| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, AT LEAST ONCE | 7157 |
18.1%
|
| 2 | NO, ALWAYS SUFFICIENT | 32343 |
81.6%
|
| 8 | DK | 112 |
0.3%
|
| 9 | NO RESPONSE | 20 |
0.1%
|
| Sysmiss | 1900 |