| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -7 | 3 |
2.7%
|
|
| 1 | 21 |
18.6%
|
|
| 2 | 89 |
78.8%
|
|
| Sysmiss | 1319 |