| value | category | cases | |
|---|---|---|---|
| 1969 | 1 |
14.3%
|
|
| 1973 | 1 |
14.3%
|
|
| 1974 | 1 |
14.3%
|
|
| 1977 | 1 |
14.3%
|
|
| 1978 | 1 |
14.3%
|
|
| 1980 | 1 |
14.3%
|
|
| 1984 | 1 |
14.3%
|
|
| Sysmiss | 12470 |