| Value |
Category |
| 1 |
Yes, every 15 days |
| 2 |
No, between 15 days and one month |
| 3 |
No, more than one month |
| 9 |
Missing |
| 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.