Table A3-22 Standard Mail Usefulness by Treatment (Percentage of Pieces) Postal Fiscal Years 1987, 2006 and 2007 (Diary Data)
Treatment	Usefulness
	Useful			Interesting			Not Interesting			Objectionable
	1987	2006	2007	1987	2006	2007	1987	2006	2007	1987	2006	2007
Read	70.2	76.5	76.5	38.0	51.1	47.9	13.6	14.3	14.8	20.0	22.3	26.2
Looked at	15.9	9.0	8.7	43.8	27.4	29.4	39.0	26.3	25.4	30.1	21.3	16.5
Discarded	1.6	2.8	3.3	8.2	13.6	15.4	43.7	57.6	58.1	39.6	50.8	52.0
Set aside	11.7	11.5	11.4	9.4	7.7	6.9	3.2	1.4	1.4	8.2	4.9	4.7
Don't know/No answer	0.6	0.2	0.2	0.6	0.2	0.3	0.5	0.4	0.3	2.1	0.6	0.5
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
Note: Totals may not sum to 100 due to rounding.