| Value | Category | Cases | |
|---|---|---|---|
| 1 | improved | 818 |
45.5%
|
| 2 | stayed same | 733 |
40.8%
|
| 3 | worsened | 226 |
12.6%
|
| 7 | don't know | 20 |
1.1%
|
| 8 | refuse to answer | 0 |
0%
|