| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a year | 297 |
25.3%
|
| 2 | 1 year to less than 3 years | 651 |
55.5%
|
| 3 | 3 years or more | 226 |
19.3%
|
| Sysmiss | 45993 |