| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, EMPTIED | 56 |
3.8%
|
| 4 | NO, NEVER EMPTIED | 41 |
2.8%
|
| 8 | DK | 4 |
0.3%
|
| Sysmiss | 1358 |
93.1%
|