| Value | Category | Cases | |
|---|---|---|---|
| 1 | privatised | 636 | 
                                                                 
                                    
                                    76.9%
                                 
                                                             | 
                                                        
                    
| 2 | inherited | 157 | 
                                                                 
                                    
                                    19%
                                 
                                                             | 
                                                        
                    
| 3 | purchased | 28 | 
                                                                 
                                    
                                    3.4%
                                 
                                                             | 
                                                        
                    
| 4 | cleared | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 5 | other | 5 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 955 |