| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, no difficulty | 38225 |
97.4%
|
| 2 | Yes, some | 763 |
1.9%
|
| 3 | Yes, a lot | 232 |
0.6%
|
| 4 | Cannot do at all | 43 |
0.1%
|
| Sysmiss | 6055 |