| Value | Category | Cases | |
|---|---|---|---|
| 0 | 15 |
2.8%
|
|
| 1 | 511 |
96.4%
|
|
| 2 | 2 |
0.4%
|
|
| 4 | 1 |
0.2%
|
|
| 7 | 1 |
0.2%
|
|
| Sysmiss | 1898 |