| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 93 |
0.8%
|
| 1 | Used | 1671 |
14.8%
|
| 2 | Not used | 9533 |
84.4%
|
| 4 | 1 |
0%
|
|
| Sysmiss | 2 |