| Value |
Category |
| 1 |
Every month |
| 2 |
Every six months |
| 3 |
Has made it only once |
| 4 |
Daily |
| 5 |
Weekly |
| 6 |
Other |
| 7 |
Every other month |
| 8 |
Every three months |
| 9 |
annually |
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.