| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improvement | 278 |
38.1%
|
| 2 | No change | 403 |
55.3%
|
| 3 | Deterioration | 14 |
1.9%
|
| 4 | Neither existed earlier nor existing now | 29 |
4%
|
| 9 | Invalid | 5 |
0.7%
|