| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improvement | 257 |
35.3%
|
| 2 | No change | 325 |
44.6%
|
| 3 | Deterioration | 27 |
3.7%
|
| 4 | Neither existed earlier nor existing now | 114 |
15.7%
|
| 9 | Invalid | 5 |
0.7%
|