| Value |
Category |
| -99 |
Dont know |
| -95 |
|
| 1 |
Last 1-6 months |
| 2 |
7-12 months |
| 3 |
1-2 years |
| 4 |
2 years or more |
| 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.