| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, not at all | 28931 |
94.7%
|
| 2 | Yes, some difficulty | 1375 |
4.5%
|
| 3 | Yes, a lot of difficulty | 235 |
0.8%
|
| 4 | Cannot perform | 18 |
0.1%
|
| Sysmiss | 5749 |