| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. No difficulty | 31809 |
86.9%
|
| 1 | 1. Yes, some difficulty | 346 |
0.9%
|
| 2 | 2. Yes, a lot difficulty | 164 |
0.4%
|
| 3 | 3. He/She is in capable | 155 |
0.4%
|
| Sysmiss | 4147 |
11.3%
|