| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
4.5%
|
| 2 | 1 |
2.3%
|
|
| 3 | 1 |
2.3%
|
|
| 10 | 1 |
2.3%
|
|
| 18 | 1 |
2.3%
|
|
| 20 | 2 |
4.5%
|
|
| 25 | 1 |
2.3%
|
|
| 30 | 4 |
9.1%
|
|
| 33 | 1 |
2.3%
|
|
| 34 | 1 |
2.3%
|
|
| 35 | 1 |
2.3%
|
|
| 40 | 1 |
2.3%
|
|
| 50 | 6 |
13.6%
|
|
| 65 | 1 |
2.3%
|
|
| 80 | 1 |
2.3%
|
|
| 100 | 19 |
43.2%
|
|
| Sysmiss | 320 |