| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very difficult | 59 |
6.4%
|
| 2 | Somewhat difficult | 160 |
17.3%
|
| 3 | Not difficult at all | 700 |
75.8%
|
| 4 | (DK) | 2 |
0.2%
|
| 5 | (ref) | 2 |
0.2%
|
| Sysmiss | 77 |