| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| -88 | Refusal | 0 | 
                                    
                                    0%
                                 | 
| -77 | Not applicable | 0 | 
                                    
                                    0%
                                 | 
| 0 | 122 | 
                                    
                                    89.7%
                                 | |
| 1 | 6 | 
                                    
                                    4.4%
                                 | |
| 2 | 7 | 
                                    
                                    5.1%
                                 | |
| 5 | 1 | 
                                    
                                    0.7%
                                 | |
| Sysmiss | 799 |