| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
7.1%
|
| -8 | Refused | 0 |
0%
|
| 1 | 1 |
7.1%
|
|
| 5 | 2 |
14.3%
|
|
| 10 | 3 |
21.4%
|
|
| 15 | 2 |
14.3%
|
|
| 20 | 4 |
28.6%
|
|
| 50 | 1 |
7.1%
|
|
| Sysmiss | 1072 |