Value |
Category |
1 |
Each day |
2 |
Each week |
3 |
Each month |
4 |
Every 4 month |
5 |
Every 6 month |
6 |
Every year |
7 |
Irregular |
88 |
Other way |
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.