| Value |
Category |
| 1 |
Less than 1 year |
| 2 |
1-5 years back |
| 3 |
5-10 years back |
| 4 |
Over 10 years back |
| 5 |
Don't remember |
| 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.