| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.8%
|
| 0 | 80 |
62%
|
|
| 3 | 1 |
0.8%
|
|
| 5 | 2 |
1.6%
|
|
| 10 | 6 |
4.7%
|
|
| 15 | 1 |
0.8%
|
|
| 20 | 10 |
7.8%
|
|
| 25 | 1 |
0.8%
|
|
| 30 | 5 |
3.9%
|
|
| 40 | 2 |
1.6%
|
|
| 50 | 5 |
3.9%
|
|
| 55 | 1 |
0.8%
|
|
| 65 | 2 |
1.6%
|
|
| 73 | 1 |
0.8%
|
|
| 80 | 2 |
1.6%
|
|
| 90 | 1 |
0.8%
|
|
| 100 | 8 |
6.2%
|
|
| Sysmiss | 300 |