| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 77 |
43%
|
| 2 | less than 20% | 10 |
5.6%
|
| 3 | 20-50% | 10 |
5.6%
|
| 4 | more than 50% | 68 |
38%
|
| 5 | don't know | 14 |
7.8%
|
| Sysmiss | 3314 |