| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
2.3%
|
| 0 | 59 |
22.6%
|
|
| 10 | 5 |
1.9%
|
|
| 15 | 3 |
1.1%
|
|
| 20 | 13 |
5%
|
|
| 23 | 1 |
0.4%
|
|
| 25 | 5 |
1.9%
|
|
| 30 | 8 |
3.1%
|
|
| 40 | 5 |
1.9%
|
|
| 49 | 1 |
0.4%
|
|
| 50 | 25 |
9.6%
|
|
| 60 | 15 |
5.7%
|
|
| 70 | 7 |
2.7%
|
|
| 75 | 6 |
2.3%
|
|
| 80 | 3 |
1.1%
|
|
| 85 | 2 |
0.8%
|
|
| 90 | 3 |
1.1%
|
|
| 100 | 94 |
36%
|
|
| Sysmiss | 468 |