| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -8 | Refused | 0 |
0%
|
| 1 | Increase | 14 |
17.1%
|
| 2 | Remain the same | 18 |
22%
|
| 3 | Decrease | 50 |
61%
|
| Sysmiss | 1004 |