| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-6 months | 7 |
8%
|
| 2 | 6-12 months | 9 |
10.2%
|
| 3 | 1-2 years | 11 |
12.5%
|
| 4 | 2-3 years | 13 |
14.8%
|
| 5 | Over 3 years | 48 |
54.5%
|
| Sysmiss | 4 |