| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. No difficulty | 31542 |
86.1%
|
| 1 | 1. Yes, some difficulty | 704 |
1.9%
|
| 2 | 2. Yes, a lot difficulty | 176 |
0.5%
|
| 3 | 3. He/She is in capable | 52 |
0.1%
|
| Sysmiss | 4147 |
11.3%
|