| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 102 |
26.4%
|
| 2 | not permanent | 127 |
32.8%
|
| 3 | a few | 64 |
16.5%
|
| 4 | yes | 94 |
24.3%
|
| Sysmiss | 34 |