| Value |
Category |
| 1 |
once a year |
| 2 |
once quarterly |
| 3 |
once each other month |
| 4 |
once monthly |
| 5 |
once weekly |
| 6 |
more than once a week |
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.