| Value | Category | Cases | |
|---|---|---|---|
| 1 | More | 22 |
3.1%
|
| 2 | Less | 184 |
26.3%
|
| 3 | The same | 387 |
55.3%
|
| 98 | NK | 52 |
7.4%
|
| 99 | NA | 55 |
7.9%
|
| Sysmiss | 958 |