1968
|
1980
|
1996
|
||||
|
|
|
|
|
|
|
Women |
|
|
|
|
|
|
Black |
|
|
|
|
|
|
Under Thirty |
|
|
|
|
|
|
Median Age (years) |
|
|
|
|
|
|
Lawyers |
|
|
|
|
|
|
Teachers |
|
|
|
|
|
|
Union Member |
|
|
|
|
|
|
First Convention |
|
|
|
|
|
|
College Graduate |
|
|
|
|
|
|
Postgraduate |
|
|
|
|
|
|
Protestant |
|
|
|
|
|
|
Catholic |
|
|
|
|
|
|
Jewish |
|
|
|
|
|
|