| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 24 |
2.4%
|
| -7 | Does not apply | 20 |
2%
|
| 1 | Increase | 735 |
73.4%
|
| 2 | Decrease | 34 |
3.4%
|
| 3 | Remain the same | 188 |
18.8%
|