| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, AT LEAST ONCE | 1290 |
12.4%
|
| 2 | NO, ALWAYS SUFFICIENT | 7540 |
72.4%
|
| 8 | DK | 14 |
0.1%
|
| 9 | NO RESPONSE | 3 |
0%
|
| Sysmiss | 1566 |
15%
|