| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improved a lot | 690 |
3.7%
|
| 2 | Improved | 3606 |
19.5%
|
| 3 | Fairly improved | 6921 |
37.5%
|
| 4 | Become worse | 4372 |
23.7%
|
| 5 | Become a lot worse | 2866 |
15.5%
|