| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. No difficulty | 30909 |
84.4%
|
| 1 | 1. Yes, some difficulty | 1268 |
3.5%
|
| 2 | 2. Yes, a lot difficulty | 265 |
0.7%
|
| 3 | 3. He/She is in capable | 32 |
0.1%
|
| Sysmiss | 4147 |
11.3%
|