| Value | Category | Cases | |
|---|---|---|---|
| 1 | Improve | 1139 |
26.6%
|
| 2 | The same | 2556 |
59.8%
|
| 3 | Deteriorate | 565 |
13.2%
|
| 4 | Don’t know just started using | 16 |
0.4%
|
| Sysmiss | 15044 |