| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused to respond | 3 |
1%
|
| -98 | Don't know | 10 |
3.2%
|
| 1 | Increase | 198 |
64.3%
|
| 2 | No change | 40 |
13%
|
| 3 | Decrease | 57 |
18.5%
|
| Sysmiss | 317 |