| Value | Category | Cases | |
|---|---|---|---|
| 0 | 310 |
90.4%
|
|
| 1 | 24 |
7%
|
|
| 2 | 7 |
2%
|
|
| 3 | 1 |
0.3%
|
|
| 7 | 1 |
0.3%
|
|
| Sysmiss | 1601 |