| Table A8-16 Purchases Resulting from Ad Mail In Previous Month Percent of Households Years 2000 - 2007 (Recruitment Data) |
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| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| None | 76% | 79% | 75% | 74% | 75% | 77% | 75% | 78% |
| 1 | 11% | 9% | 11% | 12% | 12% | 11% | 11% | 12% |
| 2 | 6% | 5% | 6% | 6% | 6% | 6% | 7% | 5% |
| 3-5 | 5% | 4% | 5% | 5% | 4% | 4% | 5% | 4% |
| 6 or More | 1% | 1% | 2% | 2% | 2% | 1% | 2% | 1% |