| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improvement | 299 |
41%
|
| 2 | No change | 356 |
48.8%
|
| 3 | Deterioration | 34 |
4.7%
|
| 4 | Neither existed earlier nor existing now | 36 |
4.9%
|
| 9 | Invalid | 5 |
0.7%
|