Value |
Category |
1 |
Negative |
2 |
0% |
3 |
1-10% |
4 |
11-20% |
5 |
21-30% |
6 |
31-40% |
7 |
More than 40% |
9 |
DK-NA |
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.