| Value | Category | Cases | |
|---|---|---|---|
| 1 | Public/government-run | 2810 | 
                                    
                                    86.1%
                                 | 
| 2 | Private/non-government-run | 422 | 
                                    
                                    12.9%
                                 | 
| 3 | Open system | 32 | 
                                    
                                    1%
                                 | 
| Sysmiss | 21680 |