| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Very much difficult | 36 |
36.4%
|
| 2 | Moderately difficult | 35 |
35.4%
|
| 3 | Somewhat difficult | 19 |
19.2%
|
| 4 | Not difficult at all | 9 |
9.1%
|
| Sysmiss | 499 |