| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Very much difficult | 26 |
37.1%
|
| 2 | Moderately difficult | 38 |
54.3%
|
| 3 | Somewhat difficult | 5 |
7.1%
|
| 4 | Not difficult at all | 1 |
1.4%
|
| Sysmiss | 275 |