| Value | Category | Cases | |
|---|---|---|---|
| 0 | 10 |
4%
|
|
| 1 | 160 |
64.5%
|
|
| 2 | 57 |
23%
|
|
| 3 | 14 |
5.6%
|
|
| 4 | 4 |
1.6%
|
|
| 5 | 1 |
0.4%
|
|
| 10 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| Sysmiss | 313 |