Table A4-10 Treatment of Advertising Mail by Education of Head of Household  (Percentage of Households) Postal Fiscal Years 1987, 2006 and 2007 (Recruitment Data)
Treatment	< 8th Grade �			Some High School			High School			Some College
	1987	2006	2007	1987	2006	2007	1987	2006	2007	1987	2006	2007
Usually read	29.2	27.8	27.0	24.6	22.0	27.2	23.5	18.1	18.8	17.6	12.8	15.8
Usually scan	37.0	29.8	26.2	33.0	27.6	29.3	42.4	34.6	33.7	39.9	38.0	33.0
Read some	22.0	24.8	25.4	27.8	32.2	26.0	26.2	28.1	30.0	30.8	30.6	33.7
Usually don't read	9.0	13.1	20.8	11.8	11.9	17.2	7.0	15.9	17.3	10.8	16.6	17.5
Don't know/No answer	0.7	4.4	0.6	0.0	6.4	0.3	0.1	3.3	0.2	0.3	1.9	0.1
Received no advertising	2.1	N/A	N/A	2.8	N/A	N/A	0.8	N/A	N/A	0.6	N/A	N/A
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Treatment	Tech School			College			Post Graduate
	1987	2006	2007	1987	2006	2007	1987	2006	2007
Usually read	18.5	10.7	13.8	12.2	9.4	10.2	8.9	5.3	6.0
Usually scan	39.9	41.2	32.0	43.5	35.1	33.8	41.9	32.9	34.2
Read some	31.6	30.8	33.6	34.6	35.7	34.2	28.3	38.5	34.8
Usually don't read	8.9	14.8	19.9	9.1	18.5	21.7	10.5	22.4	24.9
Don't know/No answer	0.1	2.4	0.6	0.3	1.3	0.1	0.0	0.9	0.1
Received no advertising	1.0	N/A	N/A	0.3	N/A	N/A	10.4	N/A	N/A
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
� Fluctuations may be due to small sample sizes.
Note: Totals may not sum to 100 due to rounding.