Value | Category | Cases | |
---|---|---|---|
777 | Don't Know | 0 |
0%
|
1991 | 3 |
3.3%
|
|
1992 | 36 |
39.6%
|
|
1993 | 29 |
31.9%
|
|
1994 | 23 |
25.3%
|
|
Sysmiss | 5490 |