| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a year | 338 |
26.5%
|
| 2 | 1 year to less than 3 years | 670 |
52.5%
|
| 3 | 3 years or more | 268 |
21%
|
| Sysmiss | 47714 |