| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 128 |
14.3%
|
| 2 | Somewhat difficult | 390 |
43.5%
|
| 3 | Not difficult at all | 368 |
41%
|
| 4 | (DK) | 8 |
0.9%
|
| 5 | (ref) | 3 |
0.3%
|
| Sysmiss | 103 |