| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2729 | 
                                    
                                    24.8%
                                 | |
| 1 | 135 | 
                                    
                                    1.2%
                                 | |
| 2 | 278 | 
                                    
                                    2.5%
                                 | |
| 3 | 358 | 
                                    
                                    3.3%
                                 | |
| 4 | 549 | 
                                    
                                    5%
                                 | |
| 5 | 539 | 
                                    
                                    4.9%
                                 | |
| 6 | 614 | 
                                    
                                    5.6%
                                 | |
| 7 | 929 | 
                                    
                                    8.4%
                                 | |
| 8 | 1040 | 
                                    
                                    9.4%
                                 | |
| 9 | 569 | 
                                    
                                    5.2%
                                 | |
| 10 | 1083 | 
                                    
                                    9.8%
                                 | |
| 11 | 180 | 
                                    
                                    1.6%
                                 | |
| 12 | 1035 | 
                                    
                                    9.4%
                                 | |
| 13 | 40 | 
                                    
                                    0.4%
                                 | |
| 14 | 54 | 
                                    
                                    0.5%
                                 | |
| 15 | 149 | 
                                    
                                    1.4%
                                 | |
| 16 | 105 | 
                                    
                                    1%
                                 | |
| 17 | 27 | 
                                    
                                    0.2%
                                 | |
| 18 | 25 | 
                                    
                                    0.2%
                                 | |
| 19 | 8 | 
                                    
                                    0.1%
                                 | |
| 20 | 3 | 
                                    
                                    0%
                                 | |
| 97 | inconsistent | 0 | 
                                    
                                    0%
                                 | 
| 98 | don't know | 564 | 
                                    
                                    5.1%
                                 | 
| Sysmiss | 3933 |