| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 392 |
43.6%
|
| 2 | Somewhat difficult | 292 |
32.5%
|
| 3 | Not difficult at all | 209 |
23.2%
|
| 4 | (DK) | 6 |
0.7%
|
| 5 | (ref) | 0 |
0%
|
| Sysmiss | 101 |