| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know (Spontaneous) | 3 |
15%
|
| 1 | Longer | 7 |
35%
|
| 2 | Equal | 6 |
30%
|
| 3 | Shorter | 4 |
20%
|
| Sysmiss | 100 |