| Value | Category | Cases | |
|---|---|---|---|
| 0 | Incorrect/Do not know | 18 | 
                                    
                                    1%
                                 | 
| 1 | Correct | 59 | 
                                    
                                    3.2%
                                 | 
| 2 | 67 | 
                                    
                                    3.7%
                                 | |
| 3 | 147 | 
                                    
                                    8.1%
                                 | |
| 4 | 1472 | 
                                    
                                    80.8%
                                 | |
| 999 | Refused/Skipped | 58 | 
                                    
                                    3.2%
                                 | 
| Sysmiss | 1 |