| Value | Category | Cases | |
|---|---|---|---|
| 1 | Better | 3229 |
80.2%
|
| 2 | More or less the same | 718 |
17.8%
|
| 3 | Worse | 69 |
1.7%
|
| 9 | Missing | 9 |
0.2%
|
| Sysmiss | 1160 |