| Value | Category | Cases | |
|---|---|---|---|
| 2 | MORE THAN ONCE | 214 | 
                                    
                                    5.1%
                                 | 
| 2 | MORE THAN ONCE | 178 | 
                                    
                                    4.2%
                                 | 
| Sysmiss | 3843 | 
                                    
                                    90.7%
                                 |