| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
1.4%
|
| 0 | 5 |
1.4%
|
|
| 10 | 2 |
0.5%
|
|
| 13 | 1 |
0.3%
|
|
| 20 | 7 |
1.9%
|
|
| 30 | 1 |
0.3%
|
|
| 40 | 4 |
1.1%
|
|
| 50 | 23 |
6.3%
|
|
| 60 | 11 |
3%
|
|
| 70 | 19 |
5.2%
|
|
| 72 | 1 |
0.3%
|
|
| 75 | 1 |
0.3%
|
|
| 80 | 10 |
2.7%
|
|
| 85 | 1 |
0.3%
|
|
| 86 | 1 |
0.3%
|
|
| 87 | 1 |
0.3%
|
|
| 90 | 8 |
2.2%
|
|
| 99 | 2 |
0.5%
|
|
| 100 | 261 |
71.7%
|