| Value |
Category |
Cases |
|
| 1 |
1 year or less |
23 |
|
| 2 |
Between 1 and 2 years |
13 |
|
| 3 |
More than 2 years |
34 |
|
| 4 |
Never |
493 |
|
| 77 |
Don't know |
8 |
|
| Sysmiss |
|
4867 |
|
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.
