| Value | Category | Cases | |
|---|---|---|---|
| 1 | six months | 52 | 
                                    
                                    17.3%
                                 | 
| 2 | 12 months | 53 | 
                                    
                                    17.7%
                                 | 
| 3 | 24 months or more | 125 | 
                                    
                                    41.7%
                                 | 
| 4 | I won't accept | 70 | 
                                    
                                    23.3%
                                 |