| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a year | 291 |
27.6%
|
| 2 | 1 year to less than 3 years | 555 |
52.6%
|
| 3 | 3 years or more | 210 |
19.9%
|
| Sysmiss | 46047 |