| Value |
Category |
| 1 |
every day |
| 2 |
almost everyday |
| 3 |
some days |
| 4 |
not at all in last 30 days |
| 9 |
refused |
| 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.
