| Value |
Category |
| -1 |
Missing |
| 0 |
No |
| 1 |
Yes, once |
| 2 |
Yes, twice |
| 3 |
Yes, three or more times |
| 9 |
Don't Know |
| 998 |
Refused |
| 997 |
Not asked |
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.