| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 year to 3 years | 691 |
2.9%
|
| 2 | 4 to 12 months | 394 |
1.7%
|
| 3 | Less than 3 months | 964 |
4.1%
|
| 4 | More than 3 years | 16808 |
71.2%
|
| Missing value | 4746 |
20.1%
|