| Value |
Category |
| 1 |
Less than 2 years ago |
| 2 |
2-4 years ago |
| 3 |
5-9 years ago |
| 4 |
10-19 years ago |
| 5 |
20-29 years ago |
| 6 |
More than 30 years ago |
| 7 |
Don't know |
| Sysmiss |
|
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.