| Value | Category | Cases | |
|---|---|---|---|
| 1 | less, than 1 year | 11 |
2.4%
|
| 2 | 1-2 | 29 |
6.3%
|
| 3 | 3-5 | 53 |
11.5%
|
| 4 | 6-10 | 65 |
14.1%
|
| 5 | 11 > | 303 |
65.7%
|
| Sysmiss | 2 |