The bulk of top 1 percent earnings comes from capital and business income: Shares of total income from capital and business income, by percentile group, 2015

Lowest quintile 9.9%
Second quintile 4.3%
Middle quintile 4.8%
Fourth quintile 5.7%
81st to 90th 8.3%
91st to 95th 12.3%
96th to 99th 24.2%
Top 1 percent 62.6%

Source: EPI analysis of CBO 2018

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