| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, AT LEAST ONCE | 829 |
17.4%
|
| 2 | NO, ALWAYS SUFFICIENT | 3243 |
67.9%
|
| 8 | DK | 9 |
0.2%
|
| 9 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 695 |
14.5%
|