| Value | Category | Cases | |
|---|---|---|---|
| 0 | 8 |
3.4%
|
|
| 1 | 84 |
35.4%
|
|
| 2 | 61 |
25.7%
|
|
| 3 | 36 |
15.2%
|
|
| 5 | 48 |
20.3%
|
|
| Sysmiss | 1996 |