### Acknowledgments

These tables were prepared by the Division of Population Surveys, Office of Applied Studies (OAS), Substance Abuse and Mental Health Services Administration (SAMHSA), and by RTI International, a trade name of Research Triangle Institute, Research Triangle Park, North Carolina. Work by RTI was performed under Contract No. 283-2004-00022. Contributors and reviewers at RTI listed alphabetically include Jeremy Aldworth, Kimberly Ault, Kortnee Barnett-Walker, Ellen Bishop, Tara Boyette, Walter Boyle, Michael Bradshaw, Lisa Carpenter, Patrick Chen, Chuchun Chien, James R. Chromy, Andrew Clarke, Elizabeth Copello, Lanting Dai, Teresa R. Davis, Steven L. Emrich, Barbara Felts, Misty Foster, Peter Frechtel, Julia Gable, Gina Geercken, Harper Gordek, Wafa Handley, David C. Heller, Erica Hirsch, Susan Hunter, Larry A. Kroutil, Jeff Laufenberg, Amanda Lewis-Evans, Amy Licata, Bing Liu, Mary Ellen Marsden, Peilan Martin, Breda Munoz, Lisa E. Packer, Lanny Piper, Jeremy Porter, Tania Robbins, Jill Ruppenkamp, Neeraja Sathe, Jennifer Schoden, Kathryn Spagnola, Priya Suresh, Paul Tillman, Thomas G. Virag (Project Director), Michael Vorburger, Jiantong Wang, Barry Weaver, Matthew Westlake, and Carol Woodell. Contributors at SAMHSA listed alphabetically include Peggy Barker, Jim Colliver, Joan Epstein, Joseph Gfroerer, Joe Gustin, Arthur Hughes, Joel Kennet, Sharon Larson, Pradip Muhuri, Dicy Painter, and Doug Wright. At RTI, Farrah Bullock, Brenda K. Porter, and Tracy Woodall formatted the tables; Richard Hair, Carol Offen, Richard S. Straw, and Laura White provided editorial assistance; and David Belton, Wendy Broome, Kimberly Cone, Teresa F. Gurley, Richard Hair, and Pamela C. Prevatt provided Web conversion support. Final report production was provided by Beatrice Rouse, Coleen Sanderson, and Jane Feldmann at SAMHSA.

### Electronic Access to Publication

This publication can be accessed electronically through the Internet connections listed below:

http://www.samhsa.gov
http://www.oas.samhsa.gov

### Originating Office

SAMHSA, Office of Applied Studies
1 Choke Cherry Road, Room 7-1044
Rockville, MD 20857

September 2006

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