| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 10 |
7.7%
|
| -8 | Refused | 0 |
0%
|
| 9 | 10 |
7.7%
|
|
| 10 | 26 |
20%
|
|
| 11 | 26 |
20%
|
|
| 12 | 39 |
30%
|
|
| 13 | 9 |
6.9%
|
|
| 14 | 4 |
3.1%
|
|
| 15 | 6 |
4.6%
|
|
| Sysmiss | 1865 |