| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 141 |
37.5%
|
| 2 | A little difficult | 175 |
46.5%
|
| 3 | Not difficult | 60 |
16%
|
| 4 | Don?t know | 0 |
0%
|
| Sysmiss | 457 |