| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 5 |
4.3%
|
| 1 | increased | 69 |
60%
|
| 2 | remained the same | 40 |
34.8%
|
| 3 | decreased | 1 |
0.9%
|
| Sysmiss | 971 |