| Value | Category | Cases | |
|---|---|---|---|
| 1 | Much more | 121 | 
                                    
                                    10.1%
                                 | 
| 2 | More | 145 | 
                                    
                                    12.1%
                                 | 
| 3 | About the same | 159 | 
                                    
                                    13.3%
                                 | 
| 4 | Less | 169 | 
                                    
                                    14.1%
                                 | 
| 5 | Much less | 97 | 
                                    
                                    8.1%
                                 | 
| 6 | Do not know | 412 | 
                                    
                                    34.3%
                                 | 
| 98 | Refused | 6 | 
                                    
                                    0.5%
                                 | 
| 99 | Missing data | 91 | 
                                    
                                    7.6%
                                 |