| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Higher | 1487 |
37.8%
|
| 2 | 2. Same | 987 |
25.1%
|
| 3 | 3. Lower | 56 |
1.4%
|
| 99 | 99. Don't know | 1400 |
35.6%
|