| Value | Category | Cases | |
|---|---|---|---|
| 1 | less, than 1 year | 4 |
2.9%
|
| 2 | 1-2 | 5 |
3.6%
|
| 3 | 3-5 | 9 |
6.6%
|
| 4 | 6-10 | 29 |
21.2%
|
| 5 | 11 > | 90 |
65.7%
|
| Sysmiss | 4 |