| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
6.1%
|
| 1 | 2 |
4.1%
|
|
| 2 | 1 |
2%
|
|
| 5 | 4 |
8.2%
|
|
| 6 | 1 |
2%
|
|
| 8 | 1 |
2%
|
|
| 10 | 3 |
6.1%
|
|
| 20 | 8 |
16.3%
|
|
| 25 | 5 |
10.2%
|
|
| 30 | 7 |
14.3%
|
|
| 35 | 2 |
4.1%
|
|
| 40 | 5 |
10.2%
|
|
| 50 | 3 |
6.1%
|
|
| 65 | 1 |
2%
|
|
| 70 | 2 |
4.1%
|
|
| 80 | 1 |
2%
|
|
| Sysmiss | 100 |