 2011; doi: 10.1377/hlthaff.2011.0662. http://content.healthaffairs.org/content/early/2011/07/27/hlthaff.2011.0662.abstract