Census Bureau data
According to DiNitto (2007), for "men who worked year-round, full-time" in 2002, the higher their educational level the higher was their income " (p. 95).
According to DiNitto (citing U.S. Census Bureau, Current Population Survey, 2003), "white men with less than a 9th grade education, earned $23,999 in 2002. However, white men with a master's degree, earned $75,187 that year" (p. 95).
DiNitto, D.M. (2007) Defining poverty: Where to begin (pp. 80-123) in Social welfare: Politics and public policy. Boston: Pearson Education, Inc.