| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7 |
0.5%
|
|
| 1 | 14 |
1%
|
|
| 2 | 67 |
4.8%
|
|
| 3 | 187 |
13.5%
|
|
| 4 | 383 |
27.6%
|
|
| 5 | 328 |
23.6%
|
|
| 6 | 254 |
18.3%
|
|
| 7 | 101 |
7.3%
|
|
| 8 | 46 |
3.3%
|
|
| Sysmiss | 113 |