| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 42 | 
                                    
                                    11.5%
                                 | 
| 0 | 44 | 
                                    
                                    12.1%
                                 | |
| 1 | 19 | 
                                    
                                    5.2%
                                 | |
| 2 | 22 | 
                                    
                                    6%
                                 | |
| 3 | 28 | 
                                    
                                    7.7%
                                 | |
| 4 | 13 | 
                                    
                                    3.6%
                                 | |
| 5 | 22 | 
                                    
                                    6%
                                 | |
| 6 | 13 | 
                                    
                                    3.6%
                                 | |
| 7 | 8 | 
                                    
                                    2.2%
                                 | |
| 8 | 8 | 
                                    
                                    2.2%
                                 | |
| 9 | 4 | 
                                    
                                    1.1%
                                 | |
| 10 | 8 | 
                                    
                                    2.2%
                                 | |
| 11 | 5 | 
                                    
                                    1.4%
                                 | |
| 12 | 6 | 
                                    
                                    1.6%
                                 | |
| 13 | 4 | 
                                    
                                    1.1%
                                 | |
| 14 | 3 | 
                                    
                                    0.8%
                                 | |
| 15 | 5 | 
                                    
                                    1.4%
                                 | |
| 17 | 4 | 
                                    
                                    1.1%
                                 | |
| 18 | 3 | 
                                    
                                    0.8%
                                 | |
| 20 | 6 | 
                                    
                                    1.6%
                                 | |
| 21 | 1 | 
                                    
                                    0.3%
                                 | |
| 22 | 5 | 
                                    
                                    1.4%
                                 | |
| 23 | 3 | 
                                    
                                    0.8%
                                 | |
| 24 | 1 | 
                                    
                                    0.3%
                                 | |
| 25 | 5 | 
                                    
                                    1.4%
                                 | |
| 26 | 2 | 
                                    
                                    0.5%
                                 | |
| 27 | 1 | 
                                    
                                    0.3%
                                 | |
| 28 | 1 | 
                                    
                                    0.3%
                                 | |
| 29 | 1 | 
                                    
                                    0.3%
                                 | |
| 30 | 7 | 
                                    
                                    1.9%
                                 | |
| 31 | 1 | 
                                    
                                    0.3%
                                 | |
| 34 | 1 | 
                                    
                                    0.3%
                                 | |
| 35 | 4 | 
                                    
                                    1.1%
                                 | |
| 37 | 1 | 
                                    
                                    0.3%
                                 | |
| 40 | 4 | 
                                    
                                    1.1%
                                 | |
| 45 | 1 | 
                                    
                                    0.3%
                                 | |
| 46 | 1 | 
                                    
                                    0.3%
                                 | |
| 50 | 5 | 
                                    
                                    1.4%
                                 | |
| 52 | 1 | 
                                    
                                    0.3%
                                 | |
| 53 | 1 | 
                                    
                                    0.3%
                                 | |
| 54 | 1 | 
                                    
                                    0.3%
                                 | |
| 55 | 1 | 
                                    
                                    0.3%
                                 | |
| 60 | 3 | 
                                    
                                    0.8%
                                 | |
| 63 | 1 | 
                                    
                                    0.3%
                                 | |
| 65 | 1 | 
                                    
                                    0.3%
                                 | |
| 67 | 1 | 
                                    
                                    0.3%
                                 | |
| 70 | 2 | 
                                    
                                    0.5%
                                 | |
| 74 | 1 | 
                                    
                                    0.3%
                                 | |
| 80 | 2 | 
                                    
                                    0.5%
                                 | |
| 90 | 2 | 
                                    
                                    0.5%
                                 | |
| 91 | 1 | 
                                    
                                    0.3%
                                 | |
| 100 | 1 | 
                                    
                                    0.3%
                                 | |
| 107 | 1 | 
                                    
                                    0.3%
                                 | |
| 113 | 1 | 
                                    
                                    0.3%
                                 | |
| 134 | 1 | 
                                    
                                    0.3%
                                 | |
| 135 | 1 | 
                                    
                                    0.3%
                                 | |
| 136 | 1 | 
                                    
                                    0.3%
                                 | |
| 140 | 3 | 
                                    
                                    0.8%
                                 | |
| 141 | 1 | 
                                    
                                    0.3%
                                 | |
| 150 | 1 | 
                                    
                                    0.3%
                                 | |
| 155 | 1 | 
                                    
                                    0.3%
                                 | |
| 168 | 1 | 
                                    
                                    0.3%
                                 | |
| 170 | 1 | 
                                    
                                    0.3%
                                 | |
| 205 | 1 | 
                                    
                                    0.3%
                                 | |
| 230 | 2 | 
                                    
                                    0.5%
                                 | |
| 256 | 1 | 
                                    
                                    0.3%
                                 | |
| 260 | 1 | 
                                    
                                    0.3%
                                 | |
| 270 | 1 | 
                                    
                                    0.3%
                                 | |
| 275 | 1 | 
                                    
                                    0.3%
                                 | |
| 300 | 1 | 
                                    
                                    0.3%
                                 | |
| 325 | 1 | 
                                    
                                    0.3%
                                 | |
| 340 | 1 | 
                                    
                                    0.3%
                                 | |
| 353 | 1 | 
                                    
                                    0.3%
                                 | |
| 371 | 1 | 
                                    
                                    0.3%
                                 | |
| 379 | 1 | 
                                    
                                    0.3%
                                 | |
| 395 | 1 | 
                                    
                                    0.3%
                                 | |
| 409 | 1 | 
                                    
                                    0.3%
                                 | |
| 490 | 1 | 
                                    
                                    0.3%
                                 | |
| 525 | 1 | 
                                    
                                    0.3%
                                 | |
| 574 | 1 | 
                                    
                                    0.3%
                                 | |
| 600 | 1 | 
                                    
                                    0.3%
                                 | |
| 1170 | 1 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 591 |