| Value | Category | Cases | |
|---|---|---|---|
| 1 | then | 25 | 
                                    
                                    67.6%
                                 | 
| 2 | later | 9 | 
                                    
                                    24.3%
                                 | 
| 3 | not at all | 3 | 
                                    
                                    8.1%
                                 | 
| Sysmiss | 15314 |