| Value | Category | Cases | |
|---|---|---|---|
| 0 | 584 |
72.3%
|
|
| 1 | 135 |
16.7%
|
|
| 2 | 60 |
7.4%
|
|
| 3 | 25 |
3.1%
|
|
| 4 | 2 |
0.2%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| Sysmiss | 13 |