Value |
Category |
1 |
No, I do not know |
2 |
Every month |
3 |
Every 2 months |
4 |
Every 3 months |
5 |
No-one told me |
97 |
Other (specify) |
Sysmiss |
|
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.