| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Increased | 1 |
0.7%
|
| 2 | Remained the same | 41 |
30.1%
|
| 3 | Decreased | 94 |
69.1%
|
| Sysmiss | 14 |