| Value | Category | Cases | |
|---|---|---|---|
| 0 | 5 |
1.5%
|
|
| 1 | 28 |
8.3%
|
|
| 2 | 281 |
83.4%
|
|
| 6 | 2 |
0.6%
|
|
| 7 | 2 |
0.6%
|
|
| 9 | 19 |
5.6%
|
|
| Sysmiss | 1422 |