| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
4.6%
|
| 1 | Increase | 127 |
84.1%
|
| 2 | Stay the same | 12 |
7.9%
|
| 3 | Decrease | 5 |
3.3%
|