| Value | Category | Cases | |
|---|---|---|---|
| -3 | INAP; No spouse | 283 | 
                                    
                                    23.6%
                                 | 
| -2 | No answer | 13 | 
                                    
                                    1.1%
                                 | 
| 1 | Lower | 398 | 
                                    
                                    33.2%
                                 | 
| 2 | Middle | 349 | 
                                    
                                    29.1%
                                 | 
| 3 | Higher | 157 | 
                                    
                                    13.1%
                                 |