| Value |
Category |
| 1 |
Less than 1 wk |
| 2 |
One week |
| 3 |
2 - 3 weeks |
| 4 |
1 - 3 months |
| 5 |
4 - 6 months |
| 6 |
7 - 12 months |
| 7 |
More than 1 year |
| 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.