| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Never | 2486 | 7517798 | 
                                                                 
                                    
                                    23.7%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 2 | 1-3 times | 7424 | 21651070 | 
                                                                 
                                    
                                    68.2%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 3 | 3+ times | 993 | 2543996 | 
                                                                 
                                    
                                    8%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 99 | Not stated | 13 | 55053 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             |