These tables were prepared by the Center for Behavioral Health Statistics and Quality (CBHSQ), Substance Abuse and Mental Health Services Administration (SAMHSA), U.S. Department of Health and Human Services (HHS), and by RTI International, a trade name of Research Triangle Institute, Research Triangle Park, North Carolina. Work by RTI was performed under Contract No. HHSS283201000003C. Contributors and reviewers at RTI listed alphabetically include Jeremy Aldworth, Katherine J. Asman, Stephanie N. Barnett, Ellen Bishop, Michael R. Bradshaw, Lisa A. Carpenter, Pinliang (Patrick) Chen, Chuchun Chien, James R. Chromy, Elizabeth Copello, Devon S. Cribb, Lanting Dai, Christine Davies, Teresa R. Davis, Susan L. Edwards, Barbara J. Felts, Misty S. Foster, Peter A. Frechtel, Julia M. Gable, Gina S. Geercken, Harper Gordek, Rebecca A. Granger, Kristen Gulledge, Wafa Handley, Erica L. Hirsch, David Hunter (Project Director), Phillip S. Kott, Larry A. Kroutil, Jeffrey S. Laufenberg, Philip K. Lee, Dan Liao, Peilan Chen Martin, Andrew S. Moore, Lisa E. Packer, Michael R. Pemberton, Brenda K. Porter, Jeremy D. Porter, Rosanna S. Quiroz, Harley F. Rohloff, Jessica Roycroft, Neeraja S. Sathe, Jennifer H. Schoden, Kathryn Spagnola, Jiantong (Jean) Wang, Lauren K. Warren, Matthew J. Westlake, Cherie J. Winder, and Carol L. Woodell. Contributors at SAMHSA listed alphabetically include Peggy Barker (contractor), Jonaki Bose, Kathryn Downey, Beth Han, Sarra L. Hedden, Arthur Hughes, Joel Kennet, Rachel Lipari, Pradip Muhuri, Grace E. O'Neill, Dicy Painter, and Peter Tice (Project Officer). At RTI, Farrah Bullock Mann and Brenda K. Porter formatted the tables; Melissa H. Hargraves, Laura James, Amber M. Rohloff, Margaret A. Smith, and Richard S. Straw provided editorial assistance; and Teresa F. Bass, Debbie F. Bond, Kimberly H. Cone, Valerie Garner, Daniel Occoquan, Pamela Couch Prevatt, Roxanne Snaauw, Pamela Tuck, and Cheryl L. Velez provided Web conversion and/or document production support.