| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 | 
                                    
                                    0%
                                 | 
| -88 | Missing | 0 | 
                                    
                                    0%
                                 | 
| -77 | NA | 2 | 
                                    
                                    0.2%
                                 | 
| 1 | 27 | 
                                    
                                    2.3%
                                 | |
| 2 | 66 | 
                                    
                                    5.7%
                                 | |
| 3 | 105 | 
                                    
                                    9.1%
                                 | |
| 4 | 180 | 
                                    
                                    15.6%
                                 | |
| 5 | 318 | 
                                    
                                    27.6%
                                 | |
| 6 | 211 | 
                                    
                                    18.3%
                                 | |
| 7 | 125 | 
                                    
                                    10.8%
                                 | |
| 8 | 87 | 
                                    
                                    7.5%
                                 | |
| 9 | 16 | 
                                    
                                    1.4%
                                 | |
| 10 | 17 | 
                                    
                                    1.5%
                                 | |
| Sysmiss | 5 |