| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1-2 years | 7 |
18.9%
|
| 2 | 3-4 years | 12 |
32.4%
|
| 3 | 5-10 years | 6 |
16.2%
|
| 4 | 10+ years | 12 |
32.4%
|
| Sysmiss | 1665 |