| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
11.6%
|
|
| 1 | 87 |
56.1%
|
|
| 2 | 30 |
19.4%
|
|
| 3 | 11 |
7.1%
|
|
| 4 | 4 |
2.6%
|
|
| 5 | 3 |
1.9%
|
|
| 20 | 2 |
1.3%
|
|
| Sysmiss | 1088 |