| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| 1 | 1-2 indicators | 115 | 
                                                                 
                                    
                                    38.9%
                                 
                                                             | 
                                                        
                    
| 2 | 3-9 indicators | 136 | 
                                                                 
                                    
                                    45.9%
                                 
                                                             | 
                                                        
                    
| 3 | 10 or more indicators | 42 | 
                                                                 
                                    
                                    14.2%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 476 |