| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Received no inject. | 74 | 
                                    
                                    37.9%
                                 | 
| 1 | 32 | 
                                    
                                    16.4%
                                 | |
| 2 | 47 | 
                                    
                                    24.1%
                                 | |
| 3 | 39 | 
                                    
                                    20%
                                 | |
| 4 | 1 | 
                                    
                                    0.5%
                                 | |
| 7 | 7+ | 0 | 
                                    
                                    0%
                                 | 
| 8 | Don't know | 2 | 
                                    
                                    1%
                                 | 
| 9 | 5 | ||
| Sysmiss | 2850 |