Value | Category |
---|---|
01 | Less than 1 month |
02 | From 1 to less than 4 months |
03 | From 4 month to less than 7 months |
04 | From 7 months to less than 1 year |
05 | From 1 to less than 2 years |
06 | From 2 years to less than 3 years |
07 | From 3 or more years |
98 | Do not know |
99 | NIU (not in universe) |