| Value |
Category |
| 1 |
Up to 6 months |
| 2 |
6 months to 1 year |
| 3 |
1 year to 2 years |
| 4 |
More than 2 years |
| 8 |
Don’t know |
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.