| Value |
Category |
| 0 |
|
| 1 |
Less than 1 month |
| 2 |
From 1 to 3 months |
| 3 |
3 to 6 months |
| 4 |
From 6 to 12 months |
| 5 |
A year 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.