| Value | Category | Cases | |
|---|---|---|---|
| 1 | Much higher | 925 |
4.3%
|
| 2 | Higher | 3574 |
16.5%
|
| 3 | More or less the same | 5661 |
26.2%
|
| 4 | Lower | 7451 |
34.5%
|
| 5 | Much Lower | 3597 |
16.7%
|
| 9 | Unspecified | 393 |
1.8%
|