| Value |
Category |
| 0 |
|
| 1 |
zero |
| 2 |
once |
| 3 |
twice |
| 4 |
thrice |
| 5 |
four times |
| 6 |
five times |
| 7 |
more than five times |
| 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.