Silver Book Fact
Medicare income in 2006 was $437 billion, and expenditures were $408 billion.
Board of Trustees, Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds. 2007 Annual Report of the Boards of Trustees of the Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds; 2007:2. http://www.cms.hhs.gov/ReportsTrustFunds/downloads/tr2007.pdf