| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1.4%
|
| 1 | Increase | 184 |
42.9%
|
| 2 | Decrease | 68 |
15.9%
|
| 3 | Stay the same | 171 |
39.9%
|