Value |
Category |
1 |
Less than 1 year |
2 |
Two years |
3 |
1 to 3 years |
4 |
3 to 5 years |
5 |
More than 5 years |
6 |
Sterile |
7 |
DK |
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.