| Value | Category | Cases | |
|---|---|---|---|
| -1 | -1. TOO YOUNG TO DETERMINE | 523 |
0.6%
|
| 1 | 1. No, no difficulty | 78756 |
97.3%
|
| 2 | 2. Yes, some | 988 |
1.2%
|
| 3 | 3. Yes, a lot | 205 |
0.3%
|
| 4 | 4. Cannot do | 503 |
0.6%
|
| Sysmiss | 26693 |