| Value | Category | Cases | |
|---|---|---|---|
| 0 | Same | 459 |
44.5%
|
| 1 | Increase | 278 |
26.9%
|
| 2 | Decrease | 287 |
27.8%
|
| 8 | DK | 8 |
0.8%
|
| 9 | 28 | ||
| Sysmiss | 18380 |