| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 6 months | 0 |
0%
|
| 2 | 6 - 12 months | 0 |
0%
|
| 3 | More than one year but less than 2 | 1 |
25%
|
| 4 | 2 years or more | 0 |
0%
|
| 5 | Uncertain | 3 |
75%
|
| Sysmiss | 921 |