English: After tax household income in the United States for each quintile from 1979 to 2011. The percentage increase (inflation adjusted) in the lowest quintile was 48%, in the second quintile, 37%, in the third quintile 35%, in the fourth quintile 45%, for the 81st to 99th percentile 64%, and for the top one percent, 200%. Data source: The Distribution of Household Income and Federal Taxes, 2011
The source data of the chart is in the SVG image file in a clearly readable format. You see the original numbers inside of the SVG file in the form of a list such as this:
...
1995 10.06
1996 11.75
1997 12.45
...
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