Value |
Category |
0 |
never |
1 |
once a year |
2 |
once a term |
3 |
once a month |
4 |
once a week |
88 |
don't know/no response |
99 |
refuse |
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.