| Value | Category | Cases | |
|---|---|---|---|
| 0 | no card | 110 |
11.1%
|
| 1 | yes, seen | 504 |
50.9%
|
| 2 | yes, not seen | 352 |
35.5%
|
| 3 | no longer has card | 25 |
2.5%
|
| Sysmiss | 4430 |