| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 1 | Much Worse | 1 |
0.1%
|
| 2 | Worse | 27 |
2.3%
|
| 3 | Same | 78 |
6.5%
|
| 4 | Better | 640 |
53.4%
|
| 5 | Much Better | 403 |
33.6%
|
| 9 | Don't know | 47 |
3.9%
|
| 998 | Refused | 0 |
0%
|