| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1-2 years | 22 |
23.4%
|
| 2 | 3-4 years | 35 |
37.2%
|
| 3 | 5-10 years | 11 |
11.7%
|
| 4 | 10+ years | 26 |
27.7%
|
| Sysmiss | 2929 |