| Value |
Category |
| 1 |
Less than 1 month |
| 2 |
1 to 5 months |
| 3 |
6 to 11 months |
| 4 |
1 to 2 years |
| 5 |
3 to 4years |
| 6 |
5 to 9years |
| 7 |
10 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.