| Value | Category | Cases | |
|---|---|---|---|
| 1 | No - no difficulty | 19291 |
96%
|
| 2 | Yes - some difficulty | 542 |
2.7%
|
| 3 | Yes - a lot of difficulty | 201 |
1%
|
| 4 | Cannot do at all | 52 |
0.3%
|
| Sysmiss | 5356 |