| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 888 |
50.5%
|
| -7 | DOES NOT APPLY | 447 |
25.4%
|
| 1 | Worse | 38 |
2.2%
|
| 2 | Same | 352 |
20%
|
| 3 | Better | 34 |
1.9%
|