| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Very much difficult | 29 |
49.2%
|
| 2 | Moderately difficult | 19 |
32.2%
|
| 3 | Somewhat difficult | 7 |
11.9%
|
| 4 | Not difficult at all | 4 |
6.8%
|
| Sysmiss | 1373 |