| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.7%
|
| -8 | Refused | 0 |
0%
|
| 1 | Increase | 19 |
14%
|
| 2 | Remain the same | 39 |
28.7%
|
| 3 | Decrease | 77 |
56.6%
|
| Sysmiss | 950 |