| Value | Category | Cases | |
|---|---|---|---|
| 0 | 521 |
68%
|
|
| 1 | 215 |
28.1%
|
|
| 2 | 29 |
3.8%
|
|
| 3 | 1 |
0.1%
|
|
| Sysmiss | 1630 |