| value | category | cases | |
|---|---|---|---|
| 0 | Not weighed | 6583 |
61.8%
|
| 1 | From card | 2466 |
23.2%
|
| 2 | From recall | 619 |
5.8%
|
| 9 | Special answers | 977 |
9.2%
|
| Sysmiss | 30875 |