| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, no difficulty | 25330 |
96.9%
|
| 2 | Yes, some | 392 |
1.5%
|
| 3 | Yes, a lot | 73 |
0.3%
|
| 4 | Cannot do | 353 |
1.4%
|
| Sysmiss | 1104 |