| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1429 |
68.8%
|
| 2 | Primary | 238 |
11.5%
|
| 3 | Secondary | 285 |
13.7%
|
| 4 | Superior | 123 |
5.9%
|
| 9 | 3 |
0.1%
|