| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1-2 years | 27 |
29.7%
|
| 2 | 3-4 years | 29 |
31.9%
|
| 3 | 5-10 years | 13 |
14.3%
|
| 4 | 10+ years | 22 |
24.2%
|
| Sysmiss | 2093 |