| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Much worse | 27 |
2.3%
|
| 2 | Worse | 225 |
19%
|
| 3 | Same | 396 |
33.5%
|
| 4 | Better | 419 |
35.4%
|
| 5 | Much better | 60 |
5.1%
|
| 9 | Don't know | 54 |
4.6%
|
| 98 | Refused | 0 |
0%
|