| Value | Category | Cases | |
|---|---|---|---|
| 1 | Decreased a lot | 502 |
4.2%
|
| 2 | Decreased | 1727 |
14.6%
|
| 3 | Remained the same | 1635 |
13.8%
|
| 4 | Increased | 3063 |
25.9%
|
| 5 | Don't know | 4887 |
41.4%
|