| Value |
Category |
| 1 |
TWICE OR MORE PER MONTH |
| 2 |
MONTHLY |
| 3 |
QUARTERLY |
| 4 |
SEMI-ANNUALLY |
| 5 |
ANNUALLY |
| 6 |
SPORADICALLY AS NEEDED |
| 7 |
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.