| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | higher | 1509 |
72.5%
|
| 2 | about the same | 553 |
26.6%
|
| 3 | lower | 18 |
0.9%
|
| 9 | na | 0 |
0%
|
| 10 | 1 |
0%
|
|
| 99 | 1 |
0%
|
|
| Sysmiss | 918 |