| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | None | 175 | 67 |
26.2%
|
| 1 | NVTI | 104 | 56 |
21.9%
|
| 2 | City and Guilds | 97 | 60 |
23.4%
|
| 3 | Other | 103 | 73 |
28.5%
|
| Sysmiss | 16693 | 4267 |