| Value | Category | Cases | |
|---|---|---|---|
| 0 | 228 |
14.1%
|
|
| 1 | 396 |
24.4%
|
|
| 2 | 648 |
40%
|
|
| 3 | 247 |
15.2%
|
|
| 4 | 29 |
1.8%
|
|
| 5 | 36 |
2.2%
|
|
| 6 | 6 |
0.4%
|
|
| 7 | 32 |
2%
|
|
| Sysmiss | 9 |