| Value | Category | Cases | |
|---|---|---|---|
| 1 | HAS CERTIFICATE | 8446 |
35.8%
|
| 2 | REGISTERED | 3081 |
13.1%
|
| 3 | NEITHER | 10959 |
46.5%
|
| 4 | DON'T KNOW | 444 |
1.9%
|
| Sysmiss | 662 |
2.8%
|