| value | category | cases | |
|---|---|---|---|
| 1998 | 1 |
20%
|
|
| 2001 | 2 |
40%
|
|
| 2003 | 2 |
40%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | DK | 0 |
0%
|
| Sysmiss | 9092 |