| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 38 |
25.2%
|
| -7 | Doesn't apply | 0 |
0%
|
| 0 | 30 |
19.9%
|
|
| 1 | 19 |
12.6%
|
|
| 2 | 22 |
14.6%
|
|
| 3 | 6 |
4%
|
|
| 4 | 6 |
4%
|
|
| 5 | 4 |
2.6%
|
|
| 8 | 4 |
2.6%
|
|
| 10 | 5 |
3.3%
|
|
| 15 | 2 |
1.3%
|
|
| 18 | 1 |
0.7%
|
|
| 20 | 2 |
1.3%
|
|
| 30 | 1 |
0.7%
|
|
| 50 | 4 |
2.6%
|
|
| 70 | 1 |
0.7%
|
|
| 75 | 1 |
0.7%
|
|
| 90 | 1 |
0.7%
|
|
| 100 | 4 |
2.6%
|