| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 2 |
0.3%
|
| -77 | Does not apply | 0 |
0%
|
| -9 | Don't know (spontaneous) | 2 |
0.3%
|
| -7 | Does not apply (spontaneous) | 357 |
45.7%
|
| 1 | Increase | 8 |
1%
|
| 2 | Remain the same | 87 |
11.1%
|
| 3 | Decrease | 325 |
41.6%
|
| Sysmiss | 315 |