| Value |
Category |
| 1 |
Less than 5 years |
| 2 |
5-9 years |
| 3 |
10-14 years |
| 4 |
15-20 years |
| 5 |
more than 20 years |
| 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.