Value |
Category |
1 |
one month or less |
2 |
2 months |
3 |
3 months |
4 |
4 months |
5 |
5 months |
6 |
6 months |
7 |
7 months and 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.