| Value | Category | Cases | |
|---|---|---|---|
| 6-12 months | 2 |
18.2%
|
|
| Between 1 and 2 years | 1 |
9.1%
|
|
| Between 2 and 5 years | 3 |
27.3%
|
|
| More than 5 years | 4 |
36.4%
|
|
| Refuse to answer | 1 |
9.1%
|