| Value |
Category |
| 1 |
ONCE A WEEK |
| 2 |
TWICE A MONTH |
| 3 |
ONCE A MONTH |
| 4 |
ONCE EVERY THREE MONTHS |
| 5 |
LESS THAN ONCE EVERY THREE MONTHS |
| 11 |
.S |
| 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.