| Value |
Category |
| 1 |
This yr or last (up to 12 months) |
| 2 |
2 years |
| 3 |
3 |
| 4 |
4-6 |
| 5 |
7-10 |
| 6 |
11-20 |
| 7 |
21+ years |
| 9 |
NIU (not in universe) |
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.