| Value | Category | Cases | |
|---|---|---|---|
| 1 | No - no difficulty | 33289 |
95%
|
| 2 | Yes - some difficulty | 1373 |
3.9%
|
| 3 | Yes - a lot of difficulty | 319 |
0.9%
|
| 4 | Cannot do at all | 56 |
0.2%
|
| Sysmiss | 6975 |