| Value |
Category |
| 1 |
WEEKLY |
| 2 |
MONTHLY |
| 3 |
EVERY 3 MONTHS |
| 4 |
EVERY 6 MONTHS |
| 5 |
ONCE A YEAR |
| 6 |
OTHER |
| 98 |
DON'T KNOW |
| 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.