| Value | Category | Cases | |
|---|---|---|---|
| 1 | LESS THAN 12 MONTHS AGO | 396 |
7.6%
|
| 2 | 12-23 MONTHS AGO | 149 |
2.9%
|
| 3 | 2 OR MORE YEARS AGO | 478 |
9.1%
|
| 9 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 4202 |
80.4%
|