| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t remember | 18 |
5%
|
| -88 | Other (specify) | 17 |
4.8%
|
| 1 | CM | 291 |
81.5%
|
| 2 | VRP | 31 |
8.7%
|
| Sysmiss | 1778 |