Silver Book Fact
In 2003, national health expenditures were 15.3% of the GDP, compared to 5.1% in 1960.
Centers for Disease Control and Prevention, National Center for Health Statistics. Health, United States, 2005: With chartbook on trends in the health of Americans. Atlanta, GA: Centers for Disease Control and Prevention; 2005. http://www.cdc.gov/nchs/data/hus/hus05.pdf