| Value | Category | Cases | |
|---|---|---|---|
| -998 | Dont know | 0 | 
                                    
                                    0%
                                 | 
| 2 | 10 | 
                                    
                                    7.6%
                                 | |
| 3 | 40 | 
                                    
                                    30.5%
                                 | |
| 4 | 36 | 
                                    
                                    27.5%
                                 | |
| 5 | 25 | 
                                    
                                    19.1%
                                 | |
| 6 | 13 | 
                                    
                                    9.9%
                                 | |
| 7 | 1 | 
                                    
                                    0.8%
                                 | |
| 8 | 3 | 
                                    
                                    2.3%
                                 | |
| 10 | 1 | 
                                    
                                    0.8%
                                 | |
| 12 | 2 | 
                                    
                                    1.5%
                                 |