| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not impt | 520 |
6.4%
|
| 1 | Important | 7554 |
93.6%
|
| 88 | N/A | 242 | |
| 98 | 21 | ||
| 99 | 21 | ||
| Sysmiss | 770 |