| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a year | 357 |
28.6%
|
| 2 | 1 year to less than 3 years | 610 |
48.9%
|
| 3 | 3 years or more | 281 |
22.5%
|
| Sysmiss | 44454 |