| Variable | Year | Supplement |
|---|---|---|
| TBSPRD4 | 2010 | Sample adult questionnaire |
| TBSPRD4 | 2009 | Sample adult questionnaire |
| TBSPRD4 | 2008 | Sample adult questionnaire |
| TBSPRD4 | 2007 | Sample adult questionnaire |
| TBSPRD4 | 2006 | Sample adult questionnaire |
| TBSPRD4 | 2005 | Sample adult questionnaire |
| TBSPRD4 | 2004 | Sample adult questionnaire |
| TBSPRD4 | 2003 | Sample adult questionnaire |
| TBSPRD4 | 2002 | Sample adult questionnaire |
| TBSPRD4 | 2001 | Sample adult questionnaire |
| TBSPRD4 | 2000 | Sample adult questionnaire |