Silver Book Fact
The health care portion of the GDP was 16%, which was slightly higher than the 15.9% in 2004.
Catlin A, Cowan C, Heffler S, Washington B, et al. National Health Spending In 2005: The slowdown continues. Health Affairs. 2007; 26(1): 142-153. https://www.healthaffairs.org/doi/full/10.1377/hlthaff.26.1.142