| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -96 | Other | 4 | 
                                                                 
                                    
                                    3.1%
                                 
                                                             | 
                                                        
                    
| -95 | 1 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    |
| 1 | One time only | 10 | 
                                                                 
                                    
                                    7.7%
                                 
                                                             | 
                                                        
                    
| 2 | Once a month | 1 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    
| 3 | Several times a month | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 4 | Twice a year | 10 | 
                                                                 
                                    
                                    7.7%
                                 
                                                             | 
                                                        
                    
| 5 | Ongoing | 104 | 
                                                                 
                                    
                                    80%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 80 |