| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1-2 years | 18 |
22.8%
|
| 2 | 3-4 years | 30 |
38%
|
| 3 | 5-10 years | 10 |
12.7%
|
| 4 | 10+ years | 21 |
26.6%
|
| Sysmiss | 2110 |