| Value | Category | Cases | |
|---|---|---|---|
| 0 | 564 |
90.7%
|
|
| 1 | 28 |
4.5%
|
|
| 2 | 15 |
2.4%
|
|
| 3 | 9 |
1.4%
|
|
| 4 | 3 |
0.5%
|
|
| 5 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| Sysmiss | 2535 |