| Value | Category | Cases | |
|---|---|---|---|
| 1 | Involved, Important | 20939 |
45.9%
|
| 2 | Involved, Not Important | 4175 |
9.2%
|
| 3 | Not Involved | 18561 |
40.7%
|
| 4 | Method Not Applicable | 1919 |
4.2%
|
| Sysmiss | 7194 |