| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 20 | 
                                
                                9.4%
                             | 
| 2 | Some of it | 18 | 
                                
                                8.5%
                             | 
| 3 | Most of it | 33 | 
                                
                                15.6%
                             | 
| 4 | All of it | 53 | 
                                
                                25%
                             | 
| 5 | Missing | 2 | 
                                
                                0.9%
                             | 
| 9 | Not Applicable | 86 | 
                                
                                40.6%
                             |