| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 15 |
5.8%
|
| 0 | 41 |
15.8%
|
|
| 1 | 1 |
0.4%
|
|
| 5 | 1 |
0.4%
|
|
| 10 | 1 |
0.4%
|
|
| 15 | 1 |
0.4%
|
|
| 20 | 7 |
2.7%
|
|
| 25 | 1 |
0.4%
|
|
| 30 | 3 |
1.2%
|
|
| 34 | 1 |
0.4%
|
|
| 35 | 1 |
0.4%
|
|
| 40 | 3 |
1.2%
|
|
| 50 | 17 |
6.6%
|
|
| 60 | 1 |
0.4%
|
|
| 67 | 1 |
0.4%
|
|
| 70 | 7 |
2.7%
|
|
| 80 | 6 |
2.3%
|
|
| 81 | 1 |
0.4%
|
|
| 90 | 3 |
1.2%
|
|
| 95 | 1 |
0.4%
|
|
| 100 | 146 |
56.4%
|
|
| Sysmiss | 99 |