| Value |
Category |
| 0 |
Never |
| 1 |
Rearly (once or twice in past 7 days) |
| 2 |
Sometimes (3 to 5 in past 7 days) |
| 3 |
Usually ( 6 to 7 in past 7 days) |
| 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.