| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused to answer | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -88 | Not provided | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -77 | Not applicable | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -66 | Do not know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | No obstacle | 192 | 
                                                                 
                                    
                                    24.6%
                                 
                                                             | 
                                                        
                    
| 2 | Minor obstacle | 132 | 
                                                                 
                                    
                                    16.9%
                                 
                                                             | 
                                                        
                    
| 3 | Moderate obstacle | 124 | 
                                                                 
                                    
                                    15.9%
                                 
                                                             | 
                                                        
                    
| 4 | Major obstacle | 144 | 
                                                                 
                                    
                                    18.4%
                                 
                                                             | 
                                                        
                    
| 5 | Very severe obstacle | 189 | 
                                                                 
                                    
                                    24.2%
                                 
                                                             |