| Value | Category | Cases | |
|---|---|---|---|
| 0 | 34 |
11.2%
|
|
| 1 | 226 |
74.6%
|
|
| 2 | 36 |
11.9%
|
|
| 3 | 5 |
1.7%
|
|
| 4 | 2 |
0.7%
|
|
| Sysmiss | 7 |