Value | Category |
---|---|
0 | Not applicable |
1 | Less than 3 months |
2 | 3 months - less than 6 months |
3 | 6 months - less than 9 months |
4 | 9 months - less than 1 year |
5 | 1 year - less than 3 years |
6 | 3 years - 5 years |
7 | More than 5 years |
8 | Do not know |
99 | Unspecified |