| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.1%
|
| 1 | Much Worse | 10 |
0.4%
|
| 2 | Worse | 37 |
1.5%
|
| 3 | Same | 360 |
15%
|
| 4 | Better | 1299 |
54.2%
|
| 5 | Much Better | 630 |
26.3%
|
| 9 | Don't know | 60 |
2.5%
|
| 98 | Refused | 0 |
0%
|