| Value | Category | Cases | |
|---|---|---|---|
| 0 | 31 |
32.3%
|
|
| 1 | 35 |
36.5%
|
|
| 2 | 21 |
21.9%
|
|
| 3 | 7 |
7.3%
|
|
| 4 | 2 |
2.1%
|
|
| Sysmiss | 453 |