| Value |
Category |
| 1 |
never |
| 2 |
once or less than than once a month |
| 3 |
every other month |
| 4 |
every month |
| 5 |
every week |
| 6 |
everyday |
| 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.