| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 Improved | 4389 |
39.3%
|
| 2 | 2 Gotten worse | 2154 |
19.3%
|
| 3 | 3 Stayed the same (volunteered) | 4045 |
36.2%
|
| 8 | 8 DK | 588 |
5.3%
|
| 9 | 9 Refused | 6 |
0.1%
|
| Sysmiss | 1088101 |