| Value |
Category |
| 0 |
none |
| 1 |
to 1 year |
| 2 |
to 2 years |
| 3 |
to 5 years |
| 4 |
to 10 years |
| 5 |
to 15 years |
| 6 |
to 20 years |
| 7 |
to 30 years |
| 8 |
> 30 years |
| 9 |
not ascertained |
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.