Upper
Middle
Median household income in 2018
Lower
Share of US aggregate income
28,700
2018
2000
20,000
Upper
Middle
Lower
1970
2018
10%
9%
62%
43%
29%
48%
1970
28,200
28,700
58,100
81,700
86,600
1970
2000
2018
86,600
126,100
192,200
207,400
1970
2000
2018
207,400
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