| Value |
Category |
| -999 |
Don't know |
| -888 |
Refuse to answer |
| 1 |
Less than 6 months |
| 2 |
6 to 12 months |
| 3 |
More than 12 months |
| 4 |
More than 2 years |
| 5 |
Indefinitely |
| 11 |
.D |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.