| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 428 | 
                                                                 
                                    
                                    15.1%
                                 
                                                             | 
                                                        
                    
| 1 | 1 year | 236 | 
                                                                 
                                    
                                    8.3%
                                 
                                                             | 
                                                        
                    
| 2 | 2 years | 329 | 
                                                                 
                                    
                                    11.6%
                                 
                                                             | 
                                                        
                    
| 3 | 3 years | 295 | 
                                                                 
                                    
                                    10.4%
                                 
                                                             | 
                                                        
                    
| 4 | 4 years | 170 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    
| 5 | 5 years | 270 | 
                                                                 
                                    
                                    9.5%
                                 
                                                             | 
                                                        
                    
| 6 | 6+ years | 388 | 
                                                                 
                                    
                                    13.7%
                                 
                                                             | 
                                                        
                    
| 7 | non-numeric | 598 | 
                                                                 
                                    
                                    21.1%
                                 
                                                             | 
                                                        
                    
| 8 | don't know | 122 | 
                                                                 
                                    
                                    4.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3919 |