| Value |
Category |
| -3 |
Missing |
| -2 |
Do not know |
| -1 |
Refused |
| 1 |
completed |
| 2 |
incomplete |
| 3 |
terminated |
| 4 |
1 |
| 5 |
2 |
| 6 |
3 |
| 99 |
Other |
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.