| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 | 
                                    
                                    1.3%
                                 | 
| 0 | 28 | 
                                    
                                    4.6%
                                 | |
| 1 | 46 | 
                                    
                                    7.6%
                                 | |
| 2 | 69 | 
                                    
                                    11.4%
                                 | |
| 3 | 64 | 
                                    
                                    10.5%
                                 | |
| 4 | 55 | 
                                    
                                    9.1%
                                 | |
| 5 | 51 | 
                                    
                                    8.4%
                                 | |
| 6 | 30 | 
                                    
                                    4.9%
                                 | |
| 7 | 17 | 
                                    
                                    2.8%
                                 | |
| 8 | 17 | 
                                    
                                    2.8%
                                 | |
| 9 | 17 | 
                                    
                                    2.8%
                                 | |
| 10 | 30 | 
                                    
                                    4.9%
                                 | |
| 11 | 5 | 
                                    
                                    0.8%
                                 | |
| 12 | 7 | 
                                    
                                    1.2%
                                 | |
| 13 | 3 | 
                                    
                                    0.5%
                                 | |
| 14 | 5 | 
                                    
                                    0.8%
                                 | |
| 15 | 16 | 
                                    
                                    2.6%
                                 | |
| 17 | 2 | 
                                    
                                    0.3%
                                 | |
| 18 | 6 | 
                                    
                                    1%
                                 | |
| 19 | 1 | 
                                    
                                    0.2%
                                 | |
| 20 | 15 | 
                                    
                                    2.5%
                                 | |
| 21 | 2 | 
                                    
                                    0.3%
                                 | |
| 22 | 3 | 
                                    
                                    0.5%
                                 | |
| 23 | 2 | 
                                    
                                    0.3%
                                 | |
| 24 | 2 | 
                                    
                                    0.3%
                                 | |
| 25 | 10 | 
                                    
                                    1.6%
                                 | |
| 28 | 2 | 
                                    
                                    0.3%
                                 | |
| 30 | 10 | 
                                    
                                    1.6%
                                 | |
| 35 | 7 | 
                                    
                                    1.2%
                                 | |
| 37 | 1 | 
                                    
                                    0.2%
                                 | |
| 38 | 1 | 
                                    
                                    0.2%
                                 | |
| 39 | 1 | 
                                    
                                    0.2%
                                 | |
| 40 | 13 | 
                                    
                                    2.1%
                                 | |
| 42 | 1 | 
                                    
                                    0.2%
                                 | |
| 45 | 1 | 
                                    
                                    0.2%
                                 | |
| 46 | 1 | 
                                    
                                    0.2%
                                 | |
| 48 | 2 | 
                                    
                                    0.3%
                                 | |
| 50 | 10 | 
                                    
                                    1.6%
                                 | |
| 51 | 1 | 
                                    
                                    0.2%
                                 | |
| 55 | 1 | 
                                    
                                    0.2%
                                 | |
| 60 | 1 | 
                                    
                                    0.2%
                                 | |
| 62 | 1 | 
                                    
                                    0.2%
                                 | |
| 63 | 1 | 
                                    
                                    0.2%
                                 | |
| 65 | 3 | 
                                    
                                    0.5%
                                 | |
| 70 | 3 | 
                                    
                                    0.5%
                                 | |
| 75 | 2 | 
                                    
                                    0.3%
                                 | |
| 77 | 1 | 
                                    
                                    0.2%
                                 | |
| 79 | 1 | 
                                    
                                    0.2%
                                 | |
| 80 | 1 | 
                                    
                                    0.2%
                                 | |
| 90 | 6 | 
                                    
                                    1%
                                 | |
| 96 | 1 | 
                                    
                                    0.2%
                                 | |
| 100 | 4 | 
                                    
                                    0.7%
                                 | |
| 110 | 1 | 
                                    
                                    0.2%
                                 | |
| 117 | 1 | 
                                    
                                    0.2%
                                 | |
| 120 | 1 | 
                                    
                                    0.2%
                                 | |
| 145 | 2 | 
                                    
                                    0.3%
                                 | |
| 150 | 1 | 
                                    
                                    0.2%
                                 | |
| 170 | 3 | 
                                    
                                    0.5%
                                 | |
| 180 | 1 | 
                                    
                                    0.2%
                                 | |
| 200 | 2 | 
                                    
                                    0.3%
                                 | |
| 202 | 1 | 
                                    
                                    0.2%
                                 | |
| 250 | 1 | 
                                    
                                    0.2%
                                 | |
| 263 | 1 | 
                                    
                                    0.2%
                                 | |
| 300 | 1 | 
                                    
                                    0.2%
                                 | |
| 310 | 1 | 
                                    
                                    0.2%
                                 | |
| 800 | 1 | 
                                    
                                    0.2%
                                 | |
| 1800 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 417 |