Table A3-47 Standard Mail from Insurance Companies Reaction to Mail Pieces by Familiarity and Shape� (Percentage of Pieces) Postal Fiscal Years 1987, 2006 and 2007 (Diary Data)
Shape	Read (Immediately and Set Aside)			Found Useful			Will Respond
	1987	2006	2007	1987	2006	2007	1987	2006	2007
Previous customer:
Letter size envelope	59.7	62.2	62.3	46.3	47.8	48.6	12.2	10.9	7.3
Larger than    Letter size envelope	69.6	59.1	62.8	49.5	55.0	47.4	11.3	9.7	5.8
Organization known:
Letter size envelope	37.4	24.5	21.3	19.1	11.9	11.2	4.3	0.9	1.5
Larger than    Letter size envelope	39.4	20.5	27.3	29.5	13.0	7.3	10.1	3.2	2.0
Organization unknown:
Letter size envelope	22.2	19.5	21.1	8.6	6.7	5.5	2.0	1.2	0.9
Larger than    Letter size envelope	25.3	23.0	21.4	11.9	4.5	6.1	3.2	0.4	1.6
NOTE: Percentages represent row percentages within each familiarity and shape category; these do not sum to 100 due to the inclusion of multiple questions in this table.
� Fluctuations may be due to small sample sizes.