| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 |
0%
|
| 1 | increased | 99 |
86.8%
|
| 2 | remained the same | 11 |
9.6%
|
| 3 | decreased | 4 |
3.5%
|
| Sysmiss | 1881 |