| Value | Category | Cases | |
|---|---|---|---|
| 1 | Higher | 84 |
2.6%
|
| 2 | Intermediate | 273 |
8.4%
|
| 3 | None | 1937 |
59.5%
|
| 4 | Primary | 669 |
20.6%
|
| 5 | Secondary | 268 |
8.2%
|
| 6 | Unknown | 23 |
0.7%
|