Value |
Category |
-99 |
Don't know |
-98 |
Refuse to answer |
0 |
Only once or seldom |
1 |
Day |
2 |
Week |
3 |
Every two weeks |
4 |
Month |
5 |
Year |
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.