| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 42 | 
                                    
                                    7%
                                 | 
| 0 | 32 | 
                                    
                                    5.3%
                                 | |
| 1 | 1 | 
                                    
                                    0.2%
                                 | |
| 5 | 13 | 
                                    
                                    2.2%
                                 | |
| 10 | 38 | 
                                    
                                    6.3%
                                 | |
| 15 | 6 | 
                                    
                                    1%
                                 | |
| 20 | 35 | 
                                    
                                    5.8%
                                 | |
| 25 | 15 | 
                                    
                                    2.5%
                                 | |
| 30 | 31 | 
                                    
                                    5.2%
                                 | |
| 33 | 4 | 
                                    
                                    0.7%
                                 | |
| 35 | 1 | 
                                    
                                    0.2%
                                 | |
| 40 | 16 | 
                                    
                                    2.7%
                                 | |
| 45 | 1 | 
                                    
                                    0.2%
                                 | |
| 50 | 43 | 
                                    
                                    7.2%
                                 | |
| 55 | 2 | 
                                    
                                    0.3%
                                 | |
| 57 | 1 | 
                                    
                                    0.2%
                                 | |
| 58 | 1 | 
                                    
                                    0.2%
                                 | |
| 60 | 21 | 
                                    
                                    3.5%
                                 | |
| 65 | 7 | 
                                    
                                    1.2%
                                 | |
| 70 | 33 | 
                                    
                                    5.5%
                                 | |
| 75 | 10 | 
                                    
                                    1.7%
                                 | |
| 76 | 1 | 
                                    
                                    0.2%
                                 | |
| 80 | 47 | 
                                    
                                    7.8%
                                 | |
| 85 | 9 | 
                                    
                                    1.5%
                                 | |
| 88 | 1 | 
                                    
                                    0.2%
                                 | |
| 90 | 28 | 
                                    
                                    4.7%
                                 | |
| 91 | 1 | 
                                    
                                    0.2%
                                 | |
| 92 | 1 | 
                                    
                                    0.2%
                                 | |
| 93 | 2 | 
                                    
                                    0.3%
                                 | |
| 95 | 14 | 
                                    
                                    2.3%
                                 | |
| 96 | 1 | 
                                    
                                    0.2%
                                 | |
| 97 | 1 | 
                                    
                                    0.2%
                                 | |
| 98 | 7 | 
                                    
                                    1.2%
                                 | |
| 99 | 3 | 
                                    
                                    0.5%
                                 | |
| 100 | 131 | 
                                    
                                    21.8%
                                 |