| Value | Category | Cases | |
|---|---|---|---|
| 1 | 5 years or more | 39 |
13.9%
|
| 2 | 1 to less than 3 years | 104 |
37.1%
|
| 3 | 3 to less than 5 years | 54 |
19.3%
|
| 4 | under 1 year | 83 |
29.6%
|
| Sysmiss | 210 |