| Value |
Category |
| 0 |
No card |
| 1 |
Yes, seen |
| 2 |
Yes, not seen |
| 3 |
No longer has card |
| 11 |
.C |
| 2147483624 |
Missing |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.