| Value |
Category |
| 1 |
Once |
| 2 |
Twice |
| 3 |
Three times |
| 4 |
Four times |
| 5 |
Five times |
| 6 |
More than 5 times |
| 9 |
|
| 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.