| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 35334 | 
                                                                 
                                    
                                    76.9%
                                 
                                                             | 
                                                        
                    
| 2 | Very weak | 2614 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    
| 3 | Weak | 3861 | 
                                                                 
                                    
                                    8.4%
                                 
                                                             | 
                                                        
                    
| 4 | Strong | 3220 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    
| 5 | Very strong | 900 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 24707 |