Table A2-13 First-Class Mail Received -- by Number of Credit Cards Postal Fiscal Years 1987, 2008 and 2009 (Recruitment and Diary Data)															YEAR	A215COL	MEAN
															2008		9.410083
															2008	NONE	5.744458
															2008	LOW	7.724075
															2008	MEDIUM	10.08952
															2008	HIGH	11.92664
															2009		9.499055
Number of Credit Cards	None			Low (1-3)			Medium (4-7)			High (8+)					2009	NONE	5.33372
															2009	LOW	7.484348
	1987	2008	2009	1987	2008	2009	1987	2008	2009	1987	2008	2009			2009	MEDIUM	9.400953
															2009	HIGH	11.07721
Pieces per Household per Week	4.8	5.7	5.3	7.3	7.7	7.5	9.9	10.1	9.4	13.2	11.9	11.1