The U.S. middle class has faced a huge "inequality tax" in recent decades: Household income of the broad middle class, actual and projected, assuming it grew at overall average rate, 1979–2013

Year  Actual  Projected
1979  $ 61,550  $ 61,550
1980  $ 59,506  $ 59,527
1981  $ 59,157  $ 59,317
1982  $ 58,082  $ 59,213
1983  $ 57,173  $ 59,520
1984  $ 60,506  $ 62,684
1985  $ 60,492  $ 63,780
1986  $ 62,343  $ 68,523
1987  $ 61,433  $ 66,324
1988  $ 62,300  $ 69,100
1989  $ 63,164  $ 69,648
1990  $ 63,402  $ 69,136
1991  $ 62,430  $ 67,433
1992  $ 62,824  $ 69,370
1993  $ 63,483  $ 69,654
1994  $ 64,001  $ 70,576
1995  $ 66,000  $ 73,309
1996  $ 66,706  $ 75,677
1997  $ 67,795  $ 78,567
1998  $ 70,031  $ 82,290
1999  $ 71,814  $ 85,759
2000  $ 71,697  $ 86,986
2001  $ 71,770  $ 82,500
2002  $ 70,123  $ 79,095
2003  $ 70,210  $ 80,289
2004  $ 72,569  $ 85,040
2005  $ 73,757  $ 89,278
2006  $ 74,463  $ 91,847
2007  $ 76,402  $ 94,239
2008  $ 73,541  $ 86,863
2009  $ 72,693  $ 82,429
2010  $ 72,829  $ 84,614
2011  $ 72,079  $ 83,608
2012  $ 72,011  $ 87,419
2013  $ 73,535  $ 86,215

Note: Data show average income of households in the 20th–80th percentile.

Source: EPI analysis of data from the Congressional Budget Office (2016). Reproduced from Figure I in Raising America’s Pay: Why It’s Our Central Economic Policy Challenge.

Source: EPI analysis of data from The Distribution of Household Income and Federal Taxes, 2011, the Congressional Budget Office, 2014.

Reproduced from Figure I in Raising America’s Pay: Why It’s Our Central Economic Policy Challenge, by Josh Bivens, Elise Gould, Lawrence Mishel, and Heidi Shierholz, Economic Policy Institute, 2014.

View the underlying data on epi.org.