Figure 2.35: U.S. households by type, 1990–2010.

[Source consulted: “Selected Population Profile in the United States: 2007–2009 American Community Survey 3-Year Estimates,” American FactFinder, U.S. Census Bureau, at http://factfinder2.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=ACS_09_3YR_S0201&prodType=table]