Value |
Category |
-1 |
Missing |
|
Never |
1 |
Only once |
2 |
A few times |
3 |
Often |
9 |
Don't know |
997 |
Not asked |
998 |
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.