| Value |
Category |
| 1 |
yes, always or almost always |
| 2 |
yes, sometimes |
| 3 |
no, never or almost never |
| 4 |
|
| 8 |
not applicable |
| 9 |
don't know |
| 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.