| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused to respond | 1 |
0.2%
|
| -98 | Don't know | 25 |
4%
|
| 1 | Increase | 403 |
64.8%
|
| 2 | No change | 95 |
15.3%
|
| 3 | Decrease | 98 |
15.8%
|
| Sysmiss | 3 |