| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 | 
                                
                                0.1%
                             | |
| 1 | 176 | 
                                
                                3.3%
                             | |
| 2 | 147 | 
                                
                                2.7%
                             | |
| 3 | 384 | 
                                
                                7.1%
                             | |
| 4 | 4 | 
                                
                                0.1%
                             | |
| 8 | Don't Know | 2 | 
                                
                                0%
                             | 
| 99 | Not applicable | 4677 | 
                                
                                86.7%
                             | 
| Sysmiss | 1 |