Value | Category |
---|---|
1 | 1 week - less than 1 month |
2 | 1 month - less than 2 months |
3 | 2 months - less than 3 months |
4 | 3 months - less than 4 months |
5 | 4 months - less than 5 months |
6 | 5 months - less than 6 months |
7 | 6 months - less than 1 year |
8 | 1 year - less than 2 years |
9 | 2 years - less than 3 years |
10 | 3 years or more |
11 | Don't know |
88 | Not applicable |
99 | Unspecified |