| Value | Category | Cases | |
|---|---|---|---|
| 0 | 276 |
28.8%
|
|
| 1 | 378 |
39.4%
|
|
| 2 | 195 |
20.3%
|
|
| 3 | 78 |
8.1%
|
|
| 4 | 21 |
2.2%
|
|
| 5 | 11 |
1.1%
|
|
| 6 | 1 |
0.1%
|
|
| Sysmiss | 497 |