| Value | Category | Cases | |
|---|---|---|---|
| 0 | 73 |
3.5%
|
|
| 1 | 408 |
19.4%
|
|
| 2 | 1416 |
67.4%
|
|
| 3 | 195 |
9.3%
|
|
| 4 | 9 |
0.4%
|
|
| Sysmiss | 948 |