U.S. distribution of household budgets: Bureau of Labor Statistics, U.S. Department of Labor.
Consumer expenditures in various categories: Bureau of Labor Statistics, U.S. Department of Labor.
Total number of passenger cars: U.S. Bureau of Transportation Statistics, U.S. Department of Transportation.
Charitable donations: www.givingUSA.com
Organic foods sales: 2012 Organic Industry Survey, Organic Trade Association.
NBA Jerseys: “Top-Selling NBA Jerseys in the United States and Internationally,” Forbes, June 21, 2012.