| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 253 |
38.5%
|
| 2 | Somewhat difficult | 286 |
43.5%
|
| 3 | Not difficult at all | 114 |
17.4%
|
| 4 | (DK) | 3 |
0.5%
|
| 5 | (ref) | 1 |
0.2%
|
| Sysmiss | 343 |