| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not weighed | 445 |
70.7%
|
| 1 | From card | 33 |
5.2%
|
| 2 | From recall | 145 |
23.1%
|
| 9 | Special answers | 6 |
1%
|
| Sysmiss | 29443 |