| Value |
Category |
Cases |
|
| 1 |
1 year or less |
620 |
|
| 2 |
Between 1 and 2 years |
176 |
|
| 3 |
More than 2 years |
133 |
|
| 4 |
Never |
0 |
|
| 77 |
Don't know |
113 |
|
| Sysmiss |
|
4971 |
|
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.
