| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No, no difficulty | 24101 |
97.8%
|
| 2 | 2. Yes, some | 374 |
1.5%
|
| 3 | 3. Yes, a lot | 118 |
0.5%
|
| 4 | 4. Cannot do | 39 |
0.2%
|
| Sysmiss | 2789 |