| Value | Category | Cases | |
|---|---|---|---|
| 1 | grade 1 | 0 | 
                                    
                                    0%
                                 | 
| 2 | grade 2 | 0 | 
                                    
                                    0%
                                 | 
| 3 | grade 3 | 0 | 
                                    
                                    0%
                                 | 
| 4 | grade 4 | 233 | 
                                    
                                    100%
                                 | 
| 5 | grade 5 | 0 | 
                                    
                                    0%
                                 | 
| 6 | Pre-school | 0 | 
                                    
                                    0%
                                 | 
| 7 | Kindergarten | 0 | 
                                    
                                    0%
                                 | 
| 8 | Special needs | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 991 |