| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | Not at all free | 150 | 
                                    
                                    12.5%
                                 | 
| 2 | Not very free | 142 | 
                                    
                                    11.8%
                                 | 
| 3 | Somewhat free | 291 | 
                                    
                                    24.3%
                                 | 
| 4 | Completely free | 606 | 
                                    
                                    50.5%
                                 | 
| 8 | Refused | 1 | 
                                    
                                    0.1%
                                 | 
| 9 | Don’t know | 10 | 
                                    
                                    0.8%
                                 |