| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Much worse | 50 |
4.2%
|
| 2 | Worse | 79 |
6.6%
|
| 3 | Same | 149 |
12.5%
|
| 4 | Better | 420 |
35.3%
|
| 5 | Much better | 422 |
35.5%
|
| 9 | Don't know | 70 |
5.9%
|
| 998 | Refused | 0 |
0%
|