Value | Category |
---|---|
1 | Less than 1 week |
2 | 1 week or more but less than 1 month |
3 | 1 month or more but less than 3 months |
4 | 3 months or more but less than 6 months |
5 | 6 months or more but less than 1 year |
6 | 1 year or more |
8 | No definite length |
9 | Not applicable |