| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 70 |
46.7%
|
| 0 | 7 |
4.7%
|
|
| 2 | 1 |
0.7%
|
|
| 5 | 1 |
0.7%
|
|
| 10 | 3 |
2%
|
|
| 15 | 2 |
1.3%
|
|
| 18 | 1 |
0.7%
|
|
| 20 | 10 |
6.7%
|
|
| 22 | 1 |
0.7%
|
|
| 25 | 10 |
6.7%
|
|
| 28 | 1 |
0.7%
|
|
| 30 | 8 |
5.3%
|
|
| 31 | 1 |
0.7%
|
|
| 35 | 3 |
2%
|
|
| 40 | 6 |
4%
|
|
| 47 | 1 |
0.7%
|
|
| 50 | 6 |
4%
|
|
| 60 | 7 |
4.7%
|
|
| 65 | 1 |
0.7%
|
|
| 75 | 4 |
2.7%
|
|
| 80 | 2 |
1.3%
|
|
| 90 | 2 |
1.3%
|
|
| 95 | 1 |
0.7%
|
|
| 100 | 1 |
0.7%
|
|
| Sysmiss | 203 |