| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 1772 |
99%
|
| 1 | yes | 13 |
0.7%
|
| 2 | 2 |
0.1%
|
|
| 3 | 2 |
0.1%
|
|
| Sysmiss | 420 |