| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 2 |
1.6%
|
| 1 | 61 |
49.6%
|
|
| 2 | 23 |
18.7%
|
|
| 3 | 37 |
30.1%
|
|
| Sysmiss | 1309 |