Did you know your data removed capital gains from the equation in order to look like that?
Nice try TB, for a moment I thought you actually believed your own BS....
According to CBO,[61] the major reason for observed rise in unequal distribution of after-tax income was an increase in market income, that is household income before taxes and transfers. Market income for a household is a combination of labor income (such as cash wages, employer-paid benefits, employer-paid payroll taxes), business income (such as income from businesses and farms operated solely by their owners), capital gains (profits realized from the sale of assets, stock options), capital income (such as interest from deposits, dividends, rental income), and other income. Of these, capital gains accounted for 80% of the increase in market income for the households in top 20%, in the 2000–2007 period. Even over 1991–2000 period, according to CBO, capital gains accounted for 45% of the market income for the top 20% households.
https://en.wikipedia.org/wiki/Income_inequality_in_the_United_States
(Yes, CBO via wikipedia)