| Value | Category | Cases | |
|---|---|---|---|
| 1 | More | 134 |
19.1%
|
| 2 | Less | 69 |
9.9%
|
| 3 | The same | 481 |
68.7%
|
| 98 | NK | 12 |
1.7%
|
| 99 | NA | 4 |
0.6%
|
| Sysmiss | 958 |