| Value | Category | Cases | |
|---|---|---|---|
| 0 | 228 |
28.3%
|
|
| 1 | 89 |
11%
|
|
| 2 | 23 |
2.9%
|
|
| 3 | 208 |
25.8%
|
|
| 4 | 258 |
32%
|
|
| Sysmiss | 889 |