| Value | Category | Cases | |
|---|---|---|---|
| 1996 | 451476 | 
                                    
                                    93%
                                 | |
| 1997 | 34014 | 
                                    
                                    7%
                                 | |
| 9997 | N/A | 0 | |
| 9998 | Invalid | 0 | |
| 9999 | Missing | 0 |