In 2006, the George W. Bush administration expanded abstinence programs from teens to adults, by introducing programs to encourage unmarried adults to remain abstinent until marriage. Family-planning advocates and researchers denounced the program as unrealistic, due to the rising age of first-time marriage in the United States. In 2009, the Barack Obama administration removed most of the funding from sexual-abstinence education, and instead used the money to fund the Office of Adolescent Health, designed to prevent teenage pregnancy through evidence-based programs. During the Obama administration, between the years 2007 and 2017, the teen pregnancy rate in the US dropped by 50%, according to the Centers for Disease Control and Prevention.