2.2.3	Share of Total U.S. Households, by Census Region, Division, and Vintage, as of 2005
			Prior to		1950 to		1970 to		1980 to		1990 to		2000 to
Region			1950		1969		1979		1989		1999		2005			All Vintages
Northeast			6.7%		5.2%		2.4%		2.1%		1.3%		0.8%			18.5%
New England			2.1%		1.2%		0.5%		0.5%		0.3%		0.3%			4.9%
Middle Atlantic			4.6%		4.0%		1.9%		1.6%		1.0%		0.5%			13.6%
Midwest			5.7%		5.8%		3.6%		2.5%		3.7%		1.7%			23.0%
East North Central			4.3%		3.9%		2.7%		1.8%		2.1%		1.1%			16.0%
West North Central			1.4%		1.9%		0.9%		0.7%		1.6%		0.6%			7.1%
South			4.0%		6.9%		6.4%		7.5%		7.5%		4.3%			36.6%
South Atlantic			2.0%		3.4%		3.5%		4.2%		4.3%		2.2%			17.4%
East South Central			0.9%		1.3%		0.9%		1.0%		1.3%		0.7%			6.2%
West South Central			1.2%		2.3%		4.7%		2.2%		1.8%		1.4%			13.6%
West			3.4%		4.6%		4.5%		4.6%		3.1%		1.5%			21.8%
Mountain			0.7%		1.2%		1.3%		1.5%		1.3%		0.9%			6.8%
Pacific			2.8%		3.4%		3.3%		3.1%		1.8%		0.6%			15.0%
United States			19.9%		22.5%		17.0%		16.7%		15.6%		8.3%			100%