| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improvement | 316 |
43.5%
|
| 2 | No change | 327 |
45%
|
| 3 | Deterioration | 39 |
5.4%
|
| 4 | Neither existed earlier nor existing now | 40 |
5.5%
|
| 9 | Invalid | 5 |
0.7%
|