| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -77 | Does not apply | 10 |
3.5%
|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| -7 | Does not apply (spontaneous) | 185 |
65.1%
|
| 1 | Increase | 1 |
0.4%
|
| 2 | Remain the same | 60 |
21.1%
|
| 3 | Decrease | 27 |
9.5%
|
| Sysmiss | 76 |