| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, EMPTIED | 1262 |
11.6%
|
| 4 | NO, NEVER EMPTIED | 9300 |
85.6%
|
| 8 | DK | 302 |
2.8%
|
| 9 | NO RESPONSE | 3 |
0%
|
| Sysmiss | 1933 |