| Value | Category | Cases | |
|---|---|---|---|
| 1 | Absolutely essential | 430 | 
                                    
                                    36.5%
                                 | 
| 2 | Important | 134 | 
                                    
                                    11.4%
                                 | 
| 3 | Not very important | 80 | 
                                    
                                    6.8%
                                 | 
| 4 | Not important at all | 200 | 
                                    
                                    17%
                                 | 
| 5 | Don't know | 326 | 
                                    
                                    27.7%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing data | 7 | 
                                    
                                    0.6%
                                 |