| Value | Category | Cases | |
|---|---|---|---|
| 1 | A week or less | 104 | 
                                                                 
                                    
                                    28.1%
                                 
                                                             | 
                                                        
                    
| 2 | More than a week but less than a month | 58 | 
                                                                 
                                    
                                    15.7%
                                 
                                                             | 
                                                        
                    
| 3 | One to six months | 52 | 
                                                                 
                                    
                                    14.1%
                                 
                                                             | 
                                                        
                    
| 4 | Seven to eleven months | 17 | 
                                                                 
                                    
                                    4.6%
                                 
                                                             | 
                                                        
                    
| 5 | One to five years | 71 | 
                                                                 
                                    
                                    19.2%
                                 
                                                             | 
                                                        
                    
| 6 | More than 5 years | 68 | 
                                                                 
                                    
                                    18.4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 13435 |