References:

1 Duly, Abby; Janini, George Keil, Eric J Paszkiewicz, Laura Et al. "Consumer expenditures for selected items, 1999 and 2000." Monthly Labor Review v. 126

no. 5 (May 2003) p. 3-9.

2 Bahizi, Pierre. "Retirement expenditures for Whites, Blacks, and persons of Hispanic origin."Monthly Labor Review 126, no. 6 (Jun 2003) p. 20-22.

3 "Consumer Expenditures in 2002." US. Department of Labor: Bureau of Labor Statistics 2004. <http://stats.bls.gov/cex/csxann02.pdf>.

4 "Expenditure per Consumer Unit for Entertainment." Infoplease Online. May 28, 2004. <http://www.infoplease.com/ipa/A0908759.html>.

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