| Value | Category | Cases | |
|---|---|---|---|
| 0 | 570 |
86.4%
|
|
| 1 | 17 |
2.6%
|
|
| 2 | 16 |
2.4%
|
|
| 3 | 20 |
3%
|
|
| 4 | 16 |
2.4%
|
|
| 5 | 10 |
1.5%
|
|
| 6 | 3 |
0.5%
|
|
| 7 | 8 |
1.2%
|
|
| Sysmiss | 1 |