Value | Category | Cases | |
---|---|---|---|
99 | 99. Don't know | 0 |
0%
|
1980 | 3 |
8.3%
|
|
1981 | 5 |
13.9%
|
|
1982 | 6 |
16.7%
|
|
1983 | 5 |
13.9%
|
|
1984 | 6 |
16.7%
|
|
1985 | 3 |
8.3%
|
|
1986 | 3 |
8.3%
|
|
1987 | 3 |
8.3%
|
|
1988 | 2 |
5.6%
|
|
Sysmiss | 63 |