Data were derived from the 2005 and 2010 National Alcohol Surveys (NAS). The 2005 and 2010 NAS are national, household, Computer Assisted Telephone Interview (CATI) surveys of adults aged 18+ in all 50 U.S. states and Washington, DC. Respondents were sampled via a random digit dialing (RDD) approach using a list-assisted number generation protocol. Black and Latino over-samples were obtained by targeting telephone exchanges in higher density areas, with the exception of the 2005 Latino oversample, drawn using Latino surnames. Interviews were conducted in both English and Spanish.