| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 52 |
1.5%
|
| 1 | Yes | 1513 |
42.6%
|
| 2 | 899 |
25.3%
|
|
| 9 | 1089 |
30.7%
|
|
| Sysmiss | 2338 |