| Value |
Category |
| 1 |
don't know |
| 2 |
know but can't remember |
| 3 |
right answer |
| 4 |
wrong answer |
| 5 |
could not determine |
| 98 |
refused |
| 99 |
missing |
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.