| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Much Worse | 19 |
1.5%
|
| 2 | Worse | 68 |
5.3%
|
| 3 | Same | 172 |
13.5%
|
| 4 | Better | 711 |
55.6%
|
| 5 | Much Better | 273 |
21.4%
|
| 9 | Don't know | 34 |
2.7%
|
| 998 | Refused | 0 |
0%
|