| Value | Category | Cases | |
|---|---|---|---|
| 0 | 259 |
9.7%
|
|
| 1 | 350 |
13.1%
|
|
| 2 | 495 |
18.6%
|
|
| 3 | 555 |
20.8%
|
|
| 4 | 470 |
17.6%
|
|
| 5 | 307 |
11.5%
|
|
| 6 | 168 |
6.3%
|
|
| 7 | 63 |
2.4%
|
|
| Sysmiss | 257 |