| Value | Category | Cases | |
|---|---|---|---|
| 1 | Absolutely essential | 930 | 
                                    
                                    77%
                                 | 
| 2 | Important | 204 | 
                                    
                                    16.9%
                                 | 
| 3 | Not very important | 59 | 
                                    
                                    4.9%
                                 | 
| 4 | Not important at all | 11 | 
                                    
                                    0.9%
                                 | 
| 5 | Don't know | 3 | 
                                    
                                    0.2%
                                 | 
| 98 | Refused | 1 | 
                                    
                                    0.1%
                                 | 
| 99 | Missing data | 0 | 
                                    
                                    0%
                                 |