| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 1 | Much worse | 46 |
3.8%
|
| 2 | Worse | 242 |
20.2%
|
| 3 | Same | 459 |
38.3%
|
| 4 | Better | 382 |
31.8%
|
| 5 | Much better | 18 |
1.5%
|
| 9 | Don't know | 52 |
4.3%
|
| 98 | Refused | 0 |
0%
|