| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
0.5%
|
| -7 | Does not apply (spontaneous) | 8 |
0.7%
|
| 1 | Increased | 37 |
3.4%
|
| 2 | Remained the Same | 658 |
60.3%
|
| 3 | Decreased | 384 |
35.2%
|
| Sysmiss | 318 |