| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Much worse | 46 |
2.9%
|
| 2 | Worse | 114 |
7.1%
|
| 3 | Same | 126 |
7.9%
|
| 4 | Better | 815 |
50.9%
|
| 5 | Much better | 482 |
30.1%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don’t know | 16 |
1%
|