| Value |
Category |
| 1 |
Daily or once or more per week |
| 2 |
Once or twice per month |
| 3 |
Rearly |
| 4 |
Never |
| 5 |
|
| 9 |
|
| 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.