| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 270 | 
                                    
                                    39.8%
                                 | |
| 2018 | 16 | 
                                    
                                    2.4%
                                 | |
| 2019 | 393 | 
                                    
                                    57.9%
                                 | |
| Sysmiss | 276 |