| Value | Category | Cases | |
|---|---|---|---|
| 0 | 22 |
88%
|
|
| 3 | 1 |
4%
|
|
| 4 | 1 |
4%
|
|
| 5 | 1 |
4%
|
|
| 77 | Don't know | 0 |
0%
|
| Sysmiss | 6629 |