| Value |
Category |
| 1 |
less than 1 month |
| 2 |
1 month to < 6 months |
| 3 |
6 months to < 12 months |
| 4 |
1 year or more |
| Missing value |
|
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.
