| Value |
Category |
| -9 |
REFUSED |
| -7 |
DON'T KNOW |
| 1 |
LESS THAN 1 MONTH |
| 2 |
1 TO 3 MONTHS |
| 3 |
4 TO 11 MONTHS |
| 4 |
1 TO 2 YEARS |
| 5 |
MORE THAN 2 YEARS |
| 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.