| Value |
Category |
| 1 |
Há menos de 12 |
| 2 |
Há menos de 12-23 meses |
| 3 |
Há 2 ou mais anos |
| 9 |
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.