| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-11 | 602 | 
                                    
                                    16%
                                 | 
| 2 | 12-23 | 708 | 
                                    
                                    18.8%
                                 | 
| 3 | 24-35 | 761 | 
                                    
                                    20.3%
                                 | 
| 4 | 36-47 | 766 | 
                                    
                                    20.4%
                                 | 
| 5 | 48-59 | 776 | 
                                    
                                    20.7%
                                 | 
| Sysmiss | 144 | 
                                    
                                    3.8%
                                 |