| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 329 |
7.2%
|
| 2 | Primary | 1783 |
39%
|
| 3 | Secondary | 1615 |
35.3%
|
| 4 | Tertiary | 582 |
12.7%
|
| 9 | Not stated | 265 |
5.8%
|