Table 1. Income Inequality.
Family Income Shares by Quintile.
Year
Bottom
Second
Middle
Fourth
Top
1947
5.0
11.9
17.0
23.1
43.0
1967
5.4
12.2
17.5
23.5
41.1
1979
5.2
11.6
17.5
24.1
41.7
1989
4.6
10.6
16.5
23.7
44.6
1995
4.4
10.1
15.8
23.2
46.5