| Value | Category | Cases | |
|---|---|---|---|
| 1 | Absolutely essential | 664 | 
                                    
                                    56.4%
                                 | 
| 2 | Important | 129 | 
                                    
                                    11%
                                 | 
| 3 | Not very important | 41 | 
                                    
                                    3.5%
                                 | 
| 4 | Not important at all | 61 | 
                                    
                                    5.2%
                                 | 
| 5 | Don't know | 280 | 
                                    
                                    23.8%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing data | 2 | 
                                    
                                    0.2%
                                 |