AHTUS Sample Characteristics
| Sample | Sample size | Age Range | Multiple respondents | Multiple days | With whom | Secondary activities |
|---|---|---|---|---|---|---|
| 1930-31 | 75 | 23-59 | No | Yes | No | No |
| 1965-66 | 2,021 | 19+ | No | No | Yes | Yes |
| 1975-76 | 4,584 | 18+ | Yes | Yes | Yes | Yes |
| 1985 | 3,339 | 10+ | Yes | No | Limited | Yes |
| 1992-94 | 9,386 | 0+ | No | No | Yes | No |
| 1994-95 | 1,199 | 18+ | No | No | No | No |
| 1998-2001 | 2,351 | 18+ | No | No | Yes | Yes |
| 2003 | 20,720 | 15+ | No | No | Yes | Limited |
| 2004 | 13,973 | 15+ | No | No | Yes | Limited |
| 2005 | 13,038 | 15+ | No | No | Yes | Limited |
| 2006 | 12,943 | 15+ | No | No | Yes | Limited |
| 2007 | 12,248 | 15+ | No | No | Yes | Limited |
| 2008 | 12,723 | 15+ | No | No | Yes | Limited |
| 2009 | 13,133 | 15+ | No | No | Yes | Limited |
| 2010 | 13,260 | 15+ | No | No | Yes | Limited |
| 2011 | 12,479 | 15+ | No | No | Yes | Limited |
| 2012 | 12,443 | 15+ | No | No | Yes | Limited |
| 2018 | 9,593 | 15+ | No | No | Yes | Limited |
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