| Value |
Category |
| 0 |
|
| 1 |
Less then a week |
| 2 |
7 - 30 days ago |
| 3 |
More than a month but less than a year |
| 4 |
More than a year |
| 5 |
Never |
| 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.