| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | No, none | 311 | 
                                    
                                    25.9%
                                 | 
| 1 | Yes, one or two | 421 | 
                                    
                                    35.1%
                                 | 
| 2 | Yes, some | 291 | 
                                    
                                    24.3%
                                 | 
| 3 | Yes, several | 166 | 
                                    
                                    13.8%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know | 11 | 
                                    
                                    0.9%
                                 |