Silver Book Fact
Private health expenditures is expected to grow to 6.3% in 2007–increasing from 5.4% in 2006.
Centers for Medicare and Medicaid Services. National Health Expenditure Projections 2007-2017. U.S. Department of Health and Human Services; 2008. http://www.cms.hhs.gov/NationalHealthExpendData/Downloads/proj2007.pdf