| Value |
Category |
| 1 |
Less than 1 month |
| 2 |
1-2 month |
| 3 |
3-4 month |
| 4 |
5 month or more |
| 5 |
More than 1 year |
| 6 |
|
| 8 |
Refusal |
| 9 |
Don’t known |
| Sysmiss |
|
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.