| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 2 |
16.7%
|
| -1 | refuse | 0 |
0%
|
| 3 | 1 |
8.3%
|
|
| 6 | 1 |
8.3%
|
|
| 10 | 1 |
8.3%
|
|
| 12 | 1 |
8.3%
|
|
| 14 | 1 |
8.3%
|
|
| 16 | 1 |
8.3%
|
|
| 18 | 1 |
8.3%
|
|
| 20 | 1 |
8.3%
|
|
| 30 | 2 |
16.7%
|
|
| Sysmiss | 1037 |