| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1-2 years | 132 |
33.8%
|
| 2 | 3-4 years | 126 |
32.3%
|
| 3 | 5-10 years | 72 |
18.5%
|
| 4 | 10+ years | 60 |
15.4%
|
| Sysmiss | 7094 |