| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 | 
                                    
                                    2.2%
                                 | 
| 0 | 155 | 
                                    
                                    37.2%
                                 | |
| 1 | 12 | 
                                    
                                    2.9%
                                 | |
| 2 | 19 | 
                                    
                                    4.6%
                                 | |
| 3 | 12 | 
                                    
                                    2.9%
                                 | |
| 4 | 4 | 
                                    
                                    1%
                                 | |
| 5 | 25 | 
                                    
                                    6%
                                 | |
| 6 | 8 | 
                                    
                                    1.9%
                                 | |
| 7 | 5 | 
                                    
                                    1.2%
                                 | |
| 8 | 5 | 
                                    
                                    1.2%
                                 | |
| 9 | 2 | 
                                    
                                    0.5%
                                 | |
| 10 | 19 | 
                                    
                                    4.6%
                                 | |
| 12 | 1 | 
                                    
                                    0.2%
                                 | |
| 13 | 1 | 
                                    
                                    0.2%
                                 | |
| 14 | 2 | 
                                    
                                    0.5%
                                 | |
| 15 | 9 | 
                                    
                                    2.2%
                                 | |
| 16 | 1 | 
                                    
                                    0.2%
                                 | |
| 17 | 3 | 
                                    
                                    0.7%
                                 | |
| 18 | 1 | 
                                    
                                    0.2%
                                 | |
| 20 | 11 | 
                                    
                                    2.6%
                                 | |
| 24 | 1 | 
                                    
                                    0.2%
                                 | |
| 25 | 1 | 
                                    
                                    0.2%
                                 | |
| 26 | 1 | 
                                    
                                    0.2%
                                 | |
| 27 | 3 | 
                                    
                                    0.7%
                                 | |
| 29 | 1 | 
                                    
                                    0.2%
                                 | |
| 30 | 14 | 
                                    
                                    3.4%
                                 | |
| 31 | 1 | 
                                    
                                    0.2%
                                 | |
| 34 | 1 | 
                                    
                                    0.2%
                                 | |
| 35 | 3 | 
                                    
                                    0.7%
                                 | |
| 36 | 2 | 
                                    
                                    0.5%
                                 | |
| 37 | 1 | 
                                    
                                    0.2%
                                 | |
| 40 | 6 | 
                                    
                                    1.4%
                                 | |
| 44 | 2 | 
                                    
                                    0.5%
                                 | |
| 45 | 5 | 
                                    
                                    1.2%
                                 | |
| 47 | 2 | 
                                    
                                    0.5%
                                 | |
| 48 | 1 | 
                                    
                                    0.2%
                                 | |
| 50 | 17 | 
                                    
                                    4.1%
                                 | |
| 55 | 2 | 
                                    
                                    0.5%
                                 | |
| 60 | 7 | 
                                    
                                    1.7%
                                 | |
| 65 | 3 | 
                                    
                                    0.7%
                                 | |
| 68 | 1 | 
                                    
                                    0.2%
                                 | |
| 70 | 6 | 
                                    
                                    1.4%
                                 | |
| 80 | 3 | 
                                    
                                    0.7%
                                 | |
| 84 | 2 | 
                                    
                                    0.5%
                                 | |
| 89 | 1 | 
                                    
                                    0.2%
                                 | |
| 90 | 1 | 
                                    
                                    0.2%
                                 | |
| 95 | 1 | 
                                    
                                    0.2%
                                 | |
| 98 | 1 | 
                                    
                                    0.2%
                                 | |
| 100 | 4 | 
                                    
                                    1%
                                 | |
| 105 | 1 | 
                                    
                                    0.2%
                                 | |
| 120 | 1 | 
                                    
                                    0.2%
                                 | |
| 146 | 1 | 
                                    
                                    0.2%
                                 | |
| 150 | 6 | 
                                    
                                    1.4%
                                 | |
| 159 | 1 | 
                                    
                                    0.2%
                                 | |
| 180 | 1 | 
                                    
                                    0.2%
                                 | |
| 200 | 1 | 
                                    
                                    0.2%
                                 | |
| 212 | 1 | 
                                    
                                    0.2%
                                 | |
| 320 | 1 | 
                                    
                                    0.2%
                                 | |
| 360 | 1 | 
                                    
                                    0.2%
                                 | |
| 450 | 2 | 
                                    
                                    0.5%
                                 | |
| 500 | 1 | 
                                    
                                    0.2%
                                 | |
| 800 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 607 |