Value | Category |
---|---|
1 | Refuse to answer |
2 | Cannot remember when I bought the line |
3 | Less than a month |
4 | 2-6 months |
5 | 6-12 months |
6 | 1-5 years |
7 | More than 5 years |
8 | Don't know |
9 | Refused to answer |
10 | Outlier set to missing |
11 | Inconsistency set to missing |
12 | Not applicable |