| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-6 months | 20 |
22.7%
|
| 2 | 6-12 months | 15 |
17%
|
| 3 | 1-2 years | 18 |
20.5%
|
| 4 | 2-3 years | 12 |
13.6%
|
| 5 | Over 3 years | 23 |
26.1%
|
| Sysmiss | 4 |