| Value | Category | Cases | |
|---|---|---|---|
| 1 | LESS THAN 12 MONTHS AGO | 880 |
6%
|
| 2 | 12-23 MONTHS AGO | 962 |
6.6%
|
| 3 | 2 OR MORE YEARS AGO | 137 |
0.9%
|
| 9 | NO RESPONSE | 3 |
0%
|
| Sysmiss | 12627 |
86.4%
|