| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1.Less than 6 months | 52 |
6.9%
|
| 2 | 2.6 months | 370 |
48.9%
|
| 3 | 3.More than 6 months | 329 |
43.5%
|
| 98 | 98.DON'T KNOW | 5 |
0.7%
|
| 99 | 99.MISSING | 0 |
0%
|
| Sysmiss | 229 |