| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 23 |
9.3%
|
| 1 | 4 |
1.6%
|
|
| 5 | 2 |
0.8%
|
|
| 10 | 10 |
4%
|
|
| 12 | 1 |
0.4%
|
|
| 15 | 4 |
1.6%
|
|
| 18 | 1 |
0.4%
|
|
| 20 | 7 |
2.8%
|
|
| 25 | 4 |
1.6%
|
|
| 26 | 1 |
0.4%
|
|
| 28 | 1 |
0.4%
|
|
| 30 | 7 |
2.8%
|
|
| 33 | 2 |
0.8%
|
|
| 35 | 1 |
0.4%
|
|
| 40 | 7 |
2.8%
|
|
| 45 | 1 |
0.4%
|
|
| 49 | 3 |
1.2%
|
|
| 50 | 61 |
24.6%
|
|
| 51 | 1 |
0.4%
|
|
| 60 | 9 |
3.6%
|
|
| 70 | 1 |
0.4%
|
|
| 76 | 1 |
0.4%
|
|
| 80 | 4 |
1.6%
|
|
| 90 | 1 |
0.4%
|
|
| 100 | 91 |
36.7%
|
|
| Sysmiss | 374 |