| Value |
Category |
| -3 |
Missing |
| 1 |
Daily |
| 2 |
Every 2nd day |
| 3 |
Twice a week |
| 4 |
Once a week |
| 5 |
Less than once a week |
| 6 |
Less than once a month |
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.