| Value | Category | Cases | |
|---|---|---|---|
| 0 | 9 |
0.1%
|
|
| 1 | 154 |
2.1%
|
|
| 2 | 561 |
7.8%
|
|
| 3 | 6462 |
89.9%
|
|
| Sysmiss | 1809 |