https://en.m.wikipedia.org/wiki/Income_inequality_in_the_Uni...
It's all in the top 10 or 20%.
https://www.businessinsider.com/american-billionaires-tax-av...
Bingo. And don't forget that the AVERAGE number of earners in a top-quintile household is 2![0]
[0] https://www.aei.org/carpe-diem/explaining-us-income-inequali...
https://www.businessinsider.com/american-billionaires-tax-av...