Value | Category | Cases | |
---|---|---|---|
0 | 78 |
20.8%
|
|
1 | Before 1990 | 82 |
21.9%
|
2 | From 1990-95 | 52 |
13.9%
|
3 | since 1995 | 124 |
33.1%
|
4 | 2001-2002 | 27 |
7.2%
|
9 | Don't know | 12 |
3.2%
|
Sysmiss | 2558 |