| Value | Category | Cases | |
|---|---|---|---|
| 1 | Declining | 1793 |
4.4%
|
| 2 | Same | 25069 |
62.1%
|
| 3 | Improving | 13365 |
33.1%
|
| 4 | Don't know | 130 |
0.3%
|
| Sysmiss | 16208 |