| Value |
Category |
| 1 |
More than once per year |
| 2 |
Once a year |
| 3 |
Less than once per year |
| 4 |
Only once or twice |
| 5 |
Never |
| 6 |
Not applicable/Don’t know |
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.