| Value |
Category |
| 1 |
From last 3 months |
| 2 |
4-6 months |
| 3 |
7-12 months |
| 4 |
more than a year |
| 7 |
Don't know |
| 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.