| Value | Category | Cases | |
|---|---|---|---|
| 1 | Better | 4191 |
36.6%
|
| 2 | More or less the same | 392 |
3.4%
|
| 3 | Worse | 62 |
0.5%
|
| 9 | Missing | 5 |
0%
|
| Sysmiss | 6802 |
59.4%
|