Health spending has been growing at historically low levels in recent years. The Office of the Actuary (OACT) in the Centers for Medicare and Medicaid Services reports that national health spending grew by 3.9 percent each year from 2009 to 2011, the lowest rate of growth since the federal government began keeping such statistics in 1960. Estimates from the Center for Sustainable Health Spending at the Altarum Institute suggest that the slowdown largely continued into 2012, with health spending growing by 4.3 percent last year. The Kaiser Family Foundation/Health Research & Educational Trust Employer Health Benefits Survey shows similar moderation, with premiums in employer-sponsored health plans increasing by 4 percent in 2012.