| Value | Category | Cases | |
|---|---|---|---|
| 0 | 308 |
40.2%
|
|
| 1 | 64 |
8.4%
|
|
| 2 | 74 |
9.7%
|
|
| 3 | 122 |
15.9%
|
|
| 4 | 102 |
13.3%
|
|
| 5 | 42 |
5.5%
|
|
| 6 | 18 |
2.3%
|
|
| 7 | 36 |
4.7%
|
|
| Sysmiss | 2 |