| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 4 |
80%
|
|
| 2005 | 1 |
20%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | DK | 0 |
0%
|
| Sysmiss | 8439 |