| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 1464 |
70%
|
| 2 | No answer | 293 |
14%
|
| 3 | Yes, official documentation (from government) | 160 |
7.7%
|
| 4 | Yes, unofficial documentation (from a learning center, etc.) | 173 |
8.3%
|
| Sysmiss | 994 |