| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a year | 84 |
27%
|
| 2 | 1 year to less than 3 years | 183 |
58.8%
|
| 3 | 3 years or more | 44 |
14.1%
|
| Sysmiss | 9688 |