| Table A2-4 Percentage of First-Class Mail Containing Advertising by Household Income (Percentage of Pieces) Postal Fiscal Years 1987, 2006 and 2007 (Recruitment and Diary Data) |
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| Income | First-Class Mail | ||||
| 1987 | 2006 | 2007 | |||
| < $7K | 18.6 | 15.6 | 24.9 | ||
| $7K - $9.9K | 21.1 | 22.6 | 24.7 | ||
| $10K - $14.9K | 25.5 | 21.9 | 21.8 | ||
| $15K - $19.9K | 23.4 | 26.1 | 28.5 | ||
| $20K - $24.9K | 24.3 | 30.0 | 28.8 | ||
| $25K - $29.9K | 25.5 | 29.4 | 27.0 | ||
| $30K - $34.9K | 27.0 | ||||
| $35K - $49.9K | 29.5 | 30.1 | 28.7 | ||
| $50K - $64.9K | 29.4 | 31.0 | 27.4 | ||
| $65K - $79.9K | 29.9 | 32.0 | 29.8 | ||
| $80K - $99.9K | 33.3 | 31.2 | 29.8 | ||
| $100K+ | 31.6 | 32.2 | 30.3 | ||
| Includes advertising only, advertising enclosed, and business invitations/announcements. | |||||