Table A4-8 Treatment of Advertising Mail (Percentage of Households) Postal Fiscal Years 1987, 2006 and 2007 (Recruitment Data)
Treatment	1987	2006	2007
Usually read	19.6	14.8	16.4
Usually scan	40.4	34.6	32.6
Read some	29.6	31.3	31.5
Usually don't read	9.1	16.6	19.2
Don't know/No answer	0.2	2.8	0.2
Received no advertising	1.1	N/A	N/A
Total	100.0	100.0	100.0
Note: Totals may not sum to 100 due to rounding.