| Value | Category | Cases | |
|---|---|---|---|
| 0 | 264 |
77.6%
|
|
| 1 | 64 |
18.8%
|
|
| 2 | 8 |
2.4%
|
|
| 3 | 3 |
0.9%
|
|
| 7 | 1 |
0.3%
|
|
| Sysmiss | 6839 |