| Value | Category | Cases | |
|---|---|---|---|
| 0 | 486 |
89.5%
|
|
| 1 | 2 |
0.4%
|
|
| 2 | 8 |
1.5%
|
|
| 3 | 4 |
0.7%
|
|
| 4 | 26 |
4.8%
|
|
| 5 | 1 |
0.2%
|
|
| 6 | 12 |
2.2%
|
|
| 7 | 4 |
0.7%
|
|
| Sysmiss | 668 |