| Value | Category | Cases | |
|---|---|---|---|
| 1 | then | 4 | 
                                    
                                    80%
                                 | 
| 2 | later | 0 | 
                                    
                                    0%
                                 | 
| 3 | not at all | 1 | 
                                    
                                    20%
                                 | 
| Sysmiss | 15346 |