| Value | Category | Cases | |
|---|---|---|---|
| 0 | Pre-primay | 45 | 
                                
                                21.2%
                             | 
| 1 | Primary | 164 | 
                                
                                77.4%
                             | 
| 2 | Unclassified | 3 | 
                                
                                1.4%
                             | 
| 5 | Missing | 0 | 
                                
                                0%
                             | 
| 9 | NA | 0 | 
                                
                                0%
                             |