Value | Category | Cases | |
---|---|---|---|
-2 | Refusal to answer | 0 |
0%
|
-1 | Don't know | 0 |
0%
|
1982 | 1 |
20%
|
|
1983 | 1 |
20%
|
|
1990 | 1 |
20%
|
|
1994 | 1 |
20%
|
|
1999 | 1 |
20%
|