All Races |
Whites | Blacks | ||||
| Year | Number | % | Number | % | Number | % |
| 1960 | 224,300 | 5.3 | 82,500 | 2.3 | 138,744 | 23.0 |
| 1965 | 291,200 | 7.7 | 123,700 | 4.0 | 162,215 | 27.9 |
| 1970 | 398,700 | 10.7 | 175,100 | 5.7 | 215,100 | 37.6 |
| 1975 | 447,900 | 14.2 | 186,400 | 7.3 | 249,600 | 48.8 |
| 1980 | 665,747 | 18.4 | 320,063 | 11.0 | 325,737 | 55.2 |
| 1985 | 828,174 | 22.0 | 432969 | 14.5 | 365,527 | 60.1 |
| 1989 | 1,165,169 | 27.1 | 593,911 | 19.0 | 457,480 | 64.2 |
| 1990 | 1,165,384 | 28.0 | 647,376 | 21.0 | 472,660 | 65.2 |
Source: U.S. Bureau of Census; U.S. House of Representatives, Committee on Ways and
Means