| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a year | 749 |
34.8%
|
| 2 | 1 year to less than 3 years | 1036 |
48.2%
|
| 3 | 3 years or more | 366 |
17%
|
| Sysmiss | 66838 |