| Value | Category | Cases | |
|---|---|---|---|
| 1 | Absolutely essential | 489 | 
                                    
                                    40.8%
                                 | 
| 2 | Important | 524 | 
                                    
                                    43.7%
                                 | 
| 3 | Not very important | 90 | 
                                    
                                    7.5%
                                 | 
| 4 | Not important at all | 41 | 
                                    
                                    3.4%
                                 | 
| 5 | Don't know | 40 | 
                                    
                                    3.3%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing data | 16 | 
                                    
                                    1.3%
                                 |