| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 6months | 49 |
11.8%
|
| 2 | 6-11 months | 45 |
10.8%
|
| 3 | 1-5years | 153 |
36.7%
|
| 4 | More than 5years | 159 |
38.1%
|
| 8 | DK | 11 |
2.6%
|
| Sysmiss | 19423 |