| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improvement | 315 |
43.2%
|
| 2 | No change | 379 |
52%
|
| 3 | Deterioration | 15 |
2.1%
|
| 4 | Neither existed earlier nor existing now | 15 |
2.1%
|
| 9 | Invalid | 5 |
0.7%
|