Value |
Category |
-1 |
missing |
0 |
not applicable |
1 |
once |
2 |
more than once |
3 |
never |
8 |
can't choose |
9 |
decline to answer |
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.