| Value |
Category |
| 1 |
<6 months |
| 2 |
6 months - 1 year |
| 3 |
1 - 5 years |
| 4 |
5 - 10 years |
| 5 |
10+ years |
| 77 |
refuse |
| 88 |
don't know |
| 99 |
missing |
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.