| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | Not at all free | 41 | 
                                    
                                    3.4%
                                 | 
| 2 | Not very free | 24 | 
                                    
                                    2%
                                 | 
| 3 | Somewhat free | 204 | 
                                    
                                    17%
                                 | 
| 4 | Completely free | 887 | 
                                    
                                    73.9%
                                 | 
| 8 | Refused | 4 | 
                                    
                                    0.3%
                                 | 
| 9 | Don’t know | 40 | 
                                    
                                    3.3%
                                 |