| Value | Category | Cases | |
|---|---|---|---|
| 0 | 53 |
7.3%
|
|
| 1 | 452 |
62%
|
|
| 2 | 182 |
25%
|
|
| 3 | 32 |
4.4%
|
|
| 4 | 8 |
1.1%
|
|
| 6 | 2 |
0.3%
|
|
| Sysmiss | 160 |