| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes (observed) | 135 | 
                                    
                                    67.5%
                                 | 
| 2 | Yes (not observed) | 50 | 
                                    
                                    25%
                                 | 
| 3 | No | 15 | 
                                    
                                    7.5%
                                 |