| Value | Category | Cases | |
|---|---|---|---|
| 0 | 578 |
58%
|
|
| 1 | 275 |
27.6%
|
|
| 2 | 111 |
11.1%
|
|
| 3 | 27 |
2.7%
|
|
| 4 | 3 |
0.3%
|
|
| 7 | 2 |
0.2%
|
|
| 11 | 1 |
0.1%
|
|
| Sysmiss | 2 |