| Value | Category | Cases | |
|---|---|---|---|
| 1 | <19 | 1 | 
                                    
                                    0.4%
                                 | 
| 2 | >59 | 11 | 
                                    
                                    4.3%
                                 | 
| 3 | 19-59 | 245 | 
                                    
                                    95.3%
                                 | 
| Sysmiss | 18 |