| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 1 |
0.8%
|
| 2 | Small extent | 23 |
17.8%
|
| 3 | Medium extent | 87 |
67.4%
|
| 4 | To a high extent | 18 |
14%
|
| Sysmiss | 621 |