| Value | Category | Cases | |
|---|---|---|---|
| 1 | LESS THAN 12 MONTHS AGO | 11 |
27.5%
|
| 2 | 12-23 MONTHS AGO | 15 |
37.5%
|
| 3 | 2 OR MORE YEARS AGO | 8 |
20%
|
| 9 | NO RESPONSE | 6 |
15%
|
| Sysmiss | 37114 |