| Value | Category | Cases | |
|---|---|---|---|
| 0 | Pre-primay | 18 |
9.6%
|
| 1 | Primary | 33 |
17.6%
|
| 2 | Unclassified | 0 |
0%
|
| 5 | Missing | 0 |
0%
|
| 9 | NA | 136 |
72.7%
|