| Value | Category | Cases | |
|---|---|---|---|
| 0 | 580 |
75.7%
|
|
| 1 | 56 |
7.3%
|
|
| 2 | 54 |
7%
|
|
| 3 | 49 |
6.4%
|
|
| 4 | 17 |
2.2%
|
|
| 5 | 6 |
0.8%
|
|
| 6 | 2 |
0.3%
|
|
| 7 | 2 |
0.3%
|
|
| Sysmiss | 2 |