| Value | Category | Cases | |
|---|---|---|---|
| 0 | 664 |
43.7%
|
|
| 1 | 403 |
26.5%
|
|
| 2 | 279 |
18.4%
|
|
| 3 | 123 |
8.1%
|
|
| 4 | 36 |
2.4%
|
|
| 5 | 13 |
0.9%
|
|
| 6 | 1 |
0.1%
|
|
| Sysmiss | 711 |