| Value |
Category |
| 1 |
everyday |
| 2 |
several days a week |
| 3 |
1 to 3 times a month |
| 4 |
less than once a month |
| 6 |
other |
| 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.