| Value |
Category |
| 0 |
< 1 year |
| 1 |
1 to 2 years |
| 2 |
3 to 10 years |
| 3 |
11 to 20 years |
| 4 |
more than 20 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.