| Value | Category | Cases | |
|---|---|---|---|
| 1 | less, than 1 year | 7 |
3.6%
|
| 2 | 1-2 | 15 |
7.7%
|
| 3 | 3-5 | 20 |
10.2%
|
| 4 | 6-10 | 26 |
13.3%
|
| 5 | 11 > | 128 |
65.3%
|
| Sysmiss | 1 |