| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 4 |
0.3%
|
| -7 | DON'T KNOW | 39 |
2.5%
|
| 1 | MONTHS | 962 |
62.1%
|
| 2 | WEEKS | 357 |
23%
|
| 3 | DAYS | 152 |
9.8%
|
| 4 | LESS THAN 1 DAY (24 HOURS) | 36 |
2.3%
|
| Sysmiss | 16916 |