| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 33 | 
                                    
                                    5.5%
                                 | 
| 0 | 29 | 
                                    
                                    4.9%
                                 | |
| 1 | 3 | 
                                    
                                    0.5%
                                 | |
| 2 | 3 | 
                                    
                                    0.5%
                                 | |
| 3 | 2 | 
                                    
                                    0.3%
                                 | |
| 5 | 21 | 
                                    
                                    3.5%
                                 | |
| 9 | 1 | 
                                    
                                    0.2%
                                 | |
| 10 | 33 | 
                                    
                                    5.5%
                                 | |
| 12 | 1 | 
                                    
                                    0.2%
                                 | |
| 14 | 2 | 
                                    
                                    0.3%
                                 | |
| 15 | 8 | 
                                    
                                    1.3%
                                 | |
| 16 | 1 | 
                                    
                                    0.2%
                                 | |
| 20 | 48 | 
                                    
                                    8.1%
                                 | |
| 25 | 5 | 
                                    
                                    0.8%
                                 | |
| 28 | 2 | 
                                    
                                    0.3%
                                 | |
| 30 | 36 | 
                                    
                                    6%
                                 | |
| 32 | 1 | 
                                    
                                    0.2%
                                 | |
| 35 | 3 | 
                                    
                                    0.5%
                                 | |
| 40 | 34 | 
                                    
                                    5.7%
                                 | |
| 42 | 1 | 
                                    
                                    0.2%
                                 | |
| 45 | 1 | 
                                    
                                    0.2%
                                 | |
| 46 | 1 | 
                                    
                                    0.2%
                                 | |
| 47 | 1 | 
                                    
                                    0.2%
                                 | |
| 48 | 1 | 
                                    
                                    0.2%
                                 | |
| 49 | 1 | 
                                    
                                    0.2%
                                 | |
| 50 | 45 | 
                                    
                                    7.6%
                                 | |
| 55 | 1 | 
                                    
                                    0.2%
                                 | |
| 58 | 1 | 
                                    
                                    0.2%
                                 | |
| 60 | 21 | 
                                    
                                    3.5%
                                 | |
| 65 | 5 | 
                                    
                                    0.8%
                                 | |
| 67 | 2 | 
                                    
                                    0.3%
                                 | |
| 68 | 2 | 
                                    
                                    0.3%
                                 | |
| 70 | 32 | 
                                    
                                    5.4%
                                 | |
| 71 | 3 | 
                                    
                                    0.5%
                                 | |
| 73 | 1 | 
                                    
                                    0.2%
                                 | |
| 74 | 1 | 
                                    
                                    0.2%
                                 | |
| 75 | 3 | 
                                    
                                    0.5%
                                 | |
| 77 | 1 | 
                                    
                                    0.2%
                                 | |
| 78 | 1 | 
                                    
                                    0.2%
                                 | |
| 80 | 34 | 
                                    
                                    5.7%
                                 | |
| 85 | 7 | 
                                    
                                    1.2%
                                 | |
| 90 | 37 | 
                                    
                                    6.2%
                                 | |
| 93 | 1 | 
                                    
                                    0.2%
                                 | |
| 95 | 11 | 
                                    
                                    1.8%
                                 | |
| 96 | 1 | 
                                    
                                    0.2%
                                 | |
| 97 | 1 | 
                                    
                                    0.2%
                                 | |
| 98 | 3 | 
                                    
                                    0.5%
                                 | |
| 99 | 8 | 
                                    
                                    1.3%
                                 | |
| 100 | 102 | 
                                    
                                    17.1%
                                 | |
| Sysmiss | 359 |