| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 34 |
23.4%
|
| 0 | 62 |
42.8%
|
|
| 3 | 1 |
0.7%
|
|
| 4 | 1 |
0.7%
|
|
| 10 | 5 |
3.4%
|
|
| 15 | 2 |
1.4%
|
|
| 20 | 4 |
2.8%
|
|
| 25 | 1 |
0.7%
|
|
| 30 | 6 |
4.1%
|
|
| 35 | 3 |
2.1%
|
|
| 40 | 4 |
2.8%
|
|
| 45 | 1 |
0.7%
|
|
| 50 | 2 |
1.4%
|
|
| 75 | 1 |
0.7%
|
|
| 90 | 1 |
0.7%
|
|
| 98 | 1 |
0.7%
|
|
| 100 | 16 |
11%
|