| Value |
Category |
| 1 |
More than once per day |
| 2 |
Once a day |
| 3 |
Every two or three days |
| 4 |
Weekly |
| 5 |
Every other week |
| 6 |
Monthly |
| 96 |
Other |
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.