| Value | Category | Cases | |
|---|---|---|---|
| 1 | less, than 1 year | 18 |
7.5%
|
| 2 | 1-2 | 12 |
5%
|
| 3 | 3-5 | 34 |
14.2%
|
| 4 | 6-10 | 37 |
15.4%
|
| 5 | 11 > | 139 |
57.9%
|