| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 |
0%
|
| 1 | increased | 22 |
35.5%
|
| 2 | remained the same | 33 |
53.2%
|
| 3 | decreased | 7 |
11.3%
|
| Sysmiss | 1024 |