| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
0.5%
|
| -7 | Does not apply (spontaneous) | 65 |
6%
|
| 1 | Increased | 20 |
1.8%
|
| 2 | Remained the Same | 712 |
65.2%
|
| 3 | Decreased | 290 |
26.6%
|
| Sysmiss | 318 |