Value | Category |
---|---|
1 | Less than one week |
2 | One week or more but less than one month |
3 | One month or more but less than three months |
4 | Three months or more but less than six months |
5 | Six months or more but less than one year |
6 | One year or more but less than two years |
7 | Two years or longer |
8 | No definite length |
Sysmiss |