| Value | Category | Cases | |
|---|---|---|---|
| -9 | do not know | 1 |
2.6%
|
| 0.18 | 1 |
2.6%
|
|
| 14 | 2 |
5.3%
|
|
| 17 | 8 |
21.1%
|
|
| 18 | 20 |
52.6%
|
|
| 19 | 4 |
10.5%
|
|
| 20 | 1 |
2.6%
|
|
| 24 | 1 |
2.6%
|
|
| Sysmiss | 110 |