| Value | Category | Cases | |
|---|---|---|---|
| 1 | Absolutely essential | 461 | 
                                    
                                    39.2%
                                 | 
| 2 | Important | 153 | 
                                    
                                    13%
                                 | 
| 3 | Not very important | 61 | 
                                    
                                    5.2%
                                 | 
| 4 | Not important at all | 193 | 
                                    
                                    16.4%
                                 | 
| 5 | Don't know | 308 | 
                                    
                                    26.2%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing data | 1 | 
                                    
                                    0.1%
                                 |