| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 41 |
6.9%
|
| 8 | 1 |
0.2%
|
|
| 10 | 1 |
0.2%
|
|
| 29 | 1 |
0.2%
|
|
| 30 | 1 |
0.2%
|
|
| 40 | 7 |
1.2%
|
|
| 50 | 1 |
0.2%
|
|
| 60 | 8 |
1.3%
|
|
| 65 | 5 |
0.8%
|
|
| 70 | 15 |
2.5%
|
|
| 75 | 4 |
0.7%
|
|
| 80 | 17 |
2.8%
|
|
| 85 | 3 |
0.5%
|
|
| 90 | 12 |
2%
|
|
| 95 | 3 |
0.5%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 477 |
79.8%
|