| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no card | 5 |
25%
|
| 1 | yes, seen | 4 |
20%
|
| 2 | yes, not seen | 1 |
5%
|
| 3 | no longer has card | 10 |
50%
|
| Sysmiss | 15694 |