Table A2-38 First-Class Mail -- Personal Letters and Cards (not greeting cards) Sent by Households in an Average Month -- by Age of Head of Household Postal Fiscal Years 1987, 2006 and 2007 (Recruitment and Diary Data)
Age	Pieces Per Household Per Month
	Recruitment Interview � (Perceived volume)			Diary Data (Actual Volume)
	1987	2006	2007	1987	2006	2007
18 - 21	6.6	3.6	2.5	2.4	0.6	0.4
21 - 24	3.5	4.2	3.0	2.2	0.9	1.1
25 - 34	4.2	3.2	3.9	2.8	0.7	0.7
35 - 44	4.3	3.6	4.1	2.6	0.7	0.7
45 - 54	5.0	3.7	4.2	3.0	0.9	0.6
55 - 64	5.4	3.9	5.0	3.7	0.8	1.1
65 - 69	5.1	4.4	4.7	2.8	1.1	1.0
70 - 74	6.0	5.0	4.8	3.5	1.5	1.7
75+			5.7			1.5
� Includes thank you notes.