| Value |
Category |
Cases |
|
| 1 |
within past yr |
41 |
|
| 2 |
more than 1 yr ago |
13 |
|
| 3 |
never |
74 |
|
| 77 |
don't know |
8 |
|
| Sysmiss |
|
993 |
|
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.
