| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, EMPTIED | 1699 |
21%
|
| 4 | NO, NEVER EMPTIED | 689 |
8.5%
|
| 8 | DK | 60 |
0.7%
|
| Sysmiss | 5653 |
69.8%
|