| Value | Category | Cases | |
|---|---|---|---|
| 0 | 9 |
42.9%
|
|
| 1 | 6 |
28.6%
|
|
| 2 | 2 |
9.5%
|
|
| 5 | 1 |
4.8%
|
|
| 50 | 1 |
4.8%
|
|
| 77 | Don't know | 2 |
9.5%
|
| Sysmiss | 2027 |