| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 6 months | 476 | 
                                                                 
                                    
                                    32.4%
                                 
                                                             | 
                                                        
                    
| 2 | Between 6-12 months | 361 | 
                                                                 
                                    
                                    24.6%
                                 
                                                             | 
                                                        
                    
| 3 | One year or more | 632 | 
                                                                 
                                    
                                    43%
                                 
                                                             |