| Value | Category | Cases | |
|---|---|---|---|
| 0 | not weighed | 615 |
37.7%
|
| 1 | from card | 237 |
14.5%
|
| 2 | from recall | 755 |
46.3%
|
| 8 | dk | 4 |
0.2%
|
| 9 | special answers | 21 |
1.3%
|
| 11 | .Z | 17122 |