| Value | Category | Cases | |
|---|---|---|---|
| 1 | Sufficient | 627 |
14.2%
|
| 2 | Sufficient to certain extent | 573 |
13%
|
| 3 | Not sufficient | 70 |
1.6%
|
| 4 | Long | 609 |
13.8%
|
| 8 | Don't know | 17 |
0.4%
|
| Sysmiss | 2509 |