| Value | Category | Cases | |
|---|---|---|---|
| 1 | Absolutely essential | 482 | 
                                    
                                    41%
                                 | 
| 2 | Important | 135 | 
                                    
                                    11.5%
                                 | 
| 3 | Not very important | 55 | 
                                    
                                    4.7%
                                 | 
| 4 | Not important at all | 165 | 
                                    
                                    14%
                                 | 
| 5 | Don't know | 339 | 
                                    
                                    28.8%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing data | 1 | 
                                    
                                    0.1%
                                 |