Value | Category |
---|---|
1 | Two years or less |
2 | More than two years, but less than five years |
3 | More than five years |
4 | Don’t know |
8 | Not applicable |
9 | Unspecified |
This site uses cookies to optimize functionality and give you the best possible experience. If you continue to navigate this website beyond this page, cookies will be placed on your browser. To learn more about cookies, click here.