| Value | Category | Cases | |
|---|---|---|---|
| 0-6 months | 4 |
6.1%
|
|
| 6-12 months | 4 |
6.1%
|
|
| I don't know | 8 |
12.1%
|
|
| Indefinately | 38 |
57.6%
|
|
| More than one year | 12 |
18.2%
|