| Value | Category | Cases | |
|---|---|---|---|
| -5 | Missing; Unknown | 0 |
0%
|
| -4 | Not asked in survey | 16786 |
100%
|
| -3 | Not applicable | 0 |
0%
|
| -2 | No answer | 0 |
0%
|
| -1 | Don´t know | 0 |
0%
|
| 1 | 1981-1984 | 0 |
0%
|
| 2 | 1990-1993 | 0 |
0%
|
| 3 | 1999-2001 | 0 |
0%
|
| 4 | 2008-2010 | 0 |
0%
|