| Year | Number of households (thousands) |
Percent of all house- holds |
Median income | House- holder poverty rate |
Percent with specified level of relative income |
|||
|---|---|---|---|---|---|---|---|---|
| Value | SE | Low | Middle | High | ||||
| 1969 | 2,359 | 3.7 | $23,893 | $505 | 16.8 | 20.6 | 57.2 | 22.2 |
| 1970 | 2,634 | 4.1 | $24,694 | $454 | 14.5 | 17.8 | 59.8 | 22.4 |
| 1971 | 2,908 | 4.4 | $24,755 | $356 | 16.9 | 20.7 | 56.7 | 22.6 |
| 1972 | 3,149 | 4.6 | $24,736 | $432 | 14.9 | 19.4 | 59.6 | 21.0 |
| 1973 | 3,431 | 4.9 | $25,928 | $509 | 14.4 | 18.8 | 58.5 | 22.7 |
| 1974 | 3,654 | 5.1 | $23,656 | $478 | 15.2 | 20.8 | 61.4 | 17.8 |
| 1975 | 4,084 | 5.6 | $23,730 | $413 | 15.2 | 19.7 | 59.3 | 21.1 |
| 1976 | 4,296 | 5.8 | $24,037 | $433 | 14.3 | 18.6 | 60.4 | 21.0 |
| 1977 | 4,913 | 6.5 | $25,322 | $252 | 12.9 | 18.1 | 61.5 | 20.4 |
| 1978 | 4,992 | 6.5 | $26,499 | $436 | 12.4 | 17.2 | 60.9 | 21.9 |
| 1979 | 5,480 | 6.8 | $26,514 | $505 | 12.2 | 17.9 | 61.6 | 20.5 |
| 1980 | 5,803 | 7.0 | $25,361 | $480 | 13.9 | 18.1 | 60.9 | 21.0 |
| 1981 | 5,990 | 7.2 | $25,874 | $389 | 13.5 | 19.1 | 57.1 | 23.8 |
| 1982 | 5,827 | 6.9 | $26,035 | $436 | 14.7 | 19.1 | 58.0 | 22.9 |
| 1983 | 5,895 | 6.9 | $24,732 | $506 | 15.5 | 20.4 | 57.0 | 22.5 |
| 1984 | 6,308 | 7.3 | $25,990 | $405 | 13.2 | 19.5 | 57.7 | 22.8 |
| 1985 | 6,604 | 7.5 | $26,820 | $351 | 13.2 | 19.3 | 58.7 | 22.0 |
| 1986 | 6,445 | 7.2 | $27,200 | $547 | 13.6 | 19.5 | 59.1 | 21.4 |
| 1987 | 6,899 | 7.6 | $27,623 | $375 | 13.2 | 20.3 | 58.1 | 21.6 |
| 1988 | 7,277 | 7.8 | $27,603 | $417 | 14.0 | 20.7 | 57.7 | 21.6 |
| 1989 | 7,107 | 7.6 | $27,854 | $450 | 11.5 | 18.1 | 60.1 | 21.8 |
| 1990 | 7,440 | 7.9 | $26,410 | $467 | 13.2 | 19.0 | 61.5 | 19.5 |
| 1991 | 7,527 | 7.9 | $25,920 | $412 | 12.5 | 18.8 | 60.5 | 20.7 |
| 1992 | 7,475 | 7.8 | $25,721 | $499 | 13.3 | 20.3 | 58.9 | 20.8 |
| 1993 | 7,444 | 7.7 | $25,908 | $417 | 13.5 | 20.0 | 59.4 | 20.6 |
| 1994 | 7,911 | 8.0 | $25,419 | $419 | 14.6 | 20.9 | 59.7 | 19.4 |
| 1995 | 8,004 | 8.0 | $25,880 | $407 | 13.7 | 20.2 | 58.5 | 21.3 |
| 1996 | 8,145 | 8.1 | $26,898 | $459 | 12.3 | 18.7 | 60.6 | 20.7 |
Source: U. S. Bureau of the Census, March Current Population Surveys.