| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 0 | 
                                    
                                    0%
                                 | 
| 0 | 99 | 
                                    
                                    77.3%
                                 | |
| 1 | 29 | 
                                    
                                    22.7%
                                 |