| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -8 | Refused | 0 |
0%
|
| 1 | Increase | 10 |
10.5%
|
| 2 | Remain the same | 17 |
17.9%
|
| 3 | Decrease | 68 |
71.6%
|
| Sysmiss | 991 |