| Value | Category | Cases | |
|---|---|---|---|
| -999 | NA | 666 |
66.4%
|
| 1 | Stayed the same | 46 |
4.6%
|
| 2 | Increased | 6 |
0.6%
|
| 3 | Reduced | 229 |
22.8%
|
| 4 | Reduced to zero | 56 |
5.6%
|