| Value | Category | Cases | |
|---|---|---|---|
| -999 | NA | 4 |
0.4%
|
| 1 | More | 873 |
89.5%
|
| 2 | Less | 62 |
6.4%
|
| 3 | The same | 36 |
3.7%
|
| 99 | Don't know | 0 |
0%
|