| Value | Category | Cases | |
|---|---|---|---|
| 0 | 534 |
80.9%
|
|
| 1 | 21 |
3.2%
|
|
| 2 | 31 |
4.7%
|
|
| 3 | 40 |
6.1%
|
|
| 4 | 21 |
3.2%
|
|
| 5 | 9 |
1.4%
|
|
| 6 | 2 |
0.3%
|
|
| 7 | 2 |
0.3%
|
|
| Sysmiss | 1 |