| Value |
Category |
| -9 |
-9 |
| -8 |
-8 |
| 1 |
less than 1 year ago |
| 2 |
about 1 year ago |
| 3 |
2 years ago |
| 4 |
3-5 years ago |
| 5 |
more than 5 years ago |
| 6 |
never |
| 11 |
.B |
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.