| Value |
Category |
| -1 |
Not Applicable |
| 1 |
0-6 months |
| 2 |
6 months to a year |
| 3 |
1 to 2 years |
| 4 |
more than 2 years |
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.