| Value | Category | Cases | |
|---|---|---|---|
| 1 | up to 6 months | 3 |
1%
|
| 2 | 7-12 months | 3 |
1%
|
| 3 | 1-3 years | 26 |
9%
|
| 4 | more than 3 years | 257 |
88.9%
|
| Sysmiss | 22392 |