| Value | Category | Cases | |
|---|---|---|---|
| 0 | 578 |
38.5%
|
|
| 1 | 538 |
35.8%
|
|
| 2 | 348 |
23.2%
|
|
| 3 | 27 |
1.8%
|
|
| 4 | 9 |
0.6%
|
|
| 5 | 1 |
0.1%
|
|
| 6 | 1 |
0.1%
|
|
| Sysmiss | 3 |