| Value | Category | Cases | |
|---|---|---|---|
| 0 | no card | 620 |
7.9%
|
| 1 | yes, seen | 5073 |
64.9%
|
| 2 | yes, not seen | 1850 |
23.7%
|
| 3 | no longer has card | 268 |
3.4%
|
| 9 | 9 |
0.1%
|
|
| 11 | .Z | 412 |