| Value | Category | Cases | |
|---|---|---|---|
| 0 | < 1 year completed | 9 | 
                                    
                                    11.1%
                                 | 
| 1 | 9 | 
                                    
                                    11.1%
                                 | |
| 2 | 7 | 
                                    
                                    8.6%
                                 | |
| 3 | 21 | 
                                    
                                    25.9%
                                 | |
| 4 | 11 | 
                                    
                                    13.6%
                                 | |
| 5 | 2 | 
                                    
                                    2.5%
                                 | |
| 6 | 4 | 
                                    
                                    4.9%
                                 | |
| 7 | 4 | 
                                    
                                    4.9%
                                 | |
| 8 | 2 | 
                                    
                                    2.5%
                                 | |
| 9 | 7 | 
                                    
                                    8.6%
                                 | |
| 11 | 5 | 
                                    
                                    6.2%
                                 | |
| 98 | dk | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 15270 |