| Value | Category | Cases | |
|---|---|---|---|
| 1 | six months | 159 | 
                                    
                                    15.9%
                                 | 
| 2 | 12 months | 160 | 
                                    
                                    16%
                                 | 
| 3 | 24 months or more | 270 | 
                                    
                                    27%
                                 | 
| 4 | I won't accept | 411 | 
                                    
                                    41.1%
                                 |