| Value |
Category |
| -999 |
missing |
| -777 |
not applicable |
| -666 |
don't know |
| 0 |
|
| 1 |
|
| 2 |
|
| 3 |
|
| 77 |
Not Applicable |
| 88 |
Don't Know |
| 99 |
Missing |
| 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.