| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a month | 2 |
15.4%
|
| 2 | 1 month to less than 6 months | 0 |
0%
|
| 3 | 6 months to less than a year | 1 |
7.7%
|
| 4 | 1 - 2 years | 1 |
7.7%
|
| 5 | More than 2 years | 9 |
69.2%
|
| Sysmiss | 912 |