| Value | Category | Cases | |
|---|---|---|---|
| 1 | six months | 702 |
21.2%
|
| 2 | 12 months | 786 |
23.8%
|
| 3 | 24 months | 822 |
24.8%
|
| 4 | I won't accept | 999 |
30.2%
|